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Dissertations / Theses on the topic 'Rotation forestry'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Zurba, Kamal. "Is short rotation forestry biomass sustainable?" Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2016. http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-212162.

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Despite the negative effects of fossil fuels on the environment, these remain as the primary contributors to the energy sector. In order to mitigate global warming risks, many countries aim at reducing greenhouse gas emissions. Bioenergy crops are being used as a substitute for fossil fuels and short rotation forestry is a prime example. In order to examine the sustainability of energy crops for fuel, typical European short rotation forestry (SRF) biomass, willow (Salix spp.) and poplar (Populus spp.) are examined and compared to rapeseed (Brassica napus L.) in respect to various aspects of so

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2

Jacob, Sylvain. "Short Rotation Forestry Feedstock for Gasification." Perpignan, 2013. http://www.theses.fr/2013PERP1237.

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Cette thèse s'est focalisée sur l'étude de la pertinence de l'utilisation des Taillis à Très Courte Rotation (TTCR) pour la production d'énergie via une gazéification, et sur la compréhension du comportement spécifique des TTCR lors de leur gazéification. Les TTCR ont une proportion d'écorce élevée conduisant à des propriétés particulières et potentiellement problématiques pour la gazéification. Les principales propriétés des TTCR, i. E. Leur composition en inorganiques et leur composition structurale, ont été mesurées sur des parties de plantes de TTCR d'eucalyptus et des fractions granulomét

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3

Mudiyanselage, Nalika Swarnamali Senevirathna Rajapaksha. "Short rotation forestry and earthworm diversity : impacts and responses." Thesis, University of Central Lancashire, 2012. http://clok.uclan.ac.uk/8508/.

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Short Rotation Forestry (SRF) has been introduced to the UK as a method to increase biomass production. However, some SRF species have raised concerns about potential impacts on the environment. A largely unknown aspect of SRF is the quality and quantity of leaf litter, and its impact on soil fauna, of which the earthworm community is a major component. Earthworms have direct impacts on the soil biogeochemistry of SRF systems, and the tree species can impact on the associated earthworm community. The aim of this study was to investigate the effects of SRF species and litter quality on earthwor

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4

Griffiths, Jeremy. "The dynamics and impact of chrysomelid infestation of willow short rotation coppice." Thesis, Imperial College London, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.272198.

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5

Xu, Ying. "Three essays on forestry economics and management." Diss., Virginia Tech, 2014. http://hdl.handle.net/10919/64463.

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Forest management strategies directly affect landowner welfare, and factors ranging from natural disturbances to institutional environments play important roles in influencing the outcomes for both landowners and society. This dissertation, consisting of three essays, delves into the forest sectors in both developed and developing countries with an aim of uncovering the impacts of various factors in forest management, as well as resulting welfare changes felt by landowners and society. The first essay extends previous literature on natural disturbances and forest management, where a single dis

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6

Aylott, Matthew. "Modelling climate change impacts on the productivity of short rotation coppice." Thesis, University of Southampton, 2010. https://eprints.soton.ac.uk/179745/.

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Fast growing hybrids of Salix and Populus can be grown in a short rotation coppice (SRC) system to produce renewable energy. This PhD investigates the interactions between the environment and productivity, with a view to finding the key limiting factors to yield and the potential of these crops to fulfil UK renewable energy obligations, now and in the future. An empirical modelling technique, using partial least squares regression was developed to extrapolate actual field observations to a national scale. Genotype x age x environment interactions were studied to examine the key limiting factor

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7

Leslie, Andrew Dunbar. "Eucalypts as a genus for short rotation forestry in Great Britain." Thesis, University of Edinburgh, 2016. http://hdl.handle.net/1842/21700.

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The study focused on four research objectives: 1. To identify the species and provenances of eucalypts most suitable for biomass production in Great Britain. 2. To compare growth of eucalypts with other promising short rotation forestry genera. 3. To develop volume and biomass functions for E. gunnii. 4. To estimate yields and patterns of growth for E. gunnii. Searches on CAB abstracts and World of Science showed that there was limited research conducted on eucalypts in the UK. This research provides an original contribution to knowledge through; a long term assessment of the performance of sp

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8

Kunstmann, Martin. "Comparative LCA of Wood from Conventional Forestry and Wood from Short Rotation Coppice." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-135927.

