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Cruz, Rex Victor O., and Peter F. Ffolliott. "A Geographically-Based Land Use Suitability Assessment and Land Capability Classification." Arizona-Nevada Academy of Science, 1990. http://hdl.handle.net/10150/296434.
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From the Proceedings of the 1990 Meetings of the Arizona Section - American Water Resources Association and the Hydrology Section - Arizona-Nevada Academy of Science - April 21, 1990, Arizona State University, Tempe, Arizona
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Cruz, Rex Victor Oafallas. "Land-use suitability assessment and land capability classification in Ibulao watershed, Philippines." Diss., The University of Arizona, 1990. http://hdl.handle.net/10150/184989.
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A geographically-based framework for landuse suitability assessment and land capability classification in Ibulao watershed, Philippines was developed and used in this study. Landuse suitability assessment was based primarily on soil erosion, the results of which were compared with the outcome of suitability assessments based on two land classification systems in the Philippines. The Ibulao watershed was subdivided into 10-ha cells, and each cell was independently evaluated with the aid of a geographic information system called MAP. The soil erosion rates for each cell were estimated using the MUSLE. The surface runoff and peak runoff rates were simulated using an infiltration-kinematic routing model, an event-based stochastic rainfall duration model, and the CREAMS model. The land capability classification was based on erosion index representing the inherent soil erodibility of a cell computed on the basis of runoff erosivity factor, soil erodibility factor, and the slope length-gradient factor. The results of capability classification were used to identify the different alternative uses of any cell in the watershed. The framework described in this study for landuse suitability assessment and land capability classification illustrated potentials for applications to the management and allocation of land resources in the Philippines. An erosion-based landuse assessment and land capability classification appears to be a better alternative to a slope-based system as far as the following are concerned: (1) identification of landuses which would not jeopardize the long term productivity and stability of an area; (2) a more accurate and meaningful land capability description and classification; and (3) making more lands available for various alternative uses by using criteria such as soil erosion which can easily be manipulated.
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Wang, Wenjia. "Evaluating land suitability to increase food production in Kenya." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/99627.
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Thesis: M. Eng. in Environmental Engineering Science, Massachusetts Institute of Technology, Department of Civil and Environmental Engineering, 2015.Cataloged from PDF version of thesis.
Includes bibliographical references (pages 67-70).
With increasing food deficits and growing population, Kenya is facing strong challenges to meet the food demand of the country, as the majority of the domestic consumption of some staple food sources, such as wheat and rice, is heavily relied on food relieve. This report aims to investigate the potential in increasing food production in by evaluating the availabilities of land and water resources. A land suitability analysis is carried out in this report to identify the arability of land of Kenya for the selected crops including maize, wheat and rice. The results of the report show that there is a huge potential for intensifying the food productions of the selected crops. And a discussion of the inefficiencies in the current crop production in Kenya is also included at the end of the report.
by Wenjia Wang.
M. Eng. in Environmental Engineering Science
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Brännvall, Evelina. "Suitability of fly ash for construction and land applications." Doctoral thesis, Luleå tekniska universitet, Geovetenskap och miljöteknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-17269.
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Municipal solid waste incineration fly ash is often landfilled or sent abroad for stabilization because it is considered a hazardous waste. These approaches to fly ash are both costly, and highlight the need for alternative and sustainable ash recycling. Both the needs of waste recycling and preservation of natural resources can be solved by using fly ashes as a secondary construction material and as soil fertilizer.Three types of fly ashes have been investigated in the laboratory experiments. Namely municipal solid waste incineration (MSWI), refuse-derived-fuel (RDF) and biofuel fly ashes. Factors influencing changes in chemical properties and mineralogical composition of RDF fly ash exposed to environmental conditions close to those that are found in a landfill top cover were evaluated in the accelerated ageing experiment. Element availability to leaching and plant uptake in soil amended with MSWI, biofuel fly ashes and biosolids was also evaluated.RDF fly ash exposed to the conditions found in a landfill top cover (20% CO2, 65% RH, 30°C T) lead to the chemical and mineralogical transformations that resulted in reduced leaching of most of the elements studied here. Only concentrations of Cl- in the leachates were an issue, because they still exceeded the leaching limit values; nevertheless the leaching of this element in aged ash decreased by 50% compared to fresh ash.Application of pelletized MSWI fly ash with biosolids on soil resulted in elevated total concentrations of As, Cd and Pb in soil (by 29%, 100% and 300%), but dissolved concentrations of these elements in soil pore water, except the As, were low as in the range of drinking water concentrations (98/83/EC). Furthermore, the concentrations of Cd and Pb in plant biomass were negligible regardless of the type of ash used.Based on the observations, RDF fly ash is considered as a suitable material to be used in a landfill liner. Whereas MSWI and biofuel fly ashes based on element availability for plants studies, could be considered suitable for land applications. But doses to be applied on soil should be adjusted to the type of ashes used to avoid accumulation of potentially toxic elements in soil over time.Godkänd; 2013; 20130827 (evebra); Tillkännagivande disputation 2013-10-04 Nedanstående person kommer att disputera för avläggande av teknologie doktorsexamen. Namn: Evelina Brännvall Ämne: Avfallsteknik/Waste Science and Technology Avhandling: Suitability of Fly Ash for Construction and Land Applications Opponent: Associate Professor Alessandra Polettini, University of Rome ”La Sapienza”, Rome, Italy Ordförande: Professor Anders Lagerkvist, Institutionen för samhällsbyggnad och naturresurser, Luleå tekniska universitet Tid: Fredag den 25 oktober 2013, kl 10.00 Plats: F1031, Luleå tekniska universitet
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Cunningham, Virginia. "Land use planning and development suitability in Queenstown, New Zealand." Thesis, University of Canterbury. Geology, 1994. http://hdl.handle.net/10092/10019.
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The demand for residential properties in Queenstown is high, but the demand is not matched by the availability of subdivided land and hence there is pressure to develop land which is less geotechnically suitable. It is therefore important that land use planners have an understanding of geological processes and conditions that impose physical constraints to development. The Wakatipu Basin lies within the Otago Schist belt. It is underlain by pelitic and
psammitic greyschist with minor greenschist and mafic schists. The structure and texture of the greyschists control many of the geomorphic features in the Basin, the most notable being the extensive foliation-controlled slope failures. Glacigenic deposits dating from the Waimean and Otiran Glaciations are preserved in parts of the Basin. Post-glacial geology is dominated by lacustrine and fluvio-deltaic sediments deposited when Lake Wakatipu was more extensive and at a higher level than it is at present. Foundation materials in the Queenstown urban area consist mainly of greyschist bedrock, Otiranaged tills, and fan-delta complexes, with minor deposits of beach gravels, lacustrine silts and sands, and alluvial gravels.
An engineering geological investigation was undertaken to determine the nature and distribution of the geological material in the Wakatipu Basin. The Basin was mapped at a scale of 1:25,000, and the urban area of Queenstown was mapped in more detail at
1:10,000. The maps produced show bedrock and surficial geology, and geomorphology, and as such they are a guide to expected foundation conditions in the area. Limited laboratory testing was undertaken to determine the grainsize distributions of various surficial deposits.
On the basis of the engineering geological investigation, seven geological conditions and processes affecting or potentially affecting the area have been identified. They are stream bank and lake shore erosion, debris deposition, slope movement, weak foundation materials (silts, cohesionless gravels, schist crush zones), topography, flooding, and seismicity.
The identification and evaluation of the physical constraints forms the basis for the compilation of a Development Suitability Map for the Queenstown urban area
(1:10,000). By showing the type of constraint present, and the degree of geotechnical limitation it places on development in that area, the map effectively subdivides the map into parcels delineating areas that are more, or less, suitable for residential development.
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Mu, Yao. "Developing a Suitability Index for Residential Land Use: A case study in Dianchi Drainage Area." Thesis, University of Waterloo, 2006. http://hdl.handle.net/10012/2912.
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The conflict between residential land and agriculture land in China is increasingly sharpened, especially when some urban development began to sprawl to the suburban and rural areas. In order to plan land resources properly, land suitability assessment is often conducted to determine which type of land use is most appropriate for a particular location. The main objective of this study is to examine how land suitability assessment methods could be used in land planning processes in the Dianchi Drainage Area (DDA) in Southwest China to identify where future residential development should be located. The 1991 Toronto Waterfront Plan and the more recent 2005 Ontario Greenbelt Plan are examined and used to develop a framework which describes the potential for land suitability assessment in the DDA. Data limitations did not permit a suitability analysis to be completed for the DDA, however a description of methodologies for conducting residential land suitability analysis and required data are presented based on a review of relevant literature. The paper concludes with a discussion of the feasibility of land suitability in the DDA and other areas in China and also suggests opportunities for future research.
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Stones, Roger David. "Land suitability studies for the growing of deciduous berries in the Limpopo Province of South Africa." Pretoria : [s.n.], 2007. http://upetd.up.ac.za/thesis/available/etd-06262008-161148/.
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Baniya, Nabarath. "Land suitability evaluation using GIS for vegetable crops in Kathmandu Valley/Nepal." Doctoral thesis, Humboldt-Universität zu Berlin, Landwirtschaftlich-Gärtnerische Fakultät, 2008. http://dx.doi.org/10.18452/15826.
