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Journal articles on the topic 'Farm forestry. eng'

Author: Grafiati

Published: 4 June 2021

Last updated: 15 February 2022

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1

Iwanaga, Seiji, Dang Thai Hoang, Hirofumi Kuboyama, Dang Thai Duong, Hoang Huy Tuan, and Nguyen Van Minh. "Changes in the Vietnamese Timber Processing Industry: A Case of Quang Tri Province, North Central Region." Forests 12, no. 8 (2021): 984. http://dx.doi.org/10.3390/f12080984.

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Vietnam’s forestry policies have expanded the area of planted forests in order to meet the supply of raw materials for the timber processing industry. However, the diversity and volume of demand in the industry have also increased, and a shortage of raw materials can be assumed. For clarifying the correspondence of stakeholders, we explore changes in the resource supply behavior of forestry companies and procurement strategies of companies that manufacture lumber for glued laminated timber, medium density fiberboard (MDF) and wood pellets. Next, we discuss issues and future developments surrou

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Pešková, V., F. Soukup, and J. Landa. "Comparison of mycobiota of diverse aged spruce stands on former agricultural soil." Journal of Forest Science 55, No. 10 (2009): 452–60. http://dx.doi.org/10.17221/3/2009-jfs.

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The mycological conditions on study plots established in forests growing on former agricultural farm lands were studied. In young spruce stand (8–10 years) reduced and unstable spectrum of macromycetes was found. After approximately 50 years of forest growth the situation became stable and spectrum of macromycetes together with development of mycorrhizal status were similar to a situation found in stands on forest soils. Slightly increased occurrence of saproparasitic species of fungi (e.g. <I>Heterobasidion annosum</I> at others) was observed in older growths.

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Blaschke, Paul M., Noel A. Trustrum, and Douglas L. Hicks. "Impacts of mass movement erosion on land productivity: a review." Progress in Physical Geography: Earth and Environment 24, no. 1 (2000): 21–52. http://dx.doi.org/10.1177/030913330002400102.

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Wherever people gain their livelihood in mountains and steeplands, the productive capacity of the soils they use is likely to be affected by mass movement erosion. The impacts of mass movement erosion on land productivity are significant but under-rated in the scientific literature. Impacts on cropping are here reported from 15 countries in south and southeast Asia, east Africa, the Caribbean and Melanesia, but accounts are generalized or anecdotal, and do not quantify crop loss or damage attributable to mass movement separately from that due to surface or fluvial erosion. Impacts on pastoral

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Ahimbisibwe, Vianny, Eckhard Auch, Jürgen Groeneveld, Susan Balaba Tumwebaze, and Uta Berger. "Drivers of Household Decision-Making on Land-Use Transformation: An Example of Woodlot Establishment in Masindi District, Uganda." Forests 10, no. 8 (2019): 619. http://dx.doi.org/10.3390/f10080619.

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Land use transformation at the farm level is attributed to household decision-making, reflected by the behavior and activities of smallholder farmers. Unfortunately, household decision-making in local communities and its determinants are site-specific and hardly understood. This study uses multistage purposive selection of households as a unit for the analysis to investigate the transformation from pure agriculture to farm forest mosaics, especially through woodlot establishment. We use key informants, household surveys, and observations to obtain data on decision-making amongst 84 farm househ

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Witt, M. L., W. M. Fountain, R. L. Geneve, and D. L. Olszowy. "Partnering of U.K. and Kentucky Division of Forestry in Woody Plant Education." HortScience 32, no. 3 (1997): 492E—493. http://dx.doi.org/10.21273/hortsci.32.3.492e.

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America the Beautiful and Urban and Community Forestry grant programs, part of the expanded Forestry Title of the 1990 Farm Bill, authorized funding to encourage citizen involvement in creating and supporting long-term and sustained urban and community forestry programs. U.K. Woody Ornamental scientists and the KY Division of Forestry Urban Forestry Coordinator planned and implemented the following educational programs to this end: 1) comprehensive training manual on Managing Trees in the Urban Environment, including a guide for the care and protection of trees, grant application, and managing

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Schiffman, Paula M., and W. Carter Johnson. "Phytomass and detrital carbon storage during forest regrowth in the southeastern United States Piedmont." Canadian Journal of Forest Research 19, no. 1 (1989): 69–78. http://dx.doi.org/10.1139/x89-010.

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Carbon in soil, forest floor, and phytomass was estimated for two chronosequences of loblolly pine (Pinustaeda L.) plantations, as well as agricultural fields and natural Virginia pine (P. virginiana Mill.) forests. One plantation chronosequence was initiated on postagricultural fields and the other following clearing of natural second-growth pine forests and site preparation. Natural reforestation of old fields over 50–70 years increased carbon storage by about 235%, from about 55 000 to 185 000 kg/ha. Carbon in phytomass accounted for the greatest proportion of the increase (76%), followed b

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Cheng, Bin, Aditya Padavagod Shiv Kumar, and Lingjuan Wang-Li. "Inverse AERMOD and SCIPUFF Dispersion Modeling for Farm-Level PM10 Emission Rate Assessment." Transactions of the ASABE 64, no. 3 (2021): 801–17. http://dx.doi.org/10.13031/trans.14311.