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Worldwide there is an increasing demand of natural resources. In future, non renewable resources get substituted by renewable resources in the energetic sector as well as in the material sector. That implies a stronger usage of renewable resources especially - wood. In 2009 there was a usage of 77 million cubic meters of wood for material applications and a quantity of 55 million cubic meters for energetic applications in Germany alone. Furthermore, there is an increasing demand on wood for energetic purposes. In 2007 this problematic development led to the first supply bottlenecks. To meet th

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9

Kunstmann, Martin. "Comparative LCA of Wood from Conventional Forestry and Wood from Short Rotation Coppice." Technische Universität Dresden, 2012. https://tud.qucosa.de/id/qucosa%3A27690.

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Worldwide there is an increasing demand of natural resources. In future, non renewable resources get substituted by renewable resources in the energetic sector as well as in the material sector. That implies a stronger usage of renewable resources especially - wood. In 2009 there was a usage of 77 million cubic meters of wood for material applications and a quantity of 55 million cubic meters for energetic applications in Germany alone. Furthermore, there is an increasing demand on wood for energetic purposes. In 2007 this problematic development led to the first supply bottlenecks. To meet th

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10

Karačić, Almir. "Production and ecological aspects of short rotation poplars in Sweden /." Uppsala : Dept. of Short Rotation Forestry, Swedish Univ. of Agricultural Sciences, 2005. http://epsilon.slu.se/200513.pdf.

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11

Nejad, Pajand. "Pathogenic and ice-nucleation active (INA) bacteria causing dieback of willows in short rotation forestry /." Uppsala : Dept. of Forest Mycology and Pathology, Swedish University of Agricultural Sciences, 2005. http://epsilon.slu.se/200524.pdf.

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12

Otterbeck, Daniel, and Fredrik Lundstedt. "Valuation of Forest Non-Market Values : An empirical study in Northern Sweden." Thesis, Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-64366.

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The purpose of this study was to investigate the Willingness to Pay (WTP) of conserving a ten hectares forest area in Rutvik, amongst the population of Luleå municipality. Furthermore, the study investigated the factors influencing the WTP and its impact on a Faustmann-Hartman rotation period. The tested influential factors were both socio-economic and attitudes towards use values and non-use vales that a forest stand can provide the society. The study used an empirical approach, were a survey was created using a Contingent Valuation Method (CVM). The survey consisted of three parts, where the

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13

Girouard, Patrick. "On-farm evaluation of short-rotation forestry : economics of willow plantations and windbreaks in Central Canada." Thesis, McGill University, 1995. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=22733.

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The purpose of this thesis is the determination of a minimum market price for Short-Rotation Forestry (SRF) willow biomass grown in monoculture and windbreaks in Quebec and Ontario. Full cost budgeting was used and developed on a Microsoft Excel spreadsheet. Harvest cycles of 3 and 4 years for monoculture plantations, and 8 years for windbreaks were investigated. Estimates for establishment and other preharvest costs were obtained from mid-sized (5 hectares) commercial SRF willow plots in Quebec and Ontario.<br>For the monoculture plantations, irrespective of cycle length, and using the base c

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14

Bauen, Ausilio Walter. "Gasification-based biomass fuel cycles : a decision and policy analysis." Thesis, King's College London (University of London), 2000. https://kclpure.kcl.ac.uk/portal/en/theses/gasificationbased-biomass-fuel-cycles--a-decision-and-policy-analysis(13e4628c-9a91-4325-98b0-76683350e8d9).html.

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15

Horton, C. "Biomass production, population structure, and self-thinning in experimental, short-rotation plantations of willow (Salix burjatica (Nasarov) 'Aquatica gigantea') in Northern Ireland." Thesis, University of Ulster, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.378610.

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16

Parmar, Kim. "Impacts of land use change to short rotation forestry for bioenergy on soil greenhouse gas emissions and soil carbon." Thesis, University of Edinburgh, 2016. http://hdl.handle.net/1842/16159.