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Kathmandu ist ein stark landwirtschaftlich genutztes Tal in der Gebirgsregion Zentral-Nepals. Einst für seine ertragreiche Landwirtschaft berühmt, sind die Erträge in den letzten Jahren aufgrund ungezügelter Verstädterung und hohem Bevölkerungswachstum immer mehr gefährdet. Eine Evaluation des Kathmandu-Tals nach entscheidungstheoretischen Ansätzen im Hinblick auf den Gemüseanbau erscheint unter dem Aspekt einer nachhaltigen Landnutzung und einer erhöhten Gemüseproduktion notwendig. Es ist ein entscheidender Ansatz dieser Arbeit, die verfügbare Anbauflächen im Kathmandu-Tal in verschiedene Eignungsklassen für den Gemüseanbau zu klassifizieren. Informationen über Zustand und Wert der Anbauflächen wurden aus verschiedensten möglichen Quellen zusammengestellt. Grundsätzliche räumliche und nicht-räumliche Daten wurden einerseits mit Hilfe primärer als auch sekundärer Quellen erfasst. Für den Entscheidungsfindungsprozess wurde sowohl ein ”bottom-up”als auch ein “top-down” Ansatz v erfolgt. Die Methode folgte den Vorgaben der FAO (1976) und den nachfolgenden Fassungen mit einer spezifischen Anpassung an das Untersuchungsgebiet. Der analytische Teil beginnt mit der Entwicklung eines Landesinformationssystems (LIS). Die Evaluation der Beschaffenheit wurde in zwei Phasen durchgeführt, namentlich 1) einer Betrachtung der Bodenfruchtbarkeit 2) einer Evaluation der Sozio-ökonomischen Infrastruktur. Gegenwärtig ist keine Region im hohen Maße fruchtbar (S1) und 31 % bzw. 66 % von insgesamt 23.519 ha fallen in die Kategorien S2 respektive S3. 1.33 % sind nicht nutzbar. Eine potenzielle hohe Bodenfruchtbarkeit kann dann erreicht werden, wenn der derzeitige Bodenzustand durch geeignete Managementmaßnahmen verbessert werden kann. Unter diesem Gesichtspunkt konnten 17.3%, 38.6% bzw. 42.6% des Gebiets mit Hilfe geostatistischer Analysen potenziell den Bodenklassen S1, S2 und S3 zugeordnet werden. Die Ergebnisse dieser Analyse wurden weiterhin mit den Ergebnissen ein er sozio-ökonomischen Evaulation kombiniert. Die Umweltbedingungen, sozialen Parameter und ökonomischen Indikatoren beschreiben die Hauptkriterien der Untersuchung und werden in 15 Unter-Kriterien zur Evaluation der 85 LMU im Untersuchungsgebiet unterteilt. Für eine Einschätzung der Gewichtung der Unter-Kriterien wurde ein paarweiser Vergleich mittels eines AHP-Prozesses ausgearbeitet. Als Endergebnis wurden dann thematische Karten des Kathmandu-Tals erstellt. Die endgültigen Ergebnisse dieser Analyse zeigt, dass 90% des Anbaugebietes im Kathmandu-Tal gut für den Gemüseanbau geeignet sein können und damit etwa mehr als 70% des Bedarfs im Kathmandu-Tal decken kann. Abschließend lässt sich sagen, dass die Ergebnisse dieser Arbeit nicht nur den Bauern der Region vermittelt werden sollten, damit sie das Potenzial ihres Landes bestmöglich ausnutzen können, sie sollten außerdem ein Werkzeug für Landschaftsplaner für eine bessere Planung der Landnutzung darstellen.Kathmandu is a valley situated in hilly area of central Nepal which is famous for agricultural business but in recent years vegetable production is jeopardized due to rampant urbanization and high population growth. For sustainable land use and better condition of vegetable production in Kathmandu, multi-criteria land suitability evaluation is felt necessary. The research objective is set as to classify available agricultural land area of Kathmandu valley into the order of different suitable classes for vegetable crop cultivation. Field level information has been gathered. Spatial and non spatial data were obtained through primary as well as secondary sources. Both bottom-up and Top-down approach for decision making process were applied. Methodology follows the guidelines prepared by FAO (1976) and later version with site specific modification. Analytical part begins with development of Land information System (LIS). Suitability evaluation was carried out in two different pha ses, namely 1) Physical land suitability evaluation and 2) Socio-economic-infrastructural land evaluation. Currently no land units are highly suitable (S1) and 31 and 66 percent area of 23519ha are falls under S2 and S3 category respectively. 1.33 percent land is unsuitable. If land condition is improved and updated from current physical suitability with appropriate management input, potential land suitability will be achieved. So after appropriate management, 17.3, 38.6 and 42.6 percent area computed under potentiality suitability class of S1, S2 and S3 respectively. This result of physical land suitability is combined for the socioeconomic land suitability evaluation. Environmental condition, social parameters and economic indicators were main criteria of study which were fragmented further into 15 sub criteria for evaluation within 85 LMU of study area. Pair-wise comparison using AHP process was carried out for importance judgment of the sub-criteria. The total out put is portrayed in the thematic maps. Final result of the multi-criteria land suitability evaluation show that more than 90 percent land area in Kathmandu can hold good vegetable cultivation. Together they can meet little above 70 percent demand of the Kathmandu valley. So, the result of this study hast to communicate to farmers to make full use of land potential also to land planners for better land use planning.
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Shah, Jignesh I. "Modeling land suitability for the Tom's Creek Basin, Blacksburg using Geographic Information System." Master's thesis, This resource online, 1996. http://scholar.lib.vt.edu/theses/available/etd-12232009-020304/.
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Emmons, Janice E. "Site suitability analysis for light industrial development in Fulton County, Illinois." Thesis, Western Illinois University, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=1538772.
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Economic development has become a key issue in the United States. The recruitment and retention of public and private development is a pivotal strategy for increasing the economic prosperity of a region or nation as well as its inhabitants. While all segments of the nation benefit from economic development, the importance of this issue is paramount to the rural areas where income, living conditions, and educational levels may not mirror those of their urban counter part. As a result, rural regions are particularly interested in attracting both public and private investments to improve their economy, increase their tax base, and increase the standard of living for those residents living in a given region.
This project utilizes GIS siting analysis models to explore potential areas for economic development in the rural area of Fulton County. In this project, ten variables were analyzed to determine suitable sites for economic development based on physical variables, transportation variables, and public utility infrastructure variables. These variables were selected based on a review of relevant literature based on economic development in rural areas. Site suitability maps were developed using a multi-criteria decision making model and weighting each variable with respect to cost incurred to the taxpaying public. The final map displays multiple areas of high suitability for light industrial development based on an analysis of these factors as they relate to Fulton County.
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Breytenbach, Andre. "GIS-based land suitability assessment and allocation decision-making in a degraded rural environmen." Thesis, Stellenbosch : University of Stellenbosch, 2011. http://hdl.handle.net/10019.1/16599.
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Thesis (MSc)--University of Stellenbosch, 2006.ENGLISH ABSTRACT: Rural development problems faced by the impoverished communities in the Transkei, South Africa, are numerous, and environmental degradation has already taken much of its toll. By working at a micro-catchment-level both the socio-economic and biophysical appreciation of the land resources were captured as encapsulated in the concept of resource management domains. Participatory decision-making allowed functional land use goals and evaluation criteria to be incorporated into computerised multi-criteria evaluation and multi-objective land use allocation models in order to reach an idealised or more sustainable land use situation. In the execution of the decision-making process seven procedural steps were followed, which are discussed in detail and applied in the case study. Synthesis of the results emphasised the envisaged rural planning potential of the methods used.
AFRIKAANSE OPSOMMING: In terme van plattelandse ontwikkeling staar talle probleme die behoeftige gemeenskappe van Transkei, Suid-Afrika, in die gesig en omgewingsdegradering neem ongehinderd sy tol. Deur op ‘n mikro-opvangsgebied vlak te werk kon beide die sosio-ekonomiese en biofisiese waarde van die gebied se hulpbronne bepaal word en uitgebeeld word in hulpbron bestuursdomeine. Deur deelnemende besluitneming is funksionele grondgebruiksdoelwitte en evaluasie kriteria gebruik in gerekenariseerde meervoudige kriteria evaluering en veeldoelige grondgebruiksaanwysingsmodelle ten einde die ideale of ‘n meer volhoubare grondgebruik situasie te verkry. Vir die uitvoering van die besluitnemingsproses is van sewe opeenvolgende stappe gebruik gemaak en die uitvoering daarvan word in diepte bespreek in hierdie gevallestudie. Sintese van die resultate het die potensiaal van hierdie beoogde landelike beplanningsmetodes beklemtoon.
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Aulakh, Gursewak S. "A framework for land suitability analysis : a case study of golf in Berkshire, England." Thesis, University of Reading, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.362018.
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César, Joaquim. "Avaliação das terras de pastoreio extensivo na Província do Namibe - Angola." Doctoral thesis, ISA/UL, 2014. http://hdl.handle.net/10400.5/7828.
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Doutoramento em Engenharia Agronómica - Instituto Superior de AgronomiaThe land resources of the Arid Sub-Region of Southwestern Angola, where the transhumance extensive grazing is practised by the Kuvale people, were evaluated. From climate, lithology and relief information basic physiographic units were delimitated, being the framework for soils and land mapping units. The land units were subsequently evaluated by a parametric method for transhumance purposes using four land qualities and ten land characteristics. Soils characteristics are strongly dependent on the nature of the respective parent material. The availability of land resources is associated with a rainfall gradient, but with local variations associated with lithology and landforms specificity. About 47% of the land was evaluated as marginally suitable, 43% as moderately suitable and 10% as not suitable for extensive grazing. The first ones are almost exclusively occupied by the Kuvale and the second ones (dominated by the agropastoralists) receive periodically the pastoralists and their herds. Mean annual rainfall and effective soil depth were determinant diagnostic factors for the suitability evaluation. The future of the transhumance system will depend on availability of land resources and framing of Kuvale people in the economy and social development under a resettlement of pastoral spaces.