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HighlightsAERMOD and SCIPUFF were employed to back-calculate farm-level PM10 emission rates based on inverse modeling.Both AERMOD and SCIPUFF did not capture the diurnal and seasonal variations of farm-level PM10 emission rates.AERMOD modeling results were affected by wind speed, with higher wind speed leading to higher emission rates.Higher numbers of receptors and PM10 measurements with greater time resolution may be recommended in the future.Abstract. Air pollutant emissions from animal feeding operations (AFOs) have become a serious concern for public health and ambient air quality. Partic

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Salkie, Fiona J., Martin K. Luckert, and William E. Phillips. "An economic analysis of landowner propensity for woodlot management and harvesting in northwestern Saskatchewan." Forestry Chronicle 71, no. 4 (1995): 451–58. http://dx.doi.org/10.5558/tfc71451-4.

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The recent development of new processing facilities in Meadow Lake, Saskatchewan has created a long-term market for timber in the region. Although these processing facilities are currently supplied by crown timber reserves, increasing pressure on public forest resources from multiple users has caused processors to consider private woodlots as a supplemental source of fibre. A survey was undertaken to investigate conditions under which landowners may respond to the emerging demand by managing their timber resources for harvest and sale.Survey results indicate that, although virtually no managem

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Guo, Ying, Zengyuan Li, Erxue Chen, et al. "An End-to-End Deep Fusion Model for Mapping Forests at Tree Species Levels with High Spatial Resolution Satellite Imagery." Remote Sensing 12, no. 20 (2020): 3324. http://dx.doi.org/10.3390/rs12203324.

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Mapping the distribution of forest resources at tree species levels is important due to their strong association with many quantitative and qualitative indicators. With the ongoing development of artificial intelligence technologies, the effectiveness of deep-learning classification models for high spatial resolution (HSR) remote sensing images has been proved. However, due to the poor statistical separability and complex scenarios, it is still challenging to realize fully automated and highly accurate forest types at tree species level mapping. To solve the problem, a novel end-to-end deep le

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Reynolds, Douglas B. "Farm Labor Monopsony: Farm Business And The Child Hierarchical Model Of Fertility." Journal of Business & Economics Research (JBER) 14, no. 1 (2016): 19–32. http://dx.doi.org/10.19030/jber.v14i1.9553.

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Arthur Lewis (1954) classic article on duel labor markets suggests that subsistence labor, due to high fertility and overpopulation, causes low wages. Basu (1999) and Dessy (2000) show a compelling theory for high fertility in developing countries where regions go into a poverty trap of low labor demand, low wages and overpopulation. An alternative explanation for overpopulation has to do with a simple farm business model where farming families have a labor monopsony for their own child labor. Child labor, not from society at large but from the farm family’s own children, can be a source of la

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ADELANI, D. O., M. A. ADURADOLA, and I. O. O. AIYELAGBE. "STORABILITY AND PRE-SOWING TREATMENTS OF AFRICAN STAR APPLE (CHRYSOPHYLLUM ALBIDUM G. Don) SEEDS." Journal of Agricultural Science and Environment 17, no. 1 (2017): 91–102. http://dx.doi.org/10.51406/jagse.v17i1.1794.

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Chrysophyllum albidum is a prominent, indigenous, economic fruit tree species found in compound farm agro-forestry systems . Investigation was conducted to overcome difficulty in germination and storability of C. albidum seeds in the forest nursery of Federal University of Agriculture, Abeokuta, Nigeria. The trial employed a 3x3 factorial experiment with three replications laid out in a completely randomized design to determine the effect of seed coat treatments including clipping at 2mm from distal, circumference and micropyle end; dipping in 10% sulphuric acid and no seed coat treatments and

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Chakraborty, Sonali. "Inequalities in Farm Sector Labour Force in India." Shanlax International Journal of Arts, Science and Humanities 8, no. 1 (2020): 44–56. http://dx.doi.org/10.34293/sijash.v8i1.3247.

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The back bone of the rural economy in India is the farm sector or agricultural sector. It also contributes an overall economic and social development towards the nation. Farm activities include agriculture (crop production), plantation, animal husbandry (milk, meat, egg, etc.), forestry & logging, and fishing. In India, the lion share of the labor force is engaged in the farm sector(Pal and Dutta.Though the female labor force participation is typically low in our country, their share in agriculture is commendable and not decreasing as it has been noticed in all other sectors in the recent

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Meena, Manish Kumar, M. C. Jain, and Pravin Singh. "Effect of pre-harvest spray of calcium nitrate, boric acid and zinc sulphate on storability of Nagpur mandarin (Citrus reticulata Blanco)." Journal of Applied and Natural Science 9, no. 3 (2017): 1297–301. http://dx.doi.org/10.31018/jans.v9i3.1356.