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Short Rotation Forestry (SRF) for bioenergy could be used to meet biomass requirements and contribute to achieving renewable energy targets. As an important source of biomass it is important to gain an understanding of the implications of large-scale application of SRF on the soil-atmosphere greenhouse gas (GHG) exchange. This study examined the effects of land use change (LUC) from grassland to SRF on soil fluxes of methane (CH4), nitrous oxide (N2O) and carbon dioxide (CO2), and the important drivers in action. Examining soils from a range of sites across the UK, CO2 emission potentials were

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17

Zurba, Kamal [Verfasser], Jörg [Akademischer Betreuer] Matschullat, Jörg [Gutachter] Matschullat, Klaus [Gutachter] Butterbach-Bahl, and Hermann [Gutachter] Heilmeier. "Is short rotation forestry biomass sustainable? / Kamal Zurba ; Gutachter: Jörg Matschullat, Klaus Butterbach-Bahl, Hermann Heilmeier ; Betreuer: Jörg Matschullat." Freiberg : Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2016. http://d-nb.info/1221068237/34.

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18

Canesin, Chiara. "La Short Rotation Forestry in Nord Italia. Limiti e potenzialità del suo impiego sotto differenti scenari: produzione di biomassa e prove di fertilizzazione." Doctoral thesis, Università degli studi di Padova, 2010. http://hdl.handle.net/11577/3421881.

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During the last decades, short rotation forestry (SRF) plantations have become attractive for Italian farmers due both to their capacity to produce large quantities of woody biomass for energy purposes and to the considerable amount of public incentives allowed. The present study quantifies in a chronosequence 52 plantations in the Italian region of Friuli Venezia Giulia in order to acquire extensive knowledge of the productivity potential of SRF plantations in Northern Italy, their mortality rate, shoot sprouting capacity after coppicing and above-ground biomass production. Two newly selecte

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19

Wildy, Daniel Thomas. "Growing mallee eucalypts as short-rotation tree crops in the semi-arid wheatbelt of Western Australia." University of Western Australia. School of Plant Biology, 2004. http://theses.library.uwa.edu.au/adt-WU2004.0031.

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[Truncated abstract] Insufficient water use by annual crop and pasture species leading to costly rises in saline watertables has prompted research into potentially profitable deep-rooted perennial species in the Western Australian wheatbelt. Native mallee eucalypts are currently being developed as a short-rotation coppice crop for production of leaf oils, activated carbon and bio-electricity for low rainfall areas (300—450 mm) too dry for many of the traditional timber and forage species. The research in this study was aimed at developing a knowledge base necessary to grow and manage coppice

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20

Owen, Jenny. "Provision of habitat for black grouse Tetrao tetrix in commercial forest restocks in relation to their management." Thesis, University of Stirling, 2011. http://hdl.handle.net/1893/3444.

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As planted forests mature and are clearfelled in patches, second rotation tree crops (restocks) become available to black grouse, a species of conservation concern in the UK. Currently, only a limited amount is known about the resources provided by this habitat to black grouse and their broods. The aims of this study therefore, were to investigate the recovery of field-layer vegetation and the invertebrate population from restock through to canopy closure of planted trees, assess the duration of habitat availability and food resources to black grouse, and understand how forest management could

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21

Bhattacharyya, Rabindra Nath. "Optimal Forest Rotation: Decisions Under Conditions of Certainty and Uncertainty." DigitalCommons@USU, 1985. https://digitalcommons.usu.edu/etd/4098.

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The existing literature determining the optimal rotation period of a forest stand under conditions of certainty, as well as under uncertainty, lacks the genera 1 scope to be useful. A forest provides timber of commercial value, a flow of recreational services, and other valuable environmental s ervices. Providing goods and services invo lves benefits as well as costs. Relevant management decisions depend on the net va 1 ues that can be obtai ned. The present work developes a more general model for determining an optimal rotation period incorporating various fixed and variable costs associated

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22

Cheynet, Kyla Ingeborg. "Effects of Mid-Rotation Release on Forest Structure, Wildlife Habitat, and Pine Yield." Thesis, Virginia Tech, 1999. http://hdl.handle.net/10919/36113.

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The effects of two forms of mid-rotation release on thinned, fertilized loblolly pine (Pinus taeda L.) plantations in Virginia were examined: aerial imazapyr and basal triclopyr application. Imazapyr measurement plots were installed in nine Piedmont and twelve Coastal Plain plantations operationally released with imazapyr, and triclopyr measurement plots were installed within a controlled fertilization/release study spanning both regions. No differences in volume were detected following triclopyr release. All release dates combined, Piedmont released areas averaged 0.06 m3/tree (18%) great

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23

Кірдан, М. А. "Агроекономічний аналіз рослинницької галузі ФГ «БІЛІ РОСИ» Чернігівської обл., Коропського району, с Понорниця та заходи поліпшення технології вирощування гречки в умовах Полісся". Thesis, Чернігів, 2020. http://ir.stu.cn.ua/123456789/20088.