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Aitken, J. F. "Predicting land suitability classes : the example of irrigated sugar-cane at Bacita Estate in Nigeria." Thesis, University of East Anglia, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.356604.
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Massawe, Boniface Hussein John. "Digital Soil Mapping and GIS-based Land Evaluation for Rice Suitability in Kilombero Valley, Tanzania." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1437397073.
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Hentze, Konrad [Verfasser]. "Suitability Analysis of Satellite Remote Sensing Methods to Map Agricultural Land Use Change after Zimbabwe's "Fast Track Land Reform Programme" / Konrad Hentze." Bonn : Universitäts- und Landesbibliothek Bonn, 2017. http://d-nb.info/1130704653/34.
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Farley, Joshua C. "Preserving land within Riley County and Manhattan, Kansas: conservationist and developer approaches to land planning." Kansas State University, 2013. http://hdl.handle.net/2097/15850.
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Master of Landscape ArchitectureDepartment of Landscape Architecture/Regional and Community Planning
Laurence A. Clement, Jr.
Increasing population in Manhattan, Kansas and rising enrollment at Kansas State University have increased the interest in establishing new residences and commercial businesses within the city limits. Locations for development include the revitalization of Manhattan’s south end and sites adjacent to Seth Child Road, US Highway 24, and K-177. Recent development patterns in Manhattan, such as residential development near Wildcat Creek, have resulted in severe environmental impacts. While most development enhances existing land use patterns, undeveloped natural areas along K-177 present several environmental opportunities and restraints that must be assessed and well-planned for to accommodate projected growth in a sustainable way. Topography, existing vegetation, drainage networks, wildlife habitats, and proximity to the Kansas River contribute to limitations in development along and extending from K-177. This proximity and resulting development could reduce existing wildlife habitat, plant species, and the overall health of Manhattan’s and the surrounding area’s air, soil and water quality. Developmental strategies are needed to ensure the conservation of sensitive ecosystems and to direct development to the most suitable areas. After conducting an inventory of the land’s natural resources and land use patterns, two suitability models were created to express areas most suitable for development based on two sets of values; conservation-minded and developer-minded. As sites for development were located and assessed, a trail suitability model was then created to express potential connections between new and old development and to show links to other significant destinations. This trail system also establishes greenway selection criteria, aiming to further protect remaining natural areas while providing a public amenity. Fulfillment of the goals and objectives of the Gateway to Manhattan Plan (GMP), establishes development suitability through a conservationist approach to ensure significant preservation of land. Such an approach and related conservation strategies are then discussed to act as a platform for decision making as lands along K-177 are developed. The trail suitability study and proposed greenway network provide solutions for meeting the GMP’s goals of establishing multi-modal connectivity along and across K-177 while conserving environmental resources. In addition to controlling development patterns, these greenways will act as conduits for wildlife, help maintain or enhance air, soil and water quality, protect endangered flora and fauna, and provide recreational amenities while minimizing overall negative environmental impacts.
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Rainis, Ruslan B. "Linking land capability/suitability analysis with environmental models using geographic information systems : an iterative modeling approach." The Ohio State University, 1991. http://rave.ohiolink.edu/etdc/view?acc_num=osu1240405674.
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Rainis, Ruslan. "Linking land capability/suitability analysis with environmental models using geographic information systems : an iterative modeling approach /." The Ohio State University, 1991. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487687485810661.
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Stones, Roger David. "Land suitability studies for the growing of deciduous berries in the Limpopo Province of South Africa." Diss., University of Pretoria, 2008. http://hdl.handle.net/2263/25864.
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Blueberry, Cherry and Raspberry (berry) production is a potential alternative land use opportunity in the Limpopo Province (LP) of South Africa (RSA). RSA based site selection criterion and literature is limited. Haenertsburg and an area near Pietersburg (Polokwane) were identified for berry production potential. In Haenertsburg, most viable land is held by the timber industry. In Pietersburg, soil and climatic conditions vary greatly, representing a site selection risk. Using accepted site selection processes, a study was conducted which identified the need to select land qualities and characteristics (QC’s) appropriate to berry production. The study revealed key QCs’ and secondary QCs’. Key QCs’ must be adhered to for site selection, while secondary QCs’ have site-specific application. The key land qualities are climate, soil, water, topography and management. In order to design a land rating system (LRS), specific characteristic values were cataloged per quality and per berry. Characteristic values were assigned to a land rating system where S1 (highly suitable), S2 (moderately suitable), S3 (marginally suitable), N1 (currently not suitable) and N2 (not suitable). To test the LRS, a real, but non-representative resource assessment (RA) took place. The RA revealed the further need to incorporate land limits into site selection. QCs’ and land limit data was collected from existing sources and measured in situ where the data was insufficient. Finally the RA data was applied to the LRS through the process of matching. The matching precipitated the formation of a site selection process or tool, presented on tables. Each table represents a land quality. Water and soil criteria varied per berry, while topography, water and management were common to all three berries. Additionally, the site selection tool enabled the assessment of secondary QCs’. The assessment process is conservative, allocating the lowest land rating as the overall rating. This allows for the land user to address the most limiting factor from worst to least, thereby ensuring sustainable and good land use.Dissertation (MInstAgrar (Land-Use Planning))--University of Pretoria, 2008.
Plant Production and Soil Science
unrestricted
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Kirkpatrick, Emma. "Modeling the Suitability of Landscapes for Managed Honeybees - A Case Study in the Northern Great Plains." Miami University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=miami1437147684.
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PAL, CHANDRIMA. "IMPROVING CONVENTIONAL SUBDIVISION DESIGN BY INCORPORATING RUNOFF IMPACT IN LAND DEVELOPMENT DECISIONS." University of Cincinnati / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1132110371.
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Tims, Willem. "GIS model for the Land Use and Development Master Plan in Rwanda." Thesis, University of Gävle, Ämnesavdelningen för samhällsbyggnad, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-4975.
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This thesis was aimed at the development of a Geographical Information System (GIS) based model to support the Rwanda Land Use and Development Master Plan. Developing sustainable land management is the main task of this master plan. Stakeholder’s involvement was of key importance. Their demands should be analysed and visualised to support discussions and the decision-making process. Spatial Multicriteria Decision Analysis (MCDA) is a proven method for land-use planning purposes. However, most land-use planning applications focus on a specific theme, such as urban development. In addition, land-use planning is often limited to a relatively small area. This thesis focused at the development of a countrywide GIS model, containing all land-uses accommodated in three main land-use categories: urban, agriculture and conservation. The GIS model was largely based on the Land-Use Conflict Identification Strategy (LUCIS) model. Many of the goals, objectives, and subobjectives that described the earlier mentioned land-use categories were adopted from the original model. However, a significant number of them were dropped, and new were created to suit the Rwandan situation. Stakeholder’s involvement was realized by assigning weights to the goals and preference maps. The Analytical Hierarchy Process (AHP) was used as weighting method. ESRI’s ArcGIS ModelBuilder was used to give the model shape in the GIS. Firstly, suitability maps were created of all elements in the model. The suitability maps were then transformed into preference maps by weighting them. In the next step the preference maps were collapsed in three classes: low, medium and high preference. Finally, the preference maps of the three land-use categories were combined, in order to visualize conflict areas. Ortho photos proved to be useful when acting as reference for the suitability and preference maps. Despite a large number of missing datasets, the GIS model was executed to simplify the understanding. However, many of the obtained results were unreliable because of the incompleteness of datasets, and can therefore not be used for decision-making. Unfortunately, due to the stage of the project it was not possible to obtain weights from the stakeholders, and should therefore be done when the time is right. Right Choice DSS, a very user-friendly decision support application, was proposed to use for calculating weights. To conclude, the developed GIS model integrated countrywide land-use suitability mapping and stakeholders’ wishes that can be used for discussions and decision making.
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Cilliers, Dirk Petrus. "The development and use of a land-use suitability model in spatial planning in South Africa / D.P. Cilliers." Thesis, North-West University, 2010. http://hdl.handle.net/10394/4703.
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The United Nations (UN, 2006) predicts that 61 % of the world population (approximately 4.9 billion people) will be living in urban settlements by the year 2030. It is further anticipated that most of this urbanization will take place in developing countries, and more specifically in Africa. This is most likely due to the fact that most African countries are currently in an urban transition phase, as they are systematically changing from predominantly rural societies to predominantly urban societies. Urban growth is a definite reality and poses a threat to the natural environment around urban areas, and in effect also to urban sustainability. To assist planners and governments in effectively planning for urban growth and to ensure sustainable development, they need optimal decision support systems to aid them in the development of land-use management policies and spatial development plans. It is crucial that these support systems be comprehensive, to encourage sustainable development in a proactive manner. One way to assist planners and governments in this crucial task, is by providing them with land-use suitability and urban growth scenarios, which may assist them in the development of spatial development frameworks (SDF) and policies. Although a great deal of research has been done internationally on urban growth modelling, it is poorly researched in South Africa. This study employs a multiple-criteria approach to analyse land-use conflicts as well as land-use suitability via a Geographical Information System-based weighted overlay procedure. The analysis takes three competing land-uses (urban, agriculture and conservation) into consideration, in an attempt to identify the most suitable land available for each land-use. The results are ultimately used as inputs for urban growth modelling. A successful urban growth scenario was achieved for the city of Potchefstroom, North West, South Africa for the year 2030. The study showed that a fairly uncomplicated approach to urban growth modelling is possible with readily available data in South Africa and that such an approach has value for spatial planning purposes.Thesis (M.Art. et Scien. (Town and Regional Planning))--North-West University, Potchefstroom Campus, 2010.