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An investigation was carried out at Fruit Research Farm, Department of Fruit Science at College of Horticulture and Forestry, Jhalawar during 16 September, 2014 to 1 March, 2015 to study the individual effect of Pre-harvest spray of Calcium nitrate, Zinc sulphate and Boric acid as well as their interaction on Storability of Nagpur mandarin (Citrus reticulata Blanco) after fruit set stage. Among different pre-harvest treatments, T27 treatment (Ca 3.0% + B 0.6% + Zn 0.6%) treated fruits had the longest shelf-life of 15 days at ambient conditions with lowest PLW (9.27 %), decay per cent (15.23 %)

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HARRAND, ANNA SOPHIA, LAURA K. STRAWN, PAOLA MERCEDES ILLAS-ORTIZ, MARTIN WIEDMANN, and DANIEL L. WELLER. "Listeria monocytogenes Prevalence Varies More within Fields Than between Fields or over Time on Conventionally Farmed New York Produce Fields." Journal of Food Protection 83, no. 11 (2020): 1958–66. http://dx.doi.org/10.4315/jfp-20-120.

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ABSTRACT Past studies have shown that the on-farm distribution of Listeria monocytogenes is affected by environmental factors (e.g., weather). However, most studies were conducted at large scales (e.g., across farms), whereas few studies examined drivers of L. monocytogenes prevalence at smaller scales (e.g., within a single field). This study was performed to address this knowledge gap by (i) tracking L. monocytogenes distribution in two fields on one farm over a growing season and (ii) identifying factors associated with L. monocytogenes isolation from drag swab, soil, and agricultural water

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Eady, Sandra, James Viner, and Justin MacDonnell. "On-farm greenhouse gas emissions and water use: case studies in the Queensland beef industry." Animal Production Science 51, no. 8 (2011): 667. http://dx.doi.org/10.1071/an11030.

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In response to climate change, research is being undertaken to understand the on-farm greenhouse gas emissions and water use for agricultural systems and investigate options farmers may have for mitigating or offsetting emissions. In the present study, a life cycle assessment framework is used to determine on-farm GHG emissions and water use, and the overall ‘cradle-to-farm gate’ GHG emissions and water use attributed to beef production. The total on-farm emissions for the two properties were 2984 t CO2-e/year (or 1.93 t CO2-e/livestock unit) for the 634-cow enterprise turning off weaner cattl

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Huang, J. C., T. Y. Lee, S. J. Kao, S. C. Hsu, H. J. Lin, and T. R. Peng. "The nitrate export in subtropical mountainous catchment: implication for land use change impact." Hydrology and Earth System Sciences Discussions 7, no. 6 (2010): 9293–326. http://dx.doi.org/10.5194/hessd-7-9293-2010.

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Abstract. Agricultural activity is the dominant factor affecting water quality and nitrate export, which causes eutrophication and episodic acidification in downstream water bodies (e.g., reservoirs, lakes, and coastal zones). However, in subtropical mountainous areas such environmental impact due to the land use change was rarely documented. In this study, we investigated 16 sub-catchments during 2007 and 2008 in the Chi-Chia-Wan catchment where is the sole habitat for the endemic species, Formosan landlocked salmon (Oncorhynchus masou formosanus). The results revealed that the NO3-N concentr

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Abay, Nigus Gebremedhn, and Matiwos Belayhun Haylemariyam. "Assessment on Acacia Woodland Degradation in Dire-Dawa Administration, Eastern Ethiopia." International Journal of Regional Development 5, no. 1 (2018): 44. http://dx.doi.org/10.5296/ijrd.v5i1.12280.

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Dry woodlands are vegetation formations which comprise of scrubs, bush lands, thickets, wooded grasslands and dense woodlands. The largest share of Ethiopia’s landmass is categorized as dryland, experiencing moisture stress during most days of the year. Hence, lowland woodlands are the largest remaining forests in Ethiopia, covering an estimated 55 million ha (48-6 per cent) of land. Beyond the socio-economic and ecological importance of forests Ethiopia experienced rapid loss of woodland vegetation annually. At country level the loss is attributed to low level of standard of living of farming

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Adler, Karl, Kristin Piikki, Mats Söderström, Jan Eriksson, and Omran Alshihabi. "Predictions of Cu, Zn, and Cd Concentrations in Soil Using Portable X-Ray Fluorescence Measurements." Sensors 20, no. 2 (2020): 474. http://dx.doi.org/10.3390/s20020474.

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Portable X-ray fluorescence (PXRF) measurements on 1520 soil samples were used to create national prediction models for copper (Cu), zinc (Zn), and cadmium (Cd) concentrations in agricultural soil. The models were validated at both national and farm scales. Multiple linear regression (MLR), random forest (RF), and multivariate adaptive regression spline (MARS) models were created and compared. National scale cross-validation of the models gave the following R2 values for predictions of Cu (R2 = 0.63), Zn (R2 = 0.92), and Cd (R2 = 0.70) concentrations. Independent validation at the farm scale r

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Zhang, Pengfei, Zhenliang Ma, and Xiaoxiong Weng. "Detecting Invalid Associations between Fare Machines and Metro Stations Using Smart Card Data." Journal of Advanced Transportation 2021 (June 10, 2021): 1–11. http://dx.doi.org/10.1155/2021/5283283.