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Кірдан, М. А. Агроекономічний аналіз рослинницької галузі ФГ «БІЛІ РОСИ» Чернігівської обл., Коропського району, с Понорниця та заходи поліпшення технології вирощування гречки в умовах Полісся: дипломна робота : 201 Агрономія/ М. А. Кірдан ; керівник роботи Локоть О. Ю; Національний університет «Чернігівська політехніка», кафедра аграрних технологій та лісового господарства. – Чернігів, 2020. – 73 с.<br>На сучасному етапі в рослинництві пріоритетним напрямом є виробництво продукції, що потребує меншого застосування ресурсів при максимальному використання потенціалу вирощуваних культур і рег

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Badenhorst, Johannes Jurie. "The effect of fertilising pinus radiata stands at mid rotation age in the Western Cape Province on leaf area, growth efficiency and stand productivity." Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/4375.

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Thesis (MScFor (Forest and Wood Science))--University of Stellenbosch, 2010.<br>ENGLISH ABSTRACT: Mid rotation fertiliser application is generally practised in forestry to enhance nutrient availability in areas were soils are impoverished and do not provide sufficient nutrients for high productivity. Generally speaking there is great potential for mid rotation fertiliser in pine plantations, but stand and site characteristics such as water availability, soil depth, stand density and available nutrients need to be considered before fertiliser treatments are implemented. Foliar nutrient analyses

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25

Федосенко, М. В. "Досвід вирoщувaння лісового сaдивнoгo мaтеріaлу в ДП «Холминське лісoве гoспoдaрствo»". Thesis, Чернігів, 2021. http://ir.stu.cn.ua/123456789/23150.

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Федосенко, М. В. Досвід вирoщувaння лісового сaдивнoгo мaтеріaлу в ДП «Холминське лісoве гoспoдaрствo» : випускна кваліфікаційна робота : 205 «Лісове господарство» / М. В. Федосенко ; керівник роботи О. М. Корма ; НУ "Чернігівська політехніка", кафедра аграрних технологій та лісового господарства. – Чернігів, 2021. – 62 с.<br>Випускна кваліфікаційна робота «Досвід вирoщувaння лісового сaдивнoгo мaтеріaлу в ДП «Холминське лісoве гoспoдaрствo»» присвячена проблемі вирощування лісового садивного матеріалу для лісовідновлення та лісорозведення в господарстві. Правильна організація високопродуктивн

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26

Rönnberg, Jonas. "Incidence of root and butt rot in consecutive rotations, with emphasis on Heterobasidion annosum in Norway spruce /." Alnarp : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 1999. http://epsilon.slu.se/avh/1999/91-576-5630-4.pdf.

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27

Brinks, Joshua Scott. "TWO YEAR RESPONSE OF A WOODY BIOFUEL PLANTATION TO INTENSIVE MANAGEMENT ON A RECLAIMED SURFACE MINE IN EASTERN KENTUCKY." UKnowledge, 2010. http://uknowledge.uky.edu/gradschool_theses/69.

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The establishment of intensively managed woody energy crops on reclaimed surface mine lands provides an opportunity to diversify domestic biomass sources, while increasing the productivity and economic value of underutilized land. Our objective is to test the effect of fertilization and irrigation on the growth, survival, biomass accumulation, biomass allocation, leaf area, and nutrient dynamics of American sycamore (Platanus occidentalis L.) and black locust (Robinia pseudoacacia L.) planted on a reclaimed surface mine. In 2008, replicated plantings of sycamore and black locust were establish

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Attiogbevi-Somado, Eklou. "The use of phosphate rock in a rice-legume rotation system on acid soil in the humid forest zone of West Africa /." Göttingen : E. Goltze, 2000. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=009236684&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.

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29

Chikumbu, Vavariro. "Growth responses to fertilizer application of thinned, mid-rotation Pinus radiata stands across a soil water availability gradient in the Boland area of the Western Cape." Thesis, Stellenbosch : Stellenbosch University, 2011. http://hdl.handle.net/10019.1/17828.

