Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 1847 for “"forests"”.
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Streaming Random Forests
… ensemble algorithm, Streaming Random Forests, an extension of the Random Forests algorithm by Breiman, which is a standard classification algorithm. Our algorithm is designed to handle multi-class classification problems. It is able to deal with data streams having an evolving nature …
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Transformation of degraded forests into semi-natural production forests in northern Thailand
… on the degraded Deciduous Dipterocarp-Oak Forests (DDF) in northern Thailand. The aim was to provide information on site and stand conditions and to propose and assess improvement treatments to transform these forests into semi-natural production forests. <br>As a consequence of extensive …
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National forests are (not) parks : managing amenity migration to America's national forests
U.S. National Forests are natural amenities that create a pull factor for in-migration in adjacent counties. People are drawn to the scenic beauty, clean air, open space, and recreational access. Since the 1970s, researchers have described the phenomenon of amenity migration -- the movement of …
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Unsupervised learning of morphological forests
This thesis focuses on unsupervised modeling of morphological families, collectively comprising a forest over the language vocabulary. This formulation enables us to capture edge-wise properties reflecting single-step morphological derivations, along with global distributional properties of the …
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Real-time generation of procedural forests
… the many individual tree models required for forests requires a large numbers of artists and a great deal of time. In order to reduce modelling time procedural methods are often used. Such methods allow tree models to be created automatically and relatively quickly, albeit at potentially …
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Sediment erosion and deposition within mangrove forests
… retention and carbon storage in mangrove forests.
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Trace Greenhouse Gas Fluxes in Upland Forests
… and tree species influence CH₄ and N₂O fluxes in forests on free-draining soil. Soil and stem CH₄ and N₂O fluxes were measured in lowland tropical rainforest in Panama, Central America and temperate woodland in the UK, using chambers installed on the forest floor or strapped to individual stems of …
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Nitrogen deposition and nitrification in coniferous forests’
The increased inorganic nitrogen (N) deposition in the last decades has become a major concern for the health of forest ecosystems. High anthropogenic N emissions, mainly from fossil fuel combustion and livestock agriculture, have resulted in both high gaseous concentrations and high deposition in …
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Vulnerability of Indigenous Forests in Changing Landscapes
Indigenous forests all over the world are suffering habitat alteration, loss of original extensions, and increase of isolation levels, affecting their existence and sustainability. In New Zealand about 70% of the original forest cover has been destroyed since human settlement, converting them to a …
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Conditional Stein’s method and maximal spanning forests
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-09-01 without embargo terms
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Dynamics of two South African floodplain forests
… of riparian biota, especially riverine forests. There remains, however, a lack of ecological understanding of riparian forests in Africa, especially tree regeneration requirements, community level patterns and water relations. The major determinants of tree distribution have yet to be …
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Force-modulated growth of carbon nanotube forests
… suggest that the quality and growth rate of CNT forests may be limited by CNT-CNT mechanical coupling and force transmission to the catalyst, and motivate future work using controlled forces to manipulate the quality and morphology of CNTs for various applications.
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Sediment Erosion and Deposition Within Mangrove Forests
… retention and carbon storage in mangrove forests.
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MODELING APPROACHES FOR CLIMATE MITIGATION IN ALPINE FORESTS.
… investigates the complex relationship between forests, climate change and management, focusing on their interactions through the lens of ecosystem services and sustainability. The aim of the thesis is to analyse the role of alpine forests, harvested wood product and forest management in climate …
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Three essays on weather shocks, nutrition and forests
… countries. In this dissertation, I determine how forests affect a household's ability to cope with shocks, estimate how agricultural input use changes after shocks, and explore a novel explanation for high rates of undernutrition within food-producing households. In the first essay, using data …
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