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Alves, Helena Maria Ramos. "Quantitative land suitability evaluation using readily available data sources : a case study of maize in Minas Gerais, Brazil." Thesis, University of Reading, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.335886.
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Mohamed, Hamad O. "Land suitability evaluation, improving accuracy of assessments with a new paradigm based on geostatistical estimation and fuzzy set theory." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0015/MQ57975.pdf.
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Elaalem, Mukhtar. "The application of land evaluation techniques in Jeffara Plain in Libya using fuzzy methods." Thesis, University of Leicester, 2010. http://hdl.handle.net/2381/8918.
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This research compares three approaches to land suitability evaluation, Boolean, Fuzzy AHP and Ideal Point, for barley, wheat and maize crops in the north-western region of Jeffara Plain in Libya. A number of soil and landscape criteria were identified to accommodate the three cash crops under irrigation conditions and their weights specified as a result of discussions with local experts. The findings emphasised that soil factors represented the most sensitive criteria affecting all the crops considered. In contrast, erosion and slope were found to be less important in the study area. Using Boolean logic the results indicated only four suitability classes (highly suitable, moderately suitable, marginally suitable and currently not suitable) for all crops. In contrast, the results obtained by adopting the Fuzzy AHP and Ideal Point approaches revealed that the area of study has a greater degree of subdivision in land suitability classes. Overall, the results of the three approaches indicated that the area under consideration has a good potential to produce barley, wheat and maize under irrigation provided that the water and drainage requirements are met. Comparing the three models showed that each suitability class derived from the Boolean approach is associated with low and high values for joint membership functions when derived from Fuzzy AHP and Ideal Point approaches respectively. In other words, the two fuzzy approaches have shown their ability to explore the uncertainties associated with describing the land properties. The richer overall picture provides an alternative type of land suitability evaluation to Boolean approaches and allows subtle variations in land suitability to be explored. The Fuzzy AHP approach was found to be better than the Ideal Point approach; the latter was biased towards positive and negative ideal values. In the future, field trial plots will be needed to evaluate and validate the results further.
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Gayer, Christoph [Verfasser], and Martin [Akademischer Betreuer] Dieterich. "Suitability of conventional flowering fields and organic lentil mixed-crops to promote biodiversity on arable land / Christoph Gayer ; Betreuer: Martin Dieterich." Hohenheim : Kommunikations-, Informations- und Medienzentrum der Universität Hohenheim, 2020. http://d-nb.info/1223981924/34.
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Santos, Diléia Santana dos. "Adaptação da agricultira familiar à aptidão física das terras: distribuição geográfica e fatores determinantes." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/91/91131/tde-16042015-112003/.
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A Agricultura Familiar brasileira constitui uma categoria diversificada e heterogênea que congrega um conjunto plural de detentores de posse da pequena e média propriedade e que produz parte significativa dos alimentos que vão à mesa das pessoas. A agricultura familiar normalmente concentra-se em locais de maior incidência de pobreza rural e em terras de baixo potencial produtivo, que por vezes, apresenta alto valor para a conservação. Essas características conferem uma capacidade de adaptação dos sistemas de produção familiares frente às restrições do meio físico. Esse contexto faz com que a agricultura familiar torne-se o foco do desenvolvimento de políticas públicas específicas e de estudos acadêmicos e institucionais. O objetivo desse trabalho foi analisar as principais características intrínsecas e extrínsecas da agricultura familiar através de avaliações das dinâmicas estabelecidas em torno da produtividade e do melhor aproveitamento das condições do meio físico. Primeiramente, fizemos um levantamento dessas características de interesse, mobilizando dados oficiais e de livre acesso, avaliando a correlação entre as variáveis através de estatística multivariada, nos seguintes contextos territoriais: nacional, regionais e estaduais. Posteriormente, avaliamos uma proposta de classificação territorial da agricultura familiar que se baseia na resposta produtiva às diferentes condições do meio físico, analisando a distribuição das características em cada classe produtiva. Nesta etapa, os valores municipais de produtividade (R$.ha-1) foram correlacionados com os valores de aptidão física das terras nos três contextos estudados (Estados, Grandes Regiões e Brasil), o que propiciou a classificação dos municípios em quatro classes: Alto desempenho, Baixo desempenho, Adaptado e Pouco Adaptado. As características da agricultura familiar em cada classe foram submetidas à Análise de Componentes Principais e à Análise de Variância com teste de comparação entre as médias. Os resultados mostraram que o método de classificação foi efetivo nos três contextos territoriais estudados, sugerindo que as políticas públicas de fortalecimento da agricultura familiar são de grande importância para a relativização das limitações do meio físico. E ainda, os fatores relacionados ao melhor aproveitamento das terras disponíveis, a inserção destas políticas em municípios mais desenvolvidos, com oferta efetivas de trabalhos fora das propriedades fomentam o melhor desempenho e adaptação produtiva na maioria dos contextos territoriais estudados.The Brazilian small scale \"Family Farming\" (ScFF) is a diverse and heterogeneous category that brings together a plural set of small and medium property ownership holders and produces significant part of the food available to table the people. ScFF usually focuses on sites with the highest incidence of rural poverty and low productive potential lands, which sometimes has a high conservation value. These characteristics confer adaptability of family production systems facing the constraints of the physical environment. This context makes the ScFF become the focus of development of specific public policies and academic and institutional studies. The aim of this work was to analyze the main intrinsic and extrinsic characteristics of ScFF through the assessment of the dynamics established around productivity and better performance in restricted environments. First, we conducted a survey of these features of interest, using official and free access data, evaluating the correlation between the variables through multivariate analysis in the following territorial contexts: national, regional and state. Subsequently, we evaluated a proposal for territorial classification of ScFF, which is based on the productive response to different conditions of the environment, analyzing the distribution of ScFF characteristics inserted in each productive class. In this step, the municipal productivity values (R$ .ha-1) were correlated with physical performance values of land in the three contexts studied (National, Major Regions and Brazil), which provided the classification of municipalities into four classes: High Performance, Low performance, adapted and Less Adapted. The characteristics of ScFF in each class were subjected to principal component analysis and analysis of variance followed by comparison tests between the means. Results showed that the method was effective in rating the three territorial contexts studied, suggesting that public policies for strengthening ScFF are of great importance to the relativization of the limitations of the physical environment. It also indicates that the factors related to better use of the land available and the inclusion of such policies in most developed municipalities, with effective job offers outside the property, could promote better performance and yield adaptation in most territorial contexts studied.
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Huynh, Van-Chuong. "Multi-criteria land suitability evaluation for selected fruit crops in hilly region of Central Vietnam with case studies in Thua Thien Hue province." Aachen Shaker, 2007. http://d-nb.info/99056763X/04.
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Naidoo, Krishnaveni. "Testing the suitability of local seaweeds and formulated feed as a food source for abalone (Haliotis midae Linnaeus) in an Integrated Land-based Aquaculture System." Thesis, Online Access, 2008. http://etd.uwc.ac.za/usrfiles/modules/etd/docs/etd_gen8Srv25Nme4_9129_1263510405.pdf.
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Huynh, Van Chuong [Verfasser]. "Multi-criteria Land Suitability Evaluation for Selected Fruit Crops in Hilly Region of Central Vietnam : With case studies in Thua Thien Hue province / Van Chuong Huynh." Aachen : Shaker, 2008. http://d-nb.info/1164341669/34.
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Huynh, Van-Chuong [Verfasser]. "Multi-criteria Land Suitability Evaluation for Selected Fruit Crops in Hilly Region of Central Vietnam : With case studies in Thua Thien Hue province / Van Chuong Huynh." Aachen : Shaker, 2008. http://nbn-resolving.de/urn:nbn:de:101:1-2018081206233576275616.
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Nguyen, Huu Kiet [Verfasser], Nguyen Xuan [Akademischer Betreuer] Thinh, and Ralf [Gutachter] Bill. "Combination between land suitability evaluation and multi-objective optimization mathematics model to sustainable agricultural land use planning in the coastal zone of the Mekong Delta, Viet Nam / Huu Kiet Nguyen ; Gutachter: Ralf Bill ; Betreuer: Nguyen Xuan Thinh." Dortmund : Universitätsbibliothek Dortmund, 2019. http://d-nb.info/1188568019/34.
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Murekatete, Rachel Mundeli. "An Analysis of Consequences of Land Evaluation and Path Optimization." Licentiate thesis, KTH, Geoinformatik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-235687.