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Thesis (MscFor)--Stellenbosch University, 2011.<br>ENGLISH ABSTRACT: The purpose of the study was to investigate the effect of mid rotation fertilizer application on leaf area index (LAI), basal area and volume increment in thinned Pinus radiata stands on the most common soils of the Boland region in the Western Cape. The study was conducted on a range of sites in the Boland region of MTO Forestry Company, chosen to reflect the two most common soil types and a water availability gradient in each soil type. A factorial combination of fertilizer treatments with three levels each for nitrog

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Haddad, Georges. "Aspects physiologiques de la culture du peuplier en taillis à courte rotation ; Fertilisation des sols par boues résiduaires." Grenoble 1, 1988. http://www.theses.fr/1988GRE10104.

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Etude de la periode favorable au recepage, effets du recepagez sur la croissance et sur la productivite. Etudes en laboratoire sur la culture en presence de mercure en milieu hydroponique et sur les potentialites de retention du sol. Effets sur la croissance et sur la composition chimique de l'application de boues residuaires

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Reay, Stephen David. "Aspects of the ecology and behaviour of Hylastes ater (Paykull) (Coleoptera: Scolytidae) in second rotation Pinus radiata forests in the central North Island, New Zealand, and options for control." Thesis, University of Canterbury. Forestry, 2000. http://hdl.handle.net/10092/6640.

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This study examined aspects of the pest status and ecology of Hylastes ater in Pinus radiata reforestation sites. Aspects of the flight activity, larval survival and adult emergence from stumps by Hylastes ater and Hylurgus ligniperda were investigated. H .ater was found to be univoltine with a peak of flight activity in autumn. Competition from H. ligniperda has displaced H. ater from sites harvested during the spring and summer months. H ligniperda was bivoltine with peaks of flight activity in spring and summer. The establishment of H. ligniperda in New Zealand has resulted in changes in t

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Обабко, В. В. "Особливості вирощування лісового садивного матеріалу в ДП «Остерське лісове господарство»". Thesis, Чернігів, 2021. http://ir.stu.cn.ua/123456789/23141.

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Обабко, В. В. Особливості вирощування лісового садивного матеріалу в ДП «Остерське лісове господарство» : випускна кваліфікаційна робота : 205 «Лісове господарство» / В. В. Обабко ; керівник роботи О. М. Корма ; НУ "Чернігівська політехніка", кафедра аграрних технологій та лісового господарства. – Чернігів, 2021. – 45 с.<br>Випускна кваліфікаційна робота «Особливості вирощування лісового садивного матеріалу в ДП «Остерське лісове господарство»» присвячена проблемі лісорозведення та лісовідновлення, головним і найефективнішим методом яких є посадка сіянців і саджанців деревних і чагарникових по

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33

Xia, Junshi. "Multiple classifier systems for the classification of hyperspectral data." Thesis, Grenoble, 2014. http://www.theses.fr/2014GRENT047/document.

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Dans cette thèse, nous proposons plusieurs nouvelles techniques pour la classification d'images hyperspectrales basées sur l'apprentissage d'ensemble. Le cadre proposé introduit des innovations importantes par rapport aux approches précédentes dans le même domaine, dont beaucoup sont basées principalement sur un algorithme individuel. Tout d'abord, nous proposons d'utiliser la Forêt de Rotation (Rotation Forest) avec différentes techiniques d'extraction de caractéristiques linéaire et nous comparons nos méthodes avec les approches d'ensemble traditionnelles, tels que Bagging, Boosting, Sous-es

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Липівець, Б. В. "Інформаційна техноглогія розпізнавання структурних дефектів труб". Master's thesis, Сумський державний університет, 2019. http://essuir.sumdu.edu.ua/handle/123456789/76772.

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Розроблено систему класифікації дефектів в водостічних трубах на основі Rotation forest. Розроблений алгоритм реалізовано у формі програмного забезпечення, написаного на мові програмування Python 3.

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Bridge, Christopher. "Computer-aided analysis of fetal cardiac ultrasound videos." Thesis, University of Oxford, 2017. https://ora.ox.ac.uk/objects/uuid:c9cad151-6f08-461a-acd6-9fd63477b91a.