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Data quality is essential for its authentic usage in analysis and applications. The large volume of automated collection data inevidently suffers from data quality issues including data missing and invalidity. This paper deals with an invalid data problem in the automated fare collection (AFC) database caused by the erroneous association between the fare machines and metro stations, e.g., a fare machine located at Station A is wrongly associated with Station B in the AFC database. It could lead to inappropriate fare charges in a distance-based fare system and cause analysis bias for planning/o

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Prosekov, А. Yu. "EFFECT OF FOREST COVERAGE ON THE DYNAMICS OF ELK POPULATION IN SOME AREAS OF KUZBASS." Scientific Notes of V.I. Vernadsky Crimean Federal University. Biology. Chemistry 6(72), no. 3 (2021): 163–78. http://dx.doi.org/10.37279/2413-1725-2020-6-3-163-178.

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Forests are a unique environmental phenomenon, since their space serves as the fundamental basis for the life of an innumerable number of biological species. Significant integral limited territories of forests are important ecosystems of our planet and have a significant impact on climate and biological processes. Mixed or single-breed, mountain or plain, dense or well-groomed, the forest as a self-regulating system with its life cycle is directly related to the natural balance. Currently, fragmentation, degradation and loss of natural habitats of animals are recognized as serious threats to t

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Tesema, Dereje, and Abeje Berhanu. "Rural Livelihood Strategies and Household Food Security of Farmers Surrounding Derba Cement Factory, Oromia Region, Ethiopia." Rural Sustainability Research 40, no. 335 (2018): 2–17. http://dx.doi.org/10.2478/plua-2018-0006.

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Abstract This study examined the livelihood strategies and food security situation of rural households around Derba Cement Factory by taking a randomly selected sample of 215 heads of farm households from three rural kebeles. A mixed research approach was employed to triangulate concurrently collected data through household survey, key informant interviews and focus group discussions. Informed by the sustainable rural livelihood framework, descriptive statistics were used to describe rural households’ livelihood strategies and challenges they faced while inferential statistics was employed to

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DJEZOU, Wadjamsse Beaudelaire. "Optimal Conversion of Forest Land to Agriculture: Evidence from Côte d’Ivoire." Journal of Agricultural Studies 1, no. 2 (2013): 13. http://dx.doi.org/10.5296/jas.v1i2.3938.

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The Ivorian economy is based on agriculture which constitutes by far the main cause of deforestation through its shifting characteristic. This situation threatens the ecological equilibrium on which depends in turn agricultural productivity. This paper investigates the determinants for optimal conversion of forest land to agriculture. To this end, we firstly established the optimal rule of forest land allocation to agriculture based on a rigorous forest land use modelling using optimal control techniques. Secondly, we evaluate the effects of the variables highlighted by the theoretical model t

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Cao, Kaili, and Xiaoli Zhang. "An Improved Res-UNet Model for Tree Species Classification Using Airborne High-Resolution Images." Remote Sensing 12, no. 7 (2020): 1128. http://dx.doi.org/10.3390/rs12071128.

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Tree species classification is important for the management and sustainable development of forest resources. Traditional object-oriented tree species classification methods, such as support vector machines, require manual feature selection and generally low accuracy, whereas deep learning technology can automatically extract image features to achieve end-to-end classification. Therefore, a tree classification method based on deep learning is proposed in this study. This method combines the semantic segmentation network U-Net and the feature extraction network ResNet into an improved Res-UNet n

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Hall, Charles R., and Dewayne Ingram. "Production Costs of Field-grown Cercis canadensis L. ‘Forest Pansy’ Identified during Life Cycle Assessment Analysis." HortScience 49, no. 5 (2014): 622–27. http://dx.doi.org/10.21273/hortsci.49.5.622.

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University researchers have recently quantified the value of carbon sequestration provided by landscape trees (Ingram, 2012, 2013). However, no study to date has captured the economic costs of component horticultural systems while conducting a life cycle assessment of any green industry product. This study attempts to fill that void. The nursery production system modeled in this study was a field-grown, 5-cm (2-in) caliper Cercis canadensis ‘Forest Pansy’ in the Lower Midwest. Partial budgeting modeling procedures were also used to measure the sensitivity of related costs and potential benefit

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Sebastià, M. T., E. Marks, and R. M. Poch. "Soil carbon and plant diversity distribution at the farm level in the savannah region of Northern Togo (West Africa)." Biogeosciences Discussions 5, no. 5 (2008): 4107–27. http://dx.doi.org/10.5194/bgd-5-4107-2008.

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Abstract. In western Africa, soil organic matter is a source of fertility for food provision and a tool for climate mitigation. In the Savannah region, strong soil degradation linked to an increase in population threatens organic matter conservation and agricultural yield. Soil degradation is also expected to impact biodiversity and, with it, increase the vulnerability of ecosystem goods and services, including the storage of soil organic carbon. Studies of land use, plant species composition and soil fertility were conducted for a conservation project at a demonstration farm in Northern Togo

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Podstawka, Marian, and Łukasz Podstawka. "TAXATION OF AGRICULTURAL ACTIVITY IN POLAND: THE CURRENT STATE AND FUTURE PROSPECTS." Zeszyty Naukowe SGGW, Polityki Europejskie, Finanse i Marketing, no. 24(73) (December 14, 2020): 177–88. http://dx.doi.org/10.22630/pefim.2020.24.73.36.