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Planners who are involved in locational decision making often use raster-based geographic information systems (GIS) to quantify the value of land in terms of suitability or cost for a certain use. From a computational point of view, this process can be seen as a transformation of one or more sets of values associated with a grid of cells into another set of such values through a function reflecting one or more criteria. While it is generally anticipated that different transformations lead to different ‘best’ locations, little has been known on how such differences arise (or do not arise). Examples of such spatial decision problems can be easily found in the literature and many of them concern the selection of a set of cells (to which the land use under consideration is allocated) from a raster surface of suitability or cost depending on context. To facilitate GIS’s algorithmic approach, it is often assumed that the quality of the set of cells can be evaluated as a whole by the sum of their cell values. The validity of this assumption must be questioned, however, if those values are measured on a scale that does not permit arithmetic operations. Ordinal scale of measurement in Stevens’s typology is one such example. A question naturally arises: is there a more mathematically sound and consistent approach to evaluating the quality of a path when the quality of each cell of the given grid is measured on an ordinal scale? The thesis attempts to answer the questions highlighted above in the context of path planning through a series of computational experiments using a number of random landscape grids with a variety of spatial and non-spatial structures. In the first set of experiments, we generated least-cost paths on a number of cost grids transformed from the landscape grids using a variety of transformation parameters and analyzed the locations and (weighted) lengths of those paths. Results show that the same pair of terminal cells may well be connected by different least-cost paths on different cost grids though derived from the same landscape grid and that the variation among those paths is affected by how given values are distributed in the landscape grid as well as by how derived values are distributed in the cost grids. Most significantly, the variation tends to be smaller when the landscape grid contains more distinct patches of cells potentially attracting or distracting cost-saving passage or when the cost grid contains a smaller number of low-cost cells. The second set of experiments aims to compare two optimization models, minisum and minimax (or maximin) path models, which aggregate the values of the cells associated with a path using the sum function and the maximum (or minimum) function, respectively. Results suggest that the minisum path model is effective if the path search can be translated into the conventional least-cost path problem, which aims to find a path with the minimum cost-weighted length between two terminuses on a ratio-scaled raster cost surface, but the minimax (or maximin) path model is mathematically sounder if the cost values are measured on an ordinal scale and practically useful if the problem is concerned not with the minimization of cost but with the maximization of some desirable condition such as suitability.Planerare som arbetar bland annat med att fatta beslut som hänsyftar till vissa lokaler använder ofta rasterbaserade geografiska informationssystem (GIS) för att sätta ett värde på marken med avseende på lämplighet eller kostnad för en viss användning. Ur en beräkningssynpunkt kan denna process ses som en transformation av en eller flera uppsättningar värden associerade med ett rutnät av celler till en annan uppsättning sådana värden genom en funktion som återspeglar ett eller flera kriterier. Medan det generellt förväntas att olika omvandlingar leder till olika "bästa" platser, har lite varit känt om hur sådana skillnader uppstår (eller inte uppstår). Exempel på sådana rumsliga beslutsproblem kan lätt hittas i litteraturen och många av dem handlar om valet av en uppsättning celler (som markanvändningen övervägs tilldelas) från en rasteryta av lämplighet eller kostnad beroende på kontext. För att underlätta GISs algoritmiska tillvägagångssätt antas det ofta att kvaliteten på uppsättningen av celler kan utvärderas som helhet genom summan av deras cellvärden. Giltigheten av detta antagande måste emellertid ifrågasättas om dessa värden mäts på en skala som inte tillåter aritmetiska transformationer. Användning av ordinal skala enligt Stevens typologi är ett exempel av detta. En fråga uppstår naturligt: Finns det ett mer matematiskt sunt och konsekvent tillvägagångssätt för att utvärdera kvaliteten på en rutt när kvaliteten på varje cell i det givna rutnätet mäts med ordinalskala? Avhandlingen försöker svara på ovanstående frågor i samband med ruttplanering genom en serie beräkningsexperiment med hjälp av ett antal slumpmässigt genererade landskapsnät med en rad olika rumsliga och icke-rumsliga strukturer. I den första uppsättningen experiment genererade vi minsta-kostnad rutter på ett antal kostnadsnät som transformerats från landskapsnätverket med hjälp av en mängd olika transformationsparametrar, och analyserade lägen och de (viktade) längderna för dessa rutter. Resultaten visar att samma par ändpunkter mycket väl kan vara sammanbundna med olika minsta-kostnad banor på olika kostnadsraster härledda från samma landskapsraster, och att variationen mellan dessa banor påverkas av hur givna värden fördelas i landskapsrastret såväl som av hur härledda värden fördelas i kostnadsrastret. Mest signifikant är att variationen tenderar att vara mindre när landskapsrastret innehåller mer distinkta grupper av celler som potentiellt lockar eller distraherar kostnadsbesparande passage, eller när kostnadsrastret innehåller ett mindre antal låg-kostnad celler. Den andra uppsättningen experiment syftar till att jämföra två optimeringsmodeller, minisum och minimax (eller maximin) sökmodeller, vilka sammanställer värdena för cellerna som är associerade med en sökväg med summanfunktionen respektive maximum (eller minimum) funktionen. Resultaten tyder på att minisumbanemodellen är effektiv om sökningen av sökvägen kan översättas till det konventionella minsta kostnadsproblemet, vilket syftar till att hitta en väg med den minsta kostnadsvägda längden mellan två terminaler på en ratio-skalad rasterkostyta, men minimax (eller maximin) banmodellen är matematiskt sundare om kostnadsvärdena mäts i ordinär skala och praktiskt användbar om problemet inte bara avser minimering av kostnad men samtidigt maximering av någon önskvärd egenskap såsom lämplighet.
QC 20181002
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Manyevere, Alen. "An integrated approach for the delineation of arable land and its cropping suitability under variable soil and climatic conditions in the Nkonkobe municipality, Eastern Cape, South Africa." Thesis, University of Fort Hare, 2014. http://hdl.handle.net/10353/d1019856.
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Arable crop production in Nkonkobe Municipality is low due to abandonment of potentially productive land and low productivity of the cultivated land. Little attention has been given to farmers perspectives with regards to crop production and land abandonment. Understanding the relationships of indigenous knowledge systems, where local approaches to soil classification, appraisal, use and management and land evaluation, and scientific approaches could be important for the effective use of available soil resources while avoiding those resources that are vulnerable to degradation. In addition, the interactions between soil factors and climate could be useful in understanding the erodibility of soils. The intergration of scientific research and indigenous knowledge systems could help in the identification and delineation of high potential land and on crop suitability evaluation. The objectives of the study were: (i) to determine farmers‟ perspectives with regards to land utilisation and abandonment, constraints on crop production and crop preferences, (ii) to integrate and compare indigenous knowledge systems with scientific approaches of soil classification and potential, (iii) to determine the effect of climate and soil factors on erodibilities of soils in the Municipality (iv) to delineate arable land and evaluate its suitability for maize, potato, sorghum and cowpea under rainfed agriculture. Using semi-structured and open-ended interviews, information on limitations to crop production, cropping preferences, indigenous soil classifications, cropping potential ratings and erosion was captured. Descriptive and correlation statistics were used to analyse farmers‟ responses. The information was later used for a pilot participatory mapping and the determination of the agricultural potential of the soils in three selected villages of the Municipality. Field boundaries of soil texture, colour, depth, and slope position were captured using global positioning systems (GPS). The relationship between the degree of erosion and soil and slope factors was analysed by step-wise regression. Crop suitability for rainfed agriculture was done using the FAO guidelines for Land evaluation for rainfed agriculture. The spatially referenced crop suitability classes were produced by applying the Law of Limiting Combinationusing GIS Boolean Logic. The major biophysical factors, affecting crop production and land utilisation were soil degradation and low and erratic rainfall, while other factors included lack of farming equipment and security concerns. Maize, spinach and cabbage were the main crops grown, with maize sorghum and wheat the most abandoned crops. While it was difficult to accurately correlate indigenous classification with international scientific classification, the importance of colour, texture and soil depth for both classification and soil potential, suggests that some form of correlation is possible which enabled communication and other extension information to be conveyed. The shallow and stony soil (urhete) correlated well with the Leptosols in World Reference Base (WRB) or Mispah and shallow Glenrosa soils in the South African system. The red structured clays (umhlaba obomvu) matched the Nitisols in WRB or Shortlands in the South African system. The non-swelling black clayey soils (umhlaba omnyama) matched soils with melanic A horizons in both the WRB and South African soil classification systems. The dongwe and santi soils developed in alluvial sediments belonged to the Dundee, Oakleaf or Augrabies soils in the South African classification system and fluvisols or Cambisols in the WRB system. There was good agreement between farmers assessment of the cropping potential and scientific approaches but scientifically high potential red soils were rated lowly by the farmers due to difficulties in management caused by shortages of farm machinery, especially under dryland farming. Overall, the soil factors affecting erosion were influenced largely by climate, while parent material was also important. Climate had a dominant influence on soil factors most notably fine sand and very fine sand fractions and exchangeable sodium percentage being more important on soil forms occurring in arid and semi-arid climate and less in the sub-humid and humid areas, where clay mineralogy, particularly kaolinite and sesquioxide dominated. Dolerite derived soils were the most stable and should be given the highest priority for cropping development while mudstone and shale derived soils had a lower cropping potential. While slope gradient and length had some effect on soil erosion in arid and semi arid environments its influence was generally overshadowed by soil factors especially in humid zones. Cow pea and sorghum were the most adapted crops in the region while potato and maize were marginally suitable under rainfed agriculture. The study revealed that most adapted crops were not necessarily the most preferred crops by the farmers. A small percentage of the land was delineated as arable and therefore optimisation of this available land should be prioritized.
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Teramoto, Edson Roberto. "Avaliação e aplicação de modelos de estimativa de produção de cana-de-açúcar (Saccharum spp) baseados em parâmetros do solo e do clima." Universidade de São Paulo, 2003. http://www.teses.usp.br/teses/disponiveis/11/11136/tde-20052003-140139/.
