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 99 for “"tropical forests"”.
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The Carbon Density and Species Diversity of Myanmar's Tropical Forests
Tropical forests play a vital role in climate change because they may act as sinks or sources of CO2 depending on their management and responses to climate. Satellite imagery indicates that 3.8% of Myanmar's forests were lost between 2001 and 2020, but the extent to which commercial forestry is …
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China's Forest Product Imports and the Impacts on Tropical Forests
… a complete logging ban in its natural forests, further widening the domestic timber supply gap. Many observers highlight the large and expanding trade volume as a significant driver of deforestation and forest degradation, especially in tropical regions. This research investigates the …
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Economic incentives for the sustainable management and conservation of tropical forests
… for forest management and conservation in tropical countries (with a regional bias towards Latin America), including several papers focused on participatory forest management or community-based conservation. The papers show how my thinking has evolved from a focus on market and nonmarket …
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Carabid Beetle Ecology as a Function of Disturbance in Temperate and Tropical Forests
… of an ecosystem. With the majority of today’s forests recovering from past disturbance, knowledge of the changes and patterns of forest species in relation to disturbance events are important to our understanding of ecosystem change. The focus of this research is to examine the effects of …
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Temporal, spatial, spectral and polarisation characteristics of the SAR backscatter from regenerating tropical forests
… sinks and sources of carbon. Regenerating tropical forests are one of the major terrestrial carbon sinks as they are found growing quickly and are sequestering carbon from the atmosphere. Total forest biomass (which includes above and below ground living mass of plants and litter) is a …
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Quantifying the immediate carbon emissions from El Niño-mediated wildfires in humid tropical forests
… from uncontrolled wildfires in human-modified tropical forests can be considerable owing to high necromass fuel loads. Yet, data on necromass combustion during wildfires are severely lacking. The present study evaluated necromass carbon stocks before and after the 2015– 2016 El Niño in …
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Leaf Volatile Emissions Structure Tree Community Assembly and Mediate Climate Feedbacks in Tropical Forests
… via the latent heat of transpiration. Tropical forests contain half of global forest carbon, and actively cycle carbon and energy year round, making them critical components of the coupled biosphere-climate system. Climate change threatens tropical forests with rising temperatures and …
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Detection of Mortality in Tropical Forests Using Remote Sensing: From Treefall Gaps to Large Disturbances
… and intensity of natural disturbances in tropical forests continually re-shape forest structure. At small scale, branch or tree-falls gaps and subsequent recovery are important mechanisms for carbon cycling. At landscape scale, large disturbances (blow-downs) may also play a role on the …
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Using climate policies and carbon markets to save tropical forests : the case of Costa Rica
… have addressed greenhouse gas emissions from tropical deforestation. I argue that, to date, the international climate regime has failed to provide effective incentives to Costa Rica to finance its forestry reforms because of political decisions that favor forest protection in developed over …
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Species Richness and Ecological Diversity of Myxomycetes and Myxomycete-Like Organisms in the Tropical Forests of Brazil
<p>Tropical rain forests cover less than two percent of Earth's surface, yet they sustain the greatest diversity of living organisms on the planet. Tropical rain forests cover nearly 73% of the Brazilian territory and besides harboring some of the most biodiverse ecosystems on the planet, this vast …
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Carbon finance, tropical forests and the state : governing international climate risk in the Democratic Republic of Congo
This thesis examines how evolving norms of international climate change mitigation are translated into national forest governance policies and land management techniques in the Democratic Republic of Congo (DRC). The development of administrative mechanisms to reduce emissions from deforestation …
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Land-use effects on plant biodiversity and carbon cycling in seasonally dry tropical forests in north-eastern Brazil
… so-called ‘Caatinga’. It is the seasonally dry tropical forest located in north-eastern Brazil. Due to the semi-arid climate, livestock husbandry (mainly goats) is the main economic sector. However, besides high stocking densities free roaming animals aggravate the degradation of this ecosystem. …
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Patterns and processes in tropical forests: an analysis of forest structure and function from long-term permanent plots in Venezuela, Northern South America
… the longest-running monitoring plots in mature forests anywhere in Latin America and perhaps the tropics, including some sites that were established more than half a century ago. Since 2004, I have been part of four field campaigns (2004, 2009, 2012, 2016) to continue the monitoring of these …