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This study is a response to an ongoing debate on changes in the taxation of agricultural income. The current taxes applicable to farms in Poland do not concern income per se – they are property taxes which include: agricultural tax on land, forestry tax and property tax. Although these taxes do not refer to agricultural income, they are paid by it. It is important, therefore, to know how much this income is reduced by these taxes. Studies show that it is about 10%. Therefore, when a new income tax structure is introduced, its rate should not exceed 10%. The calculation of farm income in Poland

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Stickler, Claudia M., Daniel C. Nepstad, Andrea A. Azevedo, and David G. McGrath. "Defending public interests in private lands: compliance, costs and potential environmental consequences of the Brazilian Forest Code in Mato Grosso." Philosophical Transactions of the Royal Society B: Biological Sciences 368, no. 1619 (2013): 20120160. http://dx.doi.org/10.1098/rstb.2012.0160.

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Land-use regulations are a critical component of forest governance and conservation strategies, but their effectiveness in shaping landholder behaviour is poorly understood. We conducted a spatial and temporal analysis of the Brazilian Forest Code (BFC) to understand the patterns of regulatory compliance over time and across changes in the policy, and the implications of these compliance patterns for the perceived costs to landholders and environmental performance of agricultural landscapes in the southern Amazon state of Mato Grosso. Landholdings tended to remain in compliance or not accordin

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PERKINS, PHILIP D. "New species and new collection records of Prosthetopine water beetles from southern Africa (Coleoptera: Hydraenidae)." Zootaxa 1864, no. 1 (2008): 1. http://dx.doi.org/10.11646/zootaxa.1864.1.1.

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New species of Hydraenidae are described in the genera Prosthetops Waterhouse (1), Pterosthetops Perkins (1), Parasthetops Perkins & Balfour-Browne (13), and Mesoceration Janssens (24). New collecting locality data are given for the following species described by Perkins & Balfour-Browne (1994): Parasthetops aeneus, P. nigritus, P. spinipes, P. curidius, Mesoceration distinctum, M. rivulare, M. jucundum, M. splendorum, M. rubidum, M. fusciceps, M. languidum, M. dissonum, M. rufescens, and M. brevigranum. High resolution digital images of the holotypes of new species are presented (onli

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Lyons, Kristina. "Chemical warfare in Colombia, evidentiary ecologies and senti-actuando practices of justice." Social Studies of Science 48, no. 3 (2018): 414–37. http://dx.doi.org/10.1177/0306312718765375.

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Between 1994 and 2015, militarized aerial fumigation was a central component of US-Colombia antidrug policy. Crop duster planes sprayed a concentrated formula of Monsanto’s herbicide, glyphosate, over illicit crops, and also forests, soils, pastures, livestock, watersheds, subsistence food and human bodies. Given that a national peace agreement was signed in 2016 between FARC-EP guerrillas and the state to end Colombia’s over five decades of war, certain government officials are quick to proclaim aerial fumigation of glyphosate an issue of the past. Rural communities, however, file quejas (com

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Campos, Pablo, Alejandro Álvarez, José L. Oviedo, Paola Ovando, Bruno Mesa, and Alejandro Caparrós. "Refined Systems of National Accounts and Experimental Ecosystem Accounting Versus the Simplified Agroforestry Accounting System: Testing in Andalusian Holm Oak Open Woodlands." Forests 11, no. 4 (2020): 393. http://dx.doi.org/10.3390/f11040393.

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The scientific debate over how to make visible the connections between the standard System of National Accounts (SNA) and its ongoing satellite Environmental Economic Ecosystem Accounting–Experimental Ecosystem Accounting (SEEA–EEA) is a challenge that is still pending. The literature on environmental accounting of agroforestry and silvopastoral landscapes rarely values the multiple ecosystem services of an area, an economic unit (e.g., farm), or a vegetation type (e.g., holm oak—Quercus ilex L.—open woodland). Generally, the literature presents the market value of the products consumed direct

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Teel, Wayne S., and James P. Lassoie. "Woodland Management and Agroforestry Potential Among Dairy Farmers in Lewis County, New York." Forestry Chronicle 67, no. 3 (1991): 236–42. http://dx.doi.org/10.5558/tfc67236-3.

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The purpose of this study was to assess the current level of woodland management by dairy farmers in Lewis County, New York, and determine types of woodland management or agroforestry strategies that could benefit them. Basic procedures followed were those of Diagnosis and Design Methodology as defined by the International Council for Research in Agroforestry, supplemented by Farming Systems Research strategies. Hypotheses concerning woodland management were developed and tested using a mail questionnaire, and on-farm and telephone interviews.It was found that respondents could be divided into

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Zgłobicki, Wojciech, Kamil Karczmarczuk, and Bogusława Baran-Zgłobicka. "Intensity and Driving Forces of Land Abandonment in Eastern Poland." Applied Sciences 10, no. 10 (2020): 3500. http://dx.doi.org/10.3390/app10103500.