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Foram avaliados dois modelos para estimativa do potencial produtivo relativo de cana-de-açúcar. Utilizou-se dados de produtividade (t.ha -1 ) de experimentos, dados de campo da Usina Santa Rita, localizado no município de Santa Rita do Passa Quatro e das áreas de cana-de-açúcar da Usina Costa Pinto em Piracicaba, todas localizadas no Estado de São Paulo, Brasil, para realizar uma comparação entre a produtividade obtida em campo e a produtividade relativa (% da máxima produtividade) estimada pelo modelo matemático. As variáveis de entrada são o fósforo (P, mmolc/kg), potássio (K, mmolc/kg), capacidade de troca de cátions (T, mmolc/kg), saturação por bases (V%) e o teor de argila (Arg%). As avaliações mostraram que o modelo estimou de forma eficiente a produtividade relativa de cana-de-açúcar, com relações altamente significativas (P<0,001) entre produtividade medida no campo e produtividade relativa estimada. Verificou-se que o modelo ganha precisão quando se trabalha em escalas maiores (dados experimentais) em comparação com escalas menores (grandes fazendas). Uma análise de regressão linear múltipla, pelo método stepwise, foi utilizada para verificar quais foram os fatores que influenciaram a produtividade da cana-de-açúcar nos diferentes anos. Verificou-se forte influencia do número de cortes e das variedades, entretanto notou-se que as variáveis do solo utilizados como variáveis de entrada (P,K,T,V,Arg) nem sempre influenciaram a produtividade nos diferentes anos. Constatou-se então que as ferramentas estatísticas podem ser limitadas para elaboração de modelos. Consequentemente o modelo mostrou-se uma ferramenta útil para identificação da capacidade produtiva de áreas para a cana-de-açúcar de maneira holística e integrada em comparação aos métodos estatísticos. O modelo foi aplicado, numa escala regional, no o município de Piracicaba. Através de um sistema de informações geográficas (SIG) foram gerados um mapa de declividade, mapa de distância em relação a 4 usinas da região e uma mapa de produtividade relativa. Os mapas foram úteis na identificação da distribuição espacial da cana-de-açúcar no município. Utilizou-se o modelo climático da FAO para simular a produtividade da cana-de-açúcar mês a mês durante um ano. O mesmo não apresentou correlação com a produtividade média mensal obtida. Este modelo foi concebido para estudos em dimensões continentais com regiões climaticamente contrastantes. Em escala local se mostrou muito sensível ao déficit hídrico para estimar a produtividade da cana-de-açúcar adequado para realizar estimativas, principalmente porque esta cultura é tolerante a períodos de stress hídricos.Two models of sugarcane were evaluated. The yield (t/ha) out of experimental data, and from fields of the Santa Rita Sugar Mill, located at Santa Rita do Passa Quatro, and from large farms of the Costa Pinto Sugar Mill, located at Piracicaba, all in the State of São Paulo Brazil were compared to the estimated relative yield (% of the maximum yield) by a mathematical model having as input the soil fertility parameters: potassium content (K, in mol/kg), phosphorus content (P, in mol/kg), cation exchange capacity (T, in mol/kg), base saturation (V, in %) and clay content (Arg, in %), by linear regression. The high significance of the regressions (P<0,001) showed a closed relation between estimated and measured yield. The model gain precision with bigger scales (experimental data) compared to the smaller scales (larger farms). A linear multiple regression statistical analysis, by the stepwise method, were applied to select the soil parameter which most affected the yield. The ratton number and the sugarcane variety were the most important factors determining yield, overcoming the soil fertility parameters which not always affected yield according to this analysis. Consequently, the model was a better tool to identify soil capability for sugarcane yield, in a holistic and integrated manner, than the statistical analysis. The soil model to estimated relative yield were applied tin the regional scale on the Piracicaba county to generate maps of the distance of sugarcane field to the sugar mills, relative sugarcane yield of the fields, and land slopes of the sugarcane fields. The maps were useful to elucidate the sugarcane distribution within the county. An estimation of yield by the FAO model, using weather data as input parameters, showed a large month to month yield variation in discrepancy to the field observations. No significance regressions demonstrated that the yield estimated by FAO model is not related to the field data. This model was created for studies at continental level with contrasting weather differences, but is too sensitive for the water deficit to estimate sugarcane yield at local and regional scale, mainly because this crop is particularly tolerant do periodic water stress.
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Mojica, Bonilla Ana I. "Assessing Urban Containment Policies for Managing the Urban Growth of Santa Tecla City, El Salvador." Ohio University / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1195154675.
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Pires, Tiago Brochado. "O uso e aptidão das terras agrícolas no Brasil; uma análise comparativa de 1940 a 2006." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/11/11140/tde-06102014-084628/.
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A dinâmica da ocupação agrícola foi extensivamente modificando a cobertura da terra, o que possibilitou avanços socioeconômicos, mas também permitiu a fragilização estrutural dos ecossistemas naturais. No Brasil esta dinâmica se intensifica a partir dos anos 40, período este em que as tecnologias industriais foram incorporadas pela atividade agropecuária. Com as técnicas do Sistema de Informação Geográfica (SIG) e os princípios de modelagem da aptidão do uso das terras, foi possível recriar o uso histórico das terras agrícolas e analisar que ele tem evoluído em direção às regiões consideradas mais aptas para esta atividade. No entanto, este processo foi desigual entre as coberturas de lavouras e pastagens e entre as regiões brasileiras. Estas distorções são consequências do baixo uso tecnológico nas pastagens e de políticas de ocupação mal planejadas, não antevendo os impactos da ocupação em áreas inadequadas. Com estas conclusões será possível repensar o planejamento do uso da terra, incorporando a modelagem da aptidão e garantindo a sustentabilidade na agricultura.The dynamics of agricultural occupation was extensively modifying the land cover which allowed socioeconomic advances, but also allowed the structural fragility of natural ecosystems. In Brazil this dynamic was evident from the \'40s, a period where industrial technologies were incorporated by farming. With the techniques of Geographic Information System (GIS) and modeling principles of land suitability, it was possible to recreate this dynamic since 1940 and analyze what it has evolved towards the areas considered most suitable for this practice. However, this process has been uneven across the covers of crops and pastures and between regions. These distortions are consequences of low technology use in pastures and poorly planned policies of occupation, not anticipating the impact of the occupation in unsuitable areas. It is hoped that with these findings it is possible to rethink the planning of land use, incorporating fitness modeling and ensuring sustainability in agriculture.
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Mehari, Amanuel. "Growth and suitability of some tree species selected for planting in adverse environments in Eritrea and Ethiopia /." Uppsala : Dept. of Crop Production Ecology, Swedish University of Agricultural Sciences, 2005. http://epsilon.slu.se/200591.pdf.
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Van, Niekerk Adriaan. "CLUES : a web-based land use expert system for the Western Cape." Thesis, Link to the online version, 2008. http://hdl.handle.net/10019.1/1360.
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Pereira, Carlos Miguel Ferreira. "Estudo da variabilidade espacial da aptidão das terras para o grão-de-bico (Cicer arietinum L.) numa zona do Alentejo, como ferramenta de apoio à decisão." Master's thesis, Universidade de Évora, 2016. http://hdl.handle.net/10174/18254.
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O grão-de-bico (Cicer arietinum L.) é uma das culturas proteaginosa mais importantes do mundo, desempenhando um papel importante na alimentação humana, como suplemento das necessidades em proteína vegetal.
O presente estudo tem como objetivo o desenvolvimento de uma metodologia para a definição de zonas de aptidão, em função das características físicas e químicas do solo, das disponibilidades hídricas para as diferentes fases do ciclo fenológico e das formas de relevo para a cultura de Outono/Inverno em regime de sequeiro. A metodologia foi implementada em ambiente Sistema de Informação Geográfica (SIG) permitindo a produção de cartografia. Esta é uma ferramenta de gestão permitindo a seleção de zonas mais adaptadas à cultura.
Da aplicação da metodologia verificou-se que as maiores limitações edafo-climáticas estão relacionadas com profundidade e capacidade de retenção de água do solo; ABSTRACT:
Study of the spatial variability of land suitability for chickpea (Cicer arietinum L.) in an region in Alentejo, as a decision support tool
The chickpea (Cicer arietinum L.) is one of the most important protein crop in the world. It plays an important role in human nutrition, as a supplement to the needs of vegetable protein. The objective of this study was the development of a methodology for the definition of land suitability areas, as fuction of the physical and chemical characteristics of the soil, hydric availability for the different cultural phenological phases and land forms.
The methodology was implemented in a Geographical Information System (GIS) with map production. This is a management tool allowing the selection of the most suited areas for the culture.
Main edaphoclimatic limitations were related with depth and water retention of the soil.
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Li, Xi. "Use of LiDAR in Object-based Classification to Characterize Brownfields for Green Space Conversion in Toledo." University of Toledo / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1493417634359152.
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Vuso, Solly. "Modelling and mapping the suitability of land for crop production using a combination of GIS and remote sensing in the Eastern Cape: a case study of Mbashe and Mquma local municipalities-South Africa." Thesis, University of Fort Hare, 2012. http://hdl.handle.net/10353/d1019872.
