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.
Results
Showing 1 to 20 of 179 for “"forest cover"”.
-
Predicting forest cover types in Southwestern Virginia using topographic information
… between physical site factors and existing forest communities in southwestern Virginia. A pair of dichotomous keys was produced that "predicted" the forest type most likely to occur in an area based on topography. Maps of predicted forest types, using the Trayis (1982) and SAF (1980) …
-
Mapping and monitoring forest cover changes in Lao PDR using remote sensing
There has been a rapid change in forest and land cover globally, especially in tropical forests due to heavy deforestation. The highest rate of deforestation is found predominantly in the developing world. Tropical deforestation is a process of transforming forests into cleared land for other uses. …
-
Identifying Biophysical Drivers of Evapotranspiration for Forest Cover in a Mountainous Region
… the impacts of climate change and land-use/land-cover change on water availability, ecosystem health, and agricultural productivity. However, point-based, field-measured ET data often lacks sufficient spatial and temporal coverage, especially in complex mountainous terrains such as the …
-
The correlation between available deer browse, forest cover type, and forest site
… phase of a ten-year project designed to evaluate forest-wildlife relationships. The project was initiated in 1958 on the Jefferson National Forest, Broad Run Wildlife Management Area, Craig County, Virginia. The objective of the study was to determine if correlations existed between quantities of …
-
Transport and decomposition of allochthonous litter in Icelandic headwater streams: Effects of forest cover
… of the present study were to compare non-forested and forested catchments in Iceland in terms of litter transport into streams and litter decomposition within them. This was the first study made in Iceland on the terrestrial-aquatic interactions in forested ecosystems. The main study …
-
Forests under threat? Changes in land use and forest cover in rural western Uganda
Deforestation and land use change are widespread in western Uganda. However, the spatial patterns and time-series of change and the reasons why it is occurring remain to be fully investigated. In this work a combination of satellite imagery and social surveys is used to quantify forest gains and …
-
Influence of the thermal environment on forest cover selection and activity of moose in summer
I investigated summer thermal cover and the influence of the thermal environment on habitat selection and activity of moose (Alces alces). Hemispherical photography was used to estimate the sky view factor (SVF) and effective leaf area index (Le) of coniferous stands as a function of crown closure …
-
Revisiting patterns and processes of forest cover change in the tropics: a case study from southeast Mexico
… has been made in detecting rates of tropical deforestation, yet the relationship between visible patterns of forest change, multi-scalar human processes and the underlying drivers associated with them is poorly understood. Building on satellite imagery, a household livelihood survey and …
-
Forest cover change and its effects on the dependent local communities in Masese local forest reserve Sesheke district
Forest play a number of functions such as the provision of wood for timber and fuel, building materials, household implements, wild food, herbal medicines and many others to many rural communities in Zambia including Sesheke District. Forest also provides a wide range of services such as prevention …
-
Forest cover change and its effects on the dependent local communities in Masese local forest reserve Sesheke district
Forest play a number of functions such as the provision of wood for timber and fuel, building materials, household implements, wild food, herbal medicines and many others to many rural communities in Zambia including Sesheke District. Forest also provides a wide range of services such as prevention …
-
Habitat Associations and Demography of Small Mammals in 4 Forest Cover Types on Quantico Marine Corps Base, Virginia
… mammal demography and habitat associations in 4 forest cover types on Quantico Marine Corps Base, VA. Study sites included clearcut, shelterwood, mature-riparian, and mature-upland habitats. My primary objective was to determine whether the abundance, species composition and demographic …
-
Increasing forest cover amidst expanding commercial agriculture: An agent-based simulation of markets and rural livelihoods in the Indian Himalayas
… studies that link commercial agriculture with deforestation, analysis of household survey data and forest measurements in a group of 17 neighboring villages in the Indian Himalayas revealed a positive correlation between the level of commercial agriculture and forest cover. Commercial agriculture …
-
Dynamics of Forest Cover Extent, Forest Fragmentation and Their Drivers in the Lake Victoria Crescent, Uganda From 1989 to 2009
Despite the important values forests play in the tropics, sustainable forest management still remains a challenge as manifested through continued forest loss. The objective of this study was to provide information on the dynamics of forest cover and their drivers vital for enhancing sustainable …
-
The Influence of Reduced Forest Cover and Dissolved Oxygen on the Viability of Eggs from Eastern Hellbenders (<i>Cryptobranchus alleganiensis</i>)
Riparian deforestation is a significant threat to freshwater riverine ecosystems and sensitive fauna that depend on clean water. Sensitive aquatic species are vulnerable to the destruction of riparian forest cover which diminishes protection from pollutants, sedimentation, and solar radiation, …
-
Mapping the forest cover of Uganda with Spot (XS) and Landsat (ETM+) images : (a case study of Bwindi Impenetrable National Park, Uganda)
It is well established that land cover information is an essential component in the creation of spatial information systems. Lack of current land cover information constitutes a weakness in land resource management especially in developing countries like Uganda. In response to this need, the thesis …
-
American Woodcock Singing-ground Surveys in the western Great Lakes region: assessment of woodcock counts, forest cover types along survey routes, and landscape cover type composition.
… relationship between woodcock counts and land-cover composition along survey routes using an Information-Theoretic modeling framework. The amount of early successional forest, open space, and a landscape metric Interspersion and Juxtaposition Index (IJI) best explained counts in Wisconsin; in …
-
Observation des influences du changement du couvert forestier sur le comportement hydrologique de grands bassins versants tropicaux à l'aide de la télédétection numérique cas du bassin versant de Dong Nai, Viet Nam
… of a large tropical watershed following a forest cover variation has an important role in water resource management planning as well as for forest sustainable management. Traditional methods in forest hydrology studies are Experimental watersheds, Upstream-downstream, Experimental plots, …
-
Wildland fuel loading estimates along a gradient of forest cover types and landscape factors in Harpers Ferry National Historic Park, West Virginia and Rock Creek Park, Virginia, USA
… with high visitation rates have been asked if forests within their parks are in decline, or are at risk of decline, due to the number of standing and dead trees and the amount of downed and dead material on the forest floor. They have also vocalized concern about potential wildfire hazard in …
-
Variation In Habitat Thresholds: An Analysis Of Minimum Habitat Requirements Of North American Breeding Birds
… thresholds for a suite of North American, forest-associated, breeding birds. Records from Breeding Bird Atlases and the availability of remotely-sensed land cover data allowed me to compare habitat thresholds for 25 species across the states of Massachusetts, Michigan, New York, Ohio, …
-
Impact of protected forests on rural household fuel tree planting and deforestation: Chiro District, Ethiopia
… study aims at exploring the potential impact of forest protection intervention on rural households’ private fuel tree planting in Chiro district of eastern Ethiopia. The study results revealed a robust and significant positive impact of the intervention on farmers’ decisions to produce private …
Page 1 of 9