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Agricultural land is an important natural resource and forms the basis for food production. Global and local socio-economic and environmental changes are often the driving forces of changes in land cover and land use. Land abandonment in rural areas is one of the processes observed in Europe today and usually leads to increased afforestation. The intensity of this process in Central Europe is linked to the political and economic changes that took place at the end of the 20th century. The study objective was to identify the natural and socio-economic factors of this process in Lublin Province—a

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Le Moan, Steven, and Claude Cariou. "Minimax Bridgeness-Based Clustering for Hyperspectral Data." Remote Sensing 12, no. 7 (2020): 1162. http://dx.doi.org/10.3390/rs12071162.

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Hyperspectral (HS) imaging has been used extensively in remote sensing applications like agriculture, forestry, geology and marine science. HS pixel classification is an important task to help identify different classes of materials within a scene, such as different types of crops on a farm. However, this task is significantly hindered by the fact that HS pixels typically form high-dimensional clusters of arbitrary sizes and shapes in the feature space spanned by all spectral channels. This is even more of a challenge when ground truth data is difficult to obtain and when there is no reliable

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Negash, Mesele, and Mike Starr. "Litter decomposition of six tree species on indigenous agroforestry farms in south-eastern Ethiopia in relation to litterfall carbon inputs and modelled soil respiration." Agroforestry Systems 95, no. 4 (2021): 755–66. http://dx.doi.org/10.1007/s10457-021-00630-w.

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AbstractThe indigenous agroforestry systems practised by smallholders in south-eastern Ethiopia have high biodiversity and productivity. However, little is known about their carbon (C) inputs and outputs. We carried out a 1-year litterbag study to determine leaf litter decomposition k constants for six woody species common to these agroforestry systems. The k values were then used to calculate the decomposition C losses from measured litterfall C fluxes and the results compared to modelled soil respiration (Rs) C losses. Litterbag weight loss at the end of the year was 100% or nearly so, k val

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Stinton, Darrol. "Aero-marine design and flying qualities of floatplanes and flying-boats." Aeronautical Journal 91, no. 903 (1987): 97–127. http://dx.doi.org/10.1017/s0001924000091375.

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Quite by chance after this lecture had been written I saw at first hand part of the fire-fighting operation in the Tanneron in the South of France using flying-boats. This provided an excellent point from which to begin.On 23rd August 1986 a vast fire was started deliberately, it was alleged, in the valley of the River Siagne, between Grasse and Mandelieu. There was a strong mistral blowing at the time. It was brought under control two days later with the aid of a small force of around nine ‘Pelicans’:Canadair CL-215flying-boats (Plate 1). Each aeroplane can scoop up over 5000 litres (more tha

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Sahani, Pankaj Kumar, Stephan W. Gale, André Schuiteman, Somsanith Bouamanivong, and Gunter A. Fischer. "Orchid Flora of Laos: findings from a survey of limestone karst vegetation in Vang Vieng, Vientiane Province, Laos." Journal of Threatened Taxa 8, no. 12 (2016): 9397. http://dx.doi.org/10.11609/jott.2826.8.12.9397-9417.

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A major project to study the phytodiversity of the Indo-Burma Biodiversity Hotspot was initiated by Kadoorie Farm and Botanic Garden, Hong Kong, in 2011, with the aim of surveying primary forest fragments and identifying conservation priorities within this expansive but highly threatened ecoregion. The Vang Vieng area of Vientiane Province, northern Laos, was chosen as a focus for a pilot expedition, since it features an extensive karst landscape that has barely been explored. Together with officials from the Ministry of Science and Technology, Government of Lao PDR, surveys of three sites wer

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Ward, A. L., and D. J. Rogers. "Population ecology of Heteronyx piceus (Coleoptera: Scarabaeidae) in a peanut/maize cropping system." Bulletin of Entomological Research 96, no. 2 (2006): 129–36. http://dx.doi.org/10.1079/ber2005407.

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AbstractLarge larval populations of the scarabaeid beetle Heteronyx piceus Blanchard that occur under peanuts, but not maize, in the South Burnett region of Australia are the result of a high rate and prolonged period of egg production by females feeding on peanut foliage. Heteronyx piceus is a relatively sedentary species and movement of females between adjacent fields is low. Populations of H. piceus varied markedly with landscape position. High larval populations are more likely (1 in 4 chance) to be encountered on the ‘scrub’ soils in the upper parts of the landscape than in the ‘forest’ s

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Githiru, Mwangi, Erik Matthysen, Luc Lens, and Leon A. Bennun. "Can a common bird species be used as a surrogate to draw insights for the conservation of a rare species? A case study from the fragmented Taita Hills, Kenya." Oryx 41, no. 2 (2007): 239–46. http://dx.doi.org/10.1017/s0030605307001810.

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AbstractSound knowledge of underlying mechanisms is essential for understanding how species respond to habitat fragmentation. Because most threatened species are typically the first ones to suffer local extinctions with forest fragmentation, studying why they fare poorly at the broader landscape scale is difficult. Related, sympatric but common species may be useful surrogates if they can provide insights germane for the conservation of rarer species. We illustrate this using a case study from the highly fragmented Taita Hills forests, south-eastern Kenya, of the Critically Endangered Taita th

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Lana, Guilherme Carvalho, Romano Timofeiczyk Jr, Dimas Agostinho da Silva, David Alexandre Buratto, and Gustavo Silva Oliveira. "Yield From Forest Harvesting Operations for the Production of Charcoal in the State of Minas Gerais." Journal of Agricultural Science 11, no. 14 (2019): 12. http://dx.doi.org/10.5539/jas.v11n14p12.