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In order to achieve sustainable agriculture, decision makers require appropriate and fully detailed spatial information on land resources. Crop-land suitability analysis is a prerequisite to achieve optimum utilization of the available land resources for sustainable agriculture rural production (T.R. Nisar Ahamed et al., 2000). It is indeed of paramount importance to identify suitable land for cropping while causing minimum impact to the environment. The Food and Agriculture Organization (FAO, 1976), recommended an approach of land suitability evaluation for crops in terms of suitable land based on climatic and terrain data and soil properties. In this study, an attempt was made to identify suitable areas for massive crop production using remote sensing and GIS methodologies and the knowledge from extension officers. The primary method aims at generating land cover data using SPOT 5 satellite imagery and modeling with the existing land capability. The research purpose was to map the map the number hectares suitable areas for crop production number hectares suitable areas for crop production number hectares suitable areas for crop production number hectares suitable areas for crop production. Spatial modeling techniques were utilized to model land suitability model in an effective and efficiently way. The spatial modeling extension from ESRI product was used to model the crop suitability areas. The model run on ArcGIS platform and due to the fact that modeling only uses raster formats, all the data sets were projected and converted to raster format. The weighted overlay model was used to create land suitability map. The model results revealed that 4046251.79 hectares were suitable for cropping in the study area. The final outputs of suitable areas were calculated and each ward was given a value of suitable area as well as unsuitable area. The validation of the final maps compliments the 500 000 hectares that were mapped by Dept of Agriculture EC using 8% slope as the best potential areas. The method provides a cheap, effective and efficient way to map suitable areas over a large area and it also uses remote sensing data. It is hoped that decision makers will make use of the information produced in this paper as the whole world is in crisis of food security.
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Silva, Rafael Rodrigues da. "Avaliação sócio-ambiental do uso de efluente de esgoto tratado na irrigação de culturas no Município de Lins - SP." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/11/11140/tde-01102008-152158/.
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Em todo o mundo, existe uma crescente competição pelo uso de água entre os diversos setores da sociedade. A agricultura é uma grande consumidora do total de água doce disponível. Neste contexto, é desejável uma realocação dos recursos hídricos usados na agricultura para outros setores, tais como o abastecimento público. Desde que realizada de forma controlada, a irrigação com efluentes de estação de tratamento de esgoto (EETE) é altamente atrativa, pois além de possibilitar a liberação de recursos hídricos de melhor qualidade para outras atividades humanas, serve como uma forma de tratamento complementar do efluente, fornecendo ainda água e nutrientes essenciais aos cultivos agrícolas. No entanto, o uso sustentável dos EETEs na agricultura depende não apenas dos aspectos químicos, físicos e biológicos do sistema soloplanta- água, como também de aspectos sócio-econômicos. Assim, o presente trabalho teve por objetivo estudar os efeitos da irrigação com EETE no agrossistema, avaliando a aceitação da prática pelo proprietário rural e mapeando as áreas potencialmente irrigáveis com efluente no município de Lins. Dos 15 proprietários entrevistados, todos se mostraram favoráveis à prática e destinariam, ao menos uma parte da propriedade, para irrigação com o EETE. O fato do resíduo (efluente) originar-se do tratamento de esgoto urbano não influenciou a percepção dos agricultores quanto ao potencial de aproveitamento agrícola do efluente. O principal fator determinante da maior ou menor aceitação da prática diz respeito aos possíveis ganhos econômicos envolvidos (maior produtividade e menor despesa com fertilizantes minerais). Para os proprietários, o maior empecilho à adoção generalizada da prática corresponde aos custos envolvidos no transporte do efluente até as propriedades. Da área total do município de Lins, 73,42% estão cultivados com pastagens e cana-de-açúcar. Considerando-se as instruções técnicas utilizadas para a definição das áreas apropriadas para irrigação com efluente, existe no município um potencial de 112,9 km2 de áreas aptas, ou seja, 19,82% da área total do município passível de receber EETE via irrigação por aspersão. A inexistência de bases legais que regulamentem o uso deste subproduto, se apresenta como o principal fator limitante para a irrigação de culturas no município de Lins.Worldwide, there is an increasing competition for the use of water between different sectors of society. The agriculture is a major consumer of the total fresh water available. In this context, it is desirable a reallocation of water resources used in agriculture to other sectors, such as public supply. Since done in a controlled way, irrigation with effluent from sewage treatment plants (TSE) is highly attractive, enabling the release of better water quality sources for other human activities, serving as a complementary treatment of the effluent, also providing water and essential nutrients to agricultural crops. However, the sustainable agricultural use of TSE depends not only of chemical, physical and biological aspects of the soil-plant-water system, but also of socioeconomic aspects. Thus, this study aimed to investigate the effects of TSE irrigation in the agrosystem, evaluating the acceptance of the practice by the rural owners and mapping the potentially effluent irrigable areas in the city of Lins. Of the 15 rural owners interviewed, all were in favor of the practice and could reserve, at least a part of the property, for the irrigation with TSE. The fact that the waste (effluent) originates from the treatment of urban sewage has not influenced the perception of farmers about the potential agricultural use of the effluent. The main determining factor of greater or lesser acceptance of the practice relates to the possible economic gains involved (greater productivity and lower expenses with mineral fertilizers). For the rural owners, the biggest drawback to a widespread adoption of the practice corresponds to the costs involved in transporting the sewage to the properties. Of the total area of the municipal district of Lins, 73.42% are cultivated with grassland grass and sugarcane. Considering the technical instructions employed to define the suitable areas for effluent irrigation, there is a local potential of 112.9 km2 of suitable areas, or 19.82% of the total area of the municipality may receive STE via sprinkler irrigation. The lack of legal basis regulating the use of this byproduct represents the main restriction for the crops irrigation in the municipality of Lins.
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Poelking, Everton Luís. "Aptidão, evolução e conflitos de uso das terras no município de Itaara, RS." Universidade Federal de Santa Maria, 2007. http://repositorio.ufsm.br/handle/1/5608.
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The landscape is constantly altered by the man's action. The rational use of the natural resources and space it should be done in agreement with the natural vocation of the environment. For so much it is necessary the knowledge of the environmental attributes for a efficient planning of use. The purpose of this work was make the survey of the environmental attributes like soil, relief, landcovering and land use for monitoring as well as detection of problems related to use. Being used Geografic Information Sistems techniques in the generation of PIs of soils, steepness, APPs , land suitability and evolution of the land covering from 1987 to 2006, were identified the environmental attributes of the Itaara county, with use of satellite images and topographical maps. For the crossing of those PIs the map of use adaptation was elaborated for identification of land use conflicts. About 33,5% of the area of the Itaara county were found formed by Entisol, concentrated in the areas of larger steepness. Approximately 55% of their lands with restricted land suitability, being the remaining just for capable to forestry. It was verified that Itaara still preserves part of his original forest, mainly in the areas more slope and of more shallow soils. The total area with APPs in Itaara is 2929 ha. The land use of the farmers, along that period, was adapting to the adequate land suitability and the environmental legislation, protecting the areas of the plateau for agricultural activity. However some areas are being used with activities above his natural aptitude, mainly in places with accentuated steepness and shallow and stony soils, besides places destined to APPs, being explored with agriculture or pasture. The use of Geografic Information Sistem came as excellent tool to aid in the rising, organization, crossing and edition of the information regarding the environmental attributes in the generation of the adaptation proposal and detection of conflicts of lands coverA paisagem é constantemente alterada pela ação do homem. A utilização racional dos recursos naturais e do espaço deve ser feita de acordo com a vocação natural do ambiente. Para tanto é necessário o conhecimento dos atributos ambientais para um efetivo planejamento de utilização do espaço. Este trabalho teve o objetivo de levantamento dos atributos ambientais de solo, relevo, cobertura das terras e vocação de uso para monitoramento estabelecimento de problemas relacionados ao seu uso. Utilizando-se técnicas de geoprocessamento na geração dos PIs de solos, declividade, APPs, aptidão agrícola e evolução da cobertura das terras de 1987 a 2006, foram identificados os atributos ambientais do município, com auxilio de imagens de satélite, cartas topográficas e trabalho de campo e laboratório. Pelo cruzamento desses PIs foi elaborado o mapa de adequação de uso e identificados as áreas com conflitos de uso. Foram encontrados 33,5% da área do município formada por Neossolos Litólicos, concentrados nas áreas de maiores declividades. Aproximadamente 55% de suas terras com aptidão restrita à agricultura, sendo o restante apenas apto para silvicultura. Verificou-se que Itaara preserva ainda boa parte de sua cobertura florestal original, principalmente nas áreas mais declivosas e de solos mais rasos. As APPs no município de Itaara totalizaram 2929 ha. A utilização das terras por parte dos agricultores, ao longo desse período, foi se adequando à aptidão agrícola e a legislação ambiental, resguardando as áreas do planalto para atividade agrícola. No entanto algumas áreas estão sendo usadas com atividades acima de sua aptidão natural, principalmente em locais com declividade acentuada e solos rasos e pedregosos, além de locais destinados a APPs, sendo explorados com agricultura ou pastagem. O uso de geoprocessamento apresentou-se como excelente ferramenta para auxiliar no levantamento, organização, cruzamento e edição das informações referentes aos atributos ambientais na geração da proposta de adequação e detecção de conflitos de uso das terras
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Santos, Rodrigo Lima. "Dinâmica e qualidade ambiental urbana da paisagem no município de Imperatriz (MA)." Universidade Federal de Goiás, 2017. http://repositorio.bc.ufg.br/tede/handle/tede/8074.
