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 56 for “"land cover changes"”.
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Dynamics of land use and land cover changes in China
… provided by natural capital, and certain land use and land cover changes (LUCC) in China. With better understanding of these trade-offs, this thesis contributes to optimum management for sustaining ecosystem services and supporting socio-economic development. The three case study areas are …
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Dynamics and drivers of land use land cover changes in Bangladesh
Land is scarce in Bangladesh: Bangladesh occupies ~0.03 % of world’s land area, but supports over ~2% of human population. This high population to land ratio, combined with socioeconomic development has placed tremendous pressure on Bangladesh’s land resources for food, feed, and fuel. This study …
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Remote sensing of land cover changes in the Jeffara Plain, North-West Libya
… examines the impact of water table change on land cover (particularly agricultural activities) in part of the Jeffara Plain NW Libya, during the period 1988 to 2000 using remotely sensed data. Landsat Thematic Mapper 5 images from 1988, 1992, 1996 and 2000 have been used in addition to various …
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Using land cover changes to mitigate the impacts of hot temperatures in South African cities
… African cities and investigating the impact of land cover changes on both the current distribution of temperatures, and in reducing future temperatures. The study analyses observation and simulation datasets, using Landsat 8 satellite observations to produce high-resolution land surface …
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The role of historical land-cover changes as a mechanism for global and regional climate change
… analysis as to the effect of historical land-cover change on regional and global climates. We discuss methods for determining historical vegetation change and present results from model simulations at the global and regional scale which compare climates generated using currently observed …
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Modeling the temperature response of small rivers to land cover changes using satellite-based spatial data
The influence of urbanization and land cover alteration on water quality, including river temperatures, has important ecological implications. However, there is a dearth of information on temperature of rivers smaller than about 60 m wide (approximately fifth order and below), which constitute …
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Responses of boreal fire regimes to climatic and land-cover changes: perspectives from multiple spatiotemporal scales
… To assess top-down (climate) and bottom-up (land cover) controls, I conducted paleoecological analyses spanning the past 7000 years and landscape analyses of the past decade. I used macrocharcoal to reconstruct fire history based on lake-sediment cores collected from 24 lakes in south-central …
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Impacts of land use land cover changes in mountainous catchments – a case study of Klaserie Catchment, Mariepskop Mountain
Land use and land cover (LULC) change remains a central driver of ecological transformation, particularly in semi-arid mountainous catchments where terrain complexity, limited data availability, and climate variability intersect with increasing human population and activity. This study examines the …
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Impacts of Land Cover Changes on Ecosystem Services Delivery in the Black Hills Ecoregion from 1950 to 2010
<p>Environmental degradation generated by land use choices and human activities is the first driver of change in the provision of ecosystem goods and services. One of the challenges in ecosystem services research is to evaluate the contribution of each land cover unit to ecosystem services delivery …
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Oil palm expansion and land cover changes in the Peruvian Amazon: implications for forest conservation and fire mitigation
Land cover change is a major challenge for forest conservation in Amazonia. Forest cover loss and anticipated changes in climate are expected to increase fire incidence in Amazonia with detrimental consequences to human health, climate, and natural ecosystems. In this dissertation I developed …
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Determining Heat Island Response to Varying Land Cover Changes Between 2004 and 2017 Within the City of Reno, Nevada
… of this research was to investigate the role of land cover changes through time in influencing spatial variability of the surface urban heat island of the metropolitan area of Reno-Sparks, Nevada. Free and widely available thermal data from Landsat 7 ETM+ (Enhanced Thematic Mapper Plus) sensor …
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Simulating the Impacts of Land-Use Land-Cover Changes on Cropland Carbon Fluxes in the Midwest of the United States
<p>Understanding the major drivers of the cropland carbon fluxes is important for carbon management and greenhouse gas mitigation in agriculture. Past studies found that agricultural land-use and land-cover (LULC) changes, such as changes in cropland production technologies, tillage practices, and …
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Impacts of Land Use and Land Cover Changes, and Climate Variability on Hydrology and Soil Erosion in the Upper Ruvu Watershed, Tanzania
Land alterations including deforestation, unsustainable land management practices and an increase in cultivated areas have occurred in the Upper Ruvu watershed in recent decades threatening water and natural resources. This study, which used a combination of remote sensing techniques, field …
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Multi-scale analysis of urban wetland changes using satellite remote sensing techniques
This study investigates urban wetland-cover changes in the Kansas City metropolitan area with analyses at various spatial and temporal scales. Not many studies fully addressed multi-scale urban wetland-cover dynamics in both the temporal and spatial dimension. The objective was to understand how …
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Land Cover Change and the Breeding Bird Survey: Rates of Change in Relation to Roads
… transects. Based on BBS assumptions that land cover is the same adjacent to roads as it is away from roads the overall goal of this study is to determine if landscape changes have occurred on a broad scale over an expanded time period and if these landscape changes have been similar …
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Historical Land Cover Impacts on Water Quality in the Provo River Watershed, 1975 - 2002
The Provo River watershed has experienced land cover change over the past several decades. Land cover influences water quality inasmuch as land cover determines the type and quantity of non-point source (NPS) pollutants that may enter the water. This study examines the historical impacts of land …
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Assessment of the impacts of climate change, land cover transition, and internal climate variability on the hydrology of a forested watershed
In this study, the impacts of climate and land cover (LC) changes on the hydrologic processes of the Batchawana watershed in Central Ontario are assessed. Batchawana is a snow-dominated forested watershed with coniferous, deciduous and mixed trees and numerous small lakes. A semi-distributed …
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Climate Change and Dissolved Organic Matter in Subarctic Lakes: Relevance to Methylmercury Bioavailability
… decreases MeHg bioavailability. Climate-induced changes were measured at the landscape level using ArcGIS; land-cover changes between 2005-2010 were assessed around lakes in Mackenzie Valley, NWT. The observed changes, a 10% increase in forest-classified area and up to 15% decrease in wetland …
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Examining Land Use/Land Cover Change and Potential Causal Factors in the Context of Climate Change in Sagarmatha National Park, Nepal
… growing tourism and global warming, the fragile landscape of the Himalayas is under immense pressure because of rapid land cover changes in developing countries like Nepal. Remotely sensed data combined with ethnographic knowledge are useful tools for studying such changes. The quantitative …
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Challenges of regional hydrological modelling in the Elbe River basin : investigations about model fidelity on sub-catchment level
… to evaluate local precipitation alterations by land cover changes, and remotely sensed surface temperatures allow for an independent view on the evapotranspiration landscape. The overall insight is that spatially explicit hydrological modelling of such a large river basin requires a lot of local …
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