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The charcoal is a renewable natural resource, produced from wood by the process of carbonization and with great energetic importance. However, there is still little research and use of new technologies to optimize the use of wood in the production of charcoal. Therefore, the present work was aimed at analyzing the yield from forest harvesting operations for the production of charcoal. The research was developed at Vallourec e Mannesmann Florestal, a company located at Itapo&atilde; farm, municipality of Paraopeba, Minas Gerais. To this end, the harvest and timber transport operations in th

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Dufek, Matias I., Dario D. Larrea, Miryam P. Damborsky, and Pablo R. Mulieri. "The Effect of Anthropization on Sarcophagidae (Diptera: Calyptratae) Community Structure: An Assessment on Different Types of Habitats in the Humid Chaco Ecoregion of Argentina." Journal of Medical Entomology 57, no. 5 (2020): 1468–79. http://dx.doi.org/10.1093/jme/tjaa071.

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Abstract Sarcophagidae (Diptera) are of great interest from a veterinary, medical, and forensic viewpoint, and are potential bioindicators for environmental impact assessments. In this study, we evaluated changes in abundance, species richness, and diversity of flesh flies in different habitat types in the Humid Chaco ecoregion of South America: 1) anthropized habitats: urban, cattle farm, and alfalfa crop, and 2) natural habitats: savanna and forest. We hypothesized that sarcophagid fly community parameters are affected by the anthropization and that spatial turnover will contribute more to t

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Mueller, J. P., M. E. Barbercheck, M. Bell, et al. "Development and Implementation of a Long-term Agricultural Systems Study: Challenges and Opportunities." HortTechnology 12, no. 3 (2002): 362–68. http://dx.doi.org/10.21273/horttech.12.3.362.

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The Center for Environmental Farming Systems (CEFS) is dedicated to farming systems that are environmentally, economically, and socially sustainable. Established in 1994 at the North Carolina Department of Agriculture and Consumer Services (NCDACS) Cherry Farm near Goldsboro, N.C.; CEFS operations extend over a land area of about 800 ha (2000 acres) [400 ha (1000 acres) cleared]. This unique center is a partnership among North Carolina State University (NCSU), North Carolina Agriculture and Technical State University (NCATSU), NCDACS, nongovernmental organizations (NGOs), other state and feder

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Fernández-Moya, Jesús, Alfredo Alvarado, Rafael Mata, et al. "Soil fertility characterisation of teak (Tectona grandis L.f.) plantations in Central America." Soil Research 53, no. 4 (2015): 423. http://dx.doi.org/10.1071/sr14256.

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Teak (Tectona grandis L.f.) is an important species in the worldwide quality tropical hardwood sector, which has gained significance in Central America since the first large plantations were established in the 1980s. The present work is a descriptive study that aims to: (1) analyse and characterise the general soil patterns which may be influencing teak plantations in Central America; (2) assess differences between countries and sub-regions; (3) create a global framework to help contextualise the soil fertility analyses conducted at sub-regional or farm level, and (4) determine the main proble

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Akiyama, Tsuyoshi, Y. Inoue, M. Shibayama, Y. Awaya, and N. Tanaka. "Monitoring and predicting crop growth and analysing agricultural ecosystems by remote sensing." Agricultural and Food Science 5, no. 3 (1996): 367–76. http://dx.doi.org/10.23986/afsci.72741.

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LANDSAT/TM data, which are characterized by high spectral/spatial resolutions, are able to contribute to practical agricultural management. In the first part of the paper, the authors review some recent applications of satellite remote sensing in agriculture. Techniques for crop discrimination and mapping have made such rapid progress that we can classify crop types with more than 80% accuracy. The estimation of crop biomass using satellite data, including leaf area, dry and fresh weights, and the prediction of grain yield, has been attempted using various spectral vegetation indices. Plant st

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Chabeda-Barthe, Jemaiyo, and Tobias Haller. "Resilience of Traditional Livelihood Approaches Despite Forest Grabbing: Ogiek to the West of Mau Forest, Uasin Gishu County." Land 7, no. 4 (2018): 140. http://dx.doi.org/10.3390/land7040140.

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This paper is a summary of the findings of research work conducted in two case studies in the Rift Valley, Kenya. This study used the Neo-Institutional theory to interrogate how the rules and regulations (institutions involved) of the agrarian reform process in Kenya are constantly changing and helping to shape the livelihoods of social actors around Mau Forest. The first case study—Ndungulu, is a settlement scheme where the Ogiek ethnic community were resettled between 1995 and 1997 after the land clashes of 1992. The second case study is the Kamuyu cooperative farm, a post-colonial settlemen

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Wanmi, N., M. H. Sulaiman, I. Gosomji, S. M. Maidawa, and N. Plang. "Study on the macrometry of gastrointestinal tract of wild west African Senegal parrot (Poicephalus senegalus versteri)." Anatomy Journal of Africa 6, no. 3 (2017): 1065–70. http://dx.doi.org/10.4314/aja.v6i3.163513.