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES
The cities come gradually being consolidated like the spaces par excellence of the human dwelling. Resulting from this fact, several processes appear, you were palpating and were not palpating, what most times are aligned, with the urbane space organization. This organization teases in there realizes the elements so much of natural order all that you structure and the dynamic processes. In this inquiry the next elements stand out: vegetable covering, areas of flood and flood, demographic density, verticalização, degree of urbanization, intensity of traffic and public spaces. The problematics concerns the relations established between the historical process of occupation of the city like influential factor in the scenery and in the environmental quality in urbane context. The delimited study area corresponds to the city limits of the Imperatriz - MA city her. Such a delimitation obeys the limits of the sectors censitários urbane when classified by the Instituto Brasileiro de Geografia e Estatística - IBGE in the demographic census of the 2010 year. Like objective elencou-se the possibility to understand the arrangement space-storm of the environmental quality of the city limits of the above-mentioned city. For so much they were considered, his process of occupation, the state of affairs of the urbane siege and the mapeamento of the urbane scenery in detail scale. The methodology includes the use of secondary data, originating from bibliographical inquiry, legislation and fountains censitárias, as well as primary data produced through products of sensoriamento remotely and when was prosecuted in Geographic Information Systems - GIS through analyses multicriterion. The results point to a process of intense occupation of this local authority, initially from 1960. Such a process, it takes place through periods, with predominance of economical activity, for which the effort happens in presenting a schematic synthesis. What concerns adequabilidade urbane, the data reveal a synthesis of what is today the urbane space of the Imperatriz - MA city her, their more impactante shows that nearly 12 % of the city new urbane occupations already presents the very degree of restriction to. As for the urbane environmental quality, the data show what Imperatriz, is situated in a belt of intermediary environmental quality, including equivalent to 66,58 km ² of his city limits. Already the values referring to good environmental quality in the extracts and bad, are respectively of 11,94 km ² and 14,13 km ². These numbers point to the necessity of there rethinks the urbane space, so that these elements already presented with intermediary environmental quality are not along next years, incorporated in the bad extract.
As cidades vêm gradativamente se consolidando como os espaços por excelência da moradia humana. Advindo desse fato, surgem diversos processos, palpáveis e não palpáveis, que na maioria das vezes estão alinhados, com a organização espacial urbana. Essa organização implica em perceber os elementos tanto de ordem natural quanto estruturais e os processos dinâmicos. Nesta pesquisa destacam-se os seguintes elementos: cobertura vegetal, áreas de inundação e enchente, densidade demográfica, verticalização, grau de urbanização, intensidade de tráfego e espaços públicos. A problemática diz respeito as relações estabelecidas entre o processo histórico de ocupação da cidade como fator influente na paisagem e na qualidade ambiental em contexto urbano. A área de estudo delimitada corresponde ao perímetro urbano da cidade de Imperatriz – MA. Tal delimitação obedece aos limites dos setores censitários urbanos classificados pelo Instituto Brasileira de Geografia e Estatística - IBGE no censo demográfico do ano 2010. Como objetivo elencou-se a possibilidade de compreender o arranjo espaço-temporal da qualidade ambiental do perímetro urbano da referida cidade. Para tanto foram considerados, o seu processo de ocupação, a conjuntura do sítio urbano e o mapeamento da paisagem urbana em escala de detalhe. A metodologia inclui a utilização de dados secundários, oriundos de pesquisa bibliográfica, legislações e fontes censitárias, bem como dados primários, produzidos por intermédio de produtos de sensoriamento remoto e processados em Sistemas de Informação Geográficas - SIG por meio de análises multicritério. Os resultados apontam para um processo de ocupação intensa deste município, inicialmente a partir de 1960. Tal processo, ocorre por meio de períodos, com predominância de atividade econômica, para o qual realiza-se o esforço em apresentar uma síntese esquemática. No que diz respeito a adequabilidade urbana, os dados revelam uma síntese do que é hoje o espaço urbano da cidade de Imperatriz – MA, o mais impactante deles mostra que cerca de 12% da cidade já apresenta grau máximo de restrição à novas ocupações urbanas. Quanto à qualidade ambiental urbana, os dados revelam que Imperatriz, situa-se em uma faixa de qualidade ambiental intermediária, englobando o equivalente a 66,58 km² de seu perímetro urbano. Já os valores referentes a qualidade ambiental nos extratos boa e ruim, são respectivamente de 11,94 km² e 14,13 km². Esses números apontam a necessidade de repensar o espaço urbano, para que esses elementos já apresentados com qualidade ambiental intermediária não sejam ao longo dos próximos anos, incorporadas no extrato ruim.
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Schetter, Timothy Andrew. "A Multiscale Spatial Analysis of Oak Openings Plant Diversity with Implications for Conservation and Management." Bowling Green State University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1334089503.
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Thyr, Erik. "Bostadsplanering i en mindre kommun : Lokalisering baserad på GIS-analys och Multikriterieanalys." Thesis, Högskolan i Gävle, Samhällsbyggnad, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-34259.
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In an ever-changing world as ours, the population increases rapidly. There will be great challenges for urban planning when it comes to finding effective, optimized and sustainable solutions. The city planners must find the most optimal way of land usage and one way of reaching this can be obtained through a land-suitability analysis. Land-suitability analysis can be described as a combination of both Geographic information system (GIS) and Multi-criteria analysis (MCA) and is used to obtain the most optimal position for a specific land usage, e.g. residential areas. GIS and MCA can both be used separately but can also be used as described in a combination. The aim of this study is to compare two different municipalities, Nordanstig and Sundsvall, and how the weighting of social functions in planning housing projects differs in them. Another purpose is to compare two different MCA weighting methods and how they affect the final results. The methods used were Analytical Hierarchical Process (AHP) and Fuzzy AHP (FAHP). Using the output of the poll and the interviews from the representatives of the two municipalities weights were computed. The purpose of the study is to find suitable locations where residential areas can be built. The result of the study shows that the officials ranked the weights of the social functions in a new residential area differently. The respondent from Sundsvall ranks public transportation as the most important factor, while the respondent from Nordanstig ranks larger road/railway the highest. The final results end up in the same urban areas in both AHP and Fuzzy AHP methods. The main differences between them are the sizes of the areas and their exact extents. The biggest area was achieved through Sundsvall’s FAHP weighting and was located in the urban area of Gnarp. The area was about 118.5 hectare in size. To check whether the results can be considered appropriate a sensitivity analysis has been performed, using inverted weights taken from the poll and the interviews.I en värld där befolkningen ökar kraftigt och är i ständig förändring, där ställs samhället och dess beslutsfattare inför stora utmaningar. En av dessa utmaningar är att planera samhällen på ett effektivt och optimerat sätt, som även innefattar hållbara lösningar. Med en strävan att på bästa sätt använda marken i staden, samhället och landet så kan en lämplighetsanalys användas. En lämplighetsanalys är en kombination av att använda Geografisk informationssystem (GIS) och multikriterieanalys (MKA) för att få fram den mest lämpliga platsen som för exempel ett bostadsområde. Både GIS och MKA är var för sig viktiga delar i samhället som även kan användas i kombination. Studiens syfte är att jämföra två kommuner, Nordanstig och Sundsvalls kommun, och deras olika viktning av samhällsfunktioner vid bostadsplanering. Det andra syftet är att jämföra hur två olika MKA metoder påverkar de slutliga resultaten. De två olika metoderna är Analytisk hierarkisk process (AHP) och Fuzzy AHP. Med hjälp av enkät och intervjuer av representanterna från kommunerna så tas vikter fram. De tillfrågade var tjänstemän från de två kommunerna, en från vardera kommunen. Målet med studien är att få fram områden där bostadsområden kan byggas, med hjälp av en multikriterieanalys. En bostadsplanering som tar in hållbarhets aspekter tidigt strävar mot att bidra till ett miljövänligare samhälle, aspekter som busshållplatser och park och fritid. Resultatet visar att de olika tjänstemännen rangordnar kriterierna olika på vad som är viktigast när det kommer till samhällsfunktioner i ett nytt bostadsområde. Representanten från Sundsvall rangordnar Kollektivtrafiken högst och representanten från Nordanstig rangordnar Större väg/järnväg högst. Slutresultatet visar att placering av bostadsområdet hamnar vid AHP metoden ungefär vid samma orter som vid Fuzzy AHP metoden. Det som skiljer är storleken på de olika områden och deras mer exakta utbredning. Det största området blir enligt Sundsvall viktning till FAHP och beläget i tätorten Gnarp, ytan blir då ca 118,5 ha stor. För att kontrollera om resultatet kan anses vara lämpligt har en känslighetsanalys gjorts, genom inverterade vikter tagna från enkäten och intervjuerna.
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Chen, Yi-Ching, and 陳怡靜. "Public Perception Based Land Use Suitability Assessment." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/fpdp93.
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碩士國立中興大學
園藝學系所
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Land use change is closely related to people''s daily life, so people often have clear reasons for the changes in land use in their surrounding living environment. However, previous studies have rarely explored the influencing factors of land use change from public perspectives. This study sets the land type as the starting point to issue questionnaires. The purpose is to understand the public''s relevant awareness of land change, including the selection of driving factors and their different influence; and to establish a land suitability assessment method based on the public opinion. In the awareness questionnaire, results show that the people have the highest degree of consent in the land use change in Changhua County in the past 20 years. On the contrary, they generally do not agree with the increase of forest land in Changhua County in the past two decades. The changes in the three of land use types, such as building land, useless land and dryland, imply a greater impact on production, life and ecology. After filtering by land users, there are 14 driving factors, which the people think that the distance from the urban planning area and land price fluctuation are the building land change factors. The annual rainfall and annual average temperature are the change factors of dryland. The main factor of paddy land is the annual rainfall. The change factor of forest land is the elevation and annual rainfall. The annual rainfall and flooding potential area are the change factors of water body. And the factor of useless land change is the distance from the urban planning area and the land redrawing area. Based on the weight of the factors selected by the people, the land suitability assessment was carried out, and the appropriate analysis results of each land use were integrated. It was found that the public''s perception and the overall status of the land in Changhua County in 2015 reached 95.64%, and the compliance degree of building land, dryland, paddy field, forest land, water body and useless land is 85.72%, 99.25%, 98.91%, 97.53%, 96.60%, and 97.81%.