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This thesis addresses the task of developing automatic algorithms for analysing the two-dimensional ultrasound video footage obtained from fetal heart screening scans. These scans are typically performed in the second trimester of pregnancy to check for congenital heart anomalies and require significant training and anatomical knowledge to perform. The aim is to develop a tool that runs at high frame rates with no user initialisation and infers the visibility, position, orientation, view classification, and cardiac phase of the heart, and additionally the locations of cardiac structures of int

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Parmain, Guilhem. "Contribution de différents éléments forestiers et non-forestiers de la trame de très vieux bois à la diversité des coléoptères saproxyliques." Thesis, Orléans, 2015. http://www.theses.fr/2015ORLE2017/document.

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La disparition et la fragmentation d’habitat sont considérées comme des causes majeures de l’érosion de la biodiversité.Les forêts sont parmi les plus riches écosystèmes terrestres de la planète. La simplification structurelle et la disparition d’éléments d’habitats clés qui résultent de leur exploitation mettent en péril la biodiversité qu’elles abritent.Grâce à l’analyse de différents jeux de données mutualisés entre plusieurs laboratoires et de deux jeux de donnéesoriginaux générés par mes travaux, l’objectif de cette thèse est d’évaluer le rôle joué par plusieurs éléments de la Trame de Tr

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Meyer, Matthias. "Trockenheitsreaktionen und holzanatomische Eigenschaften der Zitter-Pappel (Populus tremula L.) – Physiologie und QTL-Mapping." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-38142.

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Holz aus Kurzumtriebsplantagen (KUP) mit Pappeln (Populus spp.) kann eine bedeutende Rolle im Mix der Bioenergieressourcen in Deutschland spielen. Trotz eines günstigen Energieinput-Energieoutput-Verhältnisses ist das Erreichen wirtschaftlich zufriedenstellender Ergebnisse mit KUP jedoch auf den meisten potenziellen Anbauflächen durch hohe Ansprüche der Pappeln an die Wasserversorgung erschwert. Hohe Produktivitätsraten der Pappeln sind an einen hohen Wasserverbrauch gebunden und viele Trockenheitsanpassungen führen zu deutlichen Ertragsrückgängen. In der vorgestellten Arbeit wurde eine sechsj

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Білоногов, О. С. "Досвід вирощування садивного матеріалу в ДП «Сосницярайагролісгосп»". Thesis, Чернігів, 2020. http://ir.stu.cn.ua/123456789/20172.

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Білоногов, О. С. Досвід вирощування садивного матеріалу в ДП «Сосницярайагролісгосп» : дипломна робота : 205 Лісове господарство / О. С. Білоногов; керівник роботи Селінний М. М; Національний університет «Чернігівська політехніка», кафедра аграрних технологій та лісового господарства. – Чернігів, 2020. – 60 с.<br>Актуальність роботи зумовлена підвищенням уваги до питань, пов’язаних із лісовідновленням, лісорозведенням та озелененням населених пунктів, необхідністю вдосконалення виробництва садивного матеріалу у розсадниках ДП «Сосницярайагролісгосп» і на території України в цілому. Тенденц

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Маковійчук, О. Я. "Удосконалення технологій вирощування садивного матеріалу Сосни звичайної в ДП «Ріпкирайагролісгосп»". Thesis, Чернігів, 2020. http://ir.stu.cn.ua/123456789/20247.

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Маковійчук, О. Я. Удосконалення технологій вирощування садивного матеріалу Сосни звичайної в ДП «Ріпкирайагролісгосп» / О. Я. Маковійчук; керівник роботи Селінний М. М.; Національний університет «Чернігівська політехніка», кафедра аграрних технологій та лісового господарства. – Чернігів, 2020. – 68 с.<br>У розділі 1 описані теоретичні положення про особливості вирощування садивного матеріалу деревних видів. У 2 розділі наведена характеристика природно-кліматичних умов та лісового фонду ДП «Ріпкирайагролісгосп». Вплив умов вирощування на ріст і розвиток сіянців сосни звичайної та викладенн

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Paredes-Veloso, Gonzalo L. "An efficient formulation and solution method of the even-aged rotation and thinning problem /." 1986. http://hdl.handle.net/1957/10358.