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Parrots are ornamental birds that are found in the wild and those in domestication end up in animal units of schools and houses of the wealthy individuals. The wild African Senegal parrot population is at risk of extinction due to its high popularity with urban dweller. Despite their high popularity, there is scanty documentation of the anatomical features of its gastrointestinal tract (GIT). The Wild West African Senegal Parrots were caught around forested area of a farm settlement in Shika, Zaria, Kaduna state, in the Northern part of Nigeria. The mean body weight of the wild Senegal parrot

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Araújo, Adão Batista de, Patrícia Carneiro Souto, Jacob Silva Souto, Fabio Junho Alves da Silva, Francisco de Assis Pereira Leonardo, and César Henrique Alves Borges. "Contribution of Plant Litter in Fragments of Dry Tropical Forest in Paraíba." Journal of Agricultural Science 10, no. 12 (2018): 437. http://dx.doi.org/10.5539/jas.v10n12p437.

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Deposition of plant litter in the environment represents the entrance into the system, with reflection on soil organic matter content and environmental quality of the site. The objective of this study was to estimate the deposition, accumulation and decomposition of plant litter in preserved Caatinga vegetation, and the interference of climatic variability in the dynamics of these events. This research was developed in the Private Natural Heritage Reserve (RPPN), Tamandu&aacute; Farm, in the municipality of Santa Terezinha-PB, in a Caatinga area. Plant litter deposited in 20 twenty 1.0 m&a

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Ligaszewski, Maciej, Przemysław Pol, Iwona Radkowska, and Andrzej Łysak. "Observations on the Maturation and Development of a Roman Snail (Helix Pomatia, Linnaeus, 1758) Population of Farmed Origin in Natural Plots." Annals of Animal Science 16, no. 4 (2016): 1163–73. http://dx.doi.org/10.1515/aoas-2016-0018.

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Abstract Observations were made concerning active species protection of the Roman snail. Samples were collected from three natural plots in which 3,000 marked hatchlings of farmed origin, aged 1+ (three individuals per m2), were placed in mid-May 2011. The hatchlings originated from breeding snails of the park, or ‘source’ plot. The other plots were a forest, or ‘inhabited’ plot, occupied by a foreign population and a cultivated ‘empty’ plot, which had been emptied of its natural population. By the end of June 2012, the introduced snails were aged 2+, when snails of this species reach maturity

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Daigle, Claude, Michel Crête, Louis Lesage, Jean-Pierre Ouellet, and Jean Huot. "Summer Diet of Two White-tailed Deer, Odocoileus virginianus, Populations Living at Low and High Density in Southern Québec." Canadian Field-Naturalist 118, no. 3 (2004): 360. http://dx.doi.org/10.22621/cfn.v118i3.13.

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We investigated summer diets of two White-tailed Deer (Odocoileus virginianus) populations through rumen content analyses. Samples from 93 deer were collected in a low density, LD (1 deer/km2) and a high density, HD (14 deer/km2) area of southern Québec during the growing seasons of 1997 and 1998. Availability of preferred forage in forests was greater in LD than in HD, whereas agriculture covered a larger proportion of the area in HD than LD. Rumen composition differed between the two populations. Deer from HD consumed less forbs and leaves of shrubs and trees than did LD deer, whereas they c

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Bloomfield, Gillian, Paula Meli, Pedro H. S. Brancalion, Eli Terris, Manuel R. Guariguata, and Eva Garen. "Strategic Insights for Capacity Development on Forest Landscape Restoration: Implications for Addressing Global Commitments." Tropical Conservation Science 12 (January 2019): 194008291988758. http://dx.doi.org/10.1177/1940082919887589.

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Global initiatives such as the Aichi Targets and Bonn Challenge have inspired governments to pledge to restore millions of hectares of degraded lands. Many of these calls to action and policy frameworks identify capacity development as important for implementing and scaling-up restoration activities to meet global targets. However, there is little explanation about what capacity development actually involves. How is capacity development approached in the context of restoration? What makes it more or less effective? This article aims to help fill that gap by identifying four components of what

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Wang, Biwei, Zengxiang Zhang, Xiao Wang, Xiaoli Zhao, Ling Yi, and Shunguang Hu. "Object-Based Mapping of Gullies Using Optical Images: A Case Study in the Black Soil Region, Northeast of China." Remote Sensing 12, no. 3 (2020): 487. http://dx.doi.org/10.3390/rs12030487.

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Gully erosion is a widespread natural hazard. Gully mapping is critical to erosion monitoring and the control of degraded areas. The analysis of high-resolution remote sensing images (HRI) and terrain data mixed with developed object-based methods and field verification has been certified as a good solution for automatic gully mapping. Considering the availability of data, we used only open-source optical images (Google Earth images) to identify gully erosion through image feature modeling based on OBIA (Object-Based Image Analysis) in this paper. A two-end extrusion method using the optimal m

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