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Pato, João Maria Casella Vaz. "The optimality of continuous cover versus rotation forestry in the presence of fire risk." Master's thesis, 2020. http://hdl.handle.net/10362/104281.

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This paper investigates the optimal harvesting decisions of a fire-exposed forest stand.An economic model is used to determine analytical continuous-time solutions for theoptimal schedule of thinnings and clearcuts. We offer new results by proposing that,while thinnings should be anticipated in the presence of fire hazard, forest rotations donot necessarily need to be shortened and may, under certain conditions, be lengthened.In fact, for sufficiently high levels of risk, clearcut forestry can be suboptimal, leading tothe adoption of a continuous cover regime.

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Thiele, Jan Christoph. "Design and Implementation of Environmental Information Systems - Three case studies for managing climate and land-use change in Forestry and Agriculture." Doctoral thesis, 2019. http://hdl.handle.net/11858/00-1735-0000-002E-E59F-8.

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Lin, Zhun-Zheng, and 林純正. "A Dynamic Reweighting Forest for Extreme Multi-Label Classification with Rotation Estimation." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/28670414358462435344.

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碩士<br>國立臺灣科技大學<br>資訊工程系<br>105<br>In recent years, data volume is getting larger along with the fast development of Internet technologies. Some datasets contain a huge number of labels, dimensions and data points. As a result, some of them cannot be loaded by typical classifiers, and some of them require very long and unacceptable time for execution. Extreme multi-label classification is designed for these challenges. Extreme multi-label classification diﬀers from traditional multi-label classification in a number of ways including the need for lower execution time, training at an extreme scal

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Baum, Sarah. "Phytodiversity in Short Rotation Coppice plantations." Doctoral thesis, 2012. http://hdl.handle.net/11858/00-1735-0000-000D-F05A-1.

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Yoshimoto, Atsushi. "An efficient optimizing model for determining thinning regime and rotation age using the stand projection system growth simulator /." 1987. http://hdl.handle.net/1957/10414.

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Wei, Hui-Chun, and 魏惠君. "Forest Optimal Rotation and Land Expectation Values under Carbon Sequestration and Radiation Budget." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/29196258904901307739.

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碩士<br>國立中山大學<br>經濟學研究所<br>101<br>International efforts strife to mitigate negative externalities caused by man released greenhouse gasses. Attributing an economical value to forest carbon sequestration might represent is an important strategy to achieve such goals. Such a policy is likely to impact optimal rotation periods in forestry management. However accounting for carbon sequestration alone is not sufficient; the lower surface albedo of forests compared to converted land causes a higher grade of heat absorption, which negatively affects the policy value of forests. Yet due to photosynthes

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Cousar, Paul K. "A multivariate control solution to the mixed species/diameter class thinning and final rotation problem /." 1992. http://hdl.handle.net/1957/10270.

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Yang, Hui-Yu, and 楊蕙宇. "Random Rotboost: An Ensemble Classification Method Based on Rotation Forest and AdaBoost in Random Subsets." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/zdwm2h.

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碩士<br>國立交通大學<br>科技管理研究所<br>107<br>Rotation forest algorithm has been developed for more than ten years. Many scholars have successively proposed improved versions, and in some fields, there have been application results. However, compared with other algorithms such as random forests, the disadvantage is that the calculation is complicated and time-consuming, the improvement of precision is quite limited as well. 　　This research work proposes a classifier ensemble method combining rotation forest and AdaBoost, which is called Random Rotboost. In the processing of training data, the data diversi

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Maplanka, Nokukhanya. "Investigating the use of soil and foliar analyses as indicators of productivity in short rotation plantations in South Africa." Thesis, 2006. http://hdl.handle.net/10539/1727.

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Student Number : 9906840R - MSc research report - School of Animal, Plant and Environmental Science<br>The global increased demand for forest products has led to an increase in the area of exotic fast-growing forest plantations. An understanding of nutrient cycling in plantations is essential to enhance their productivity. Sustainable forest productivity involves the managing of nutrients and genetic factors to maximize yields such that they are increasing or non-declining through the maintenance of soil quality and selection of superior tree species and breeds. Komatiland Forests Limited (K

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Chauvat, Matthieu [Verfasser]. "Soil biota during forest rotation : successional changes and implications for ecosystem performance / vorgelegt von Matthieu Chauvat." 2005. http://d-nb.info/974104183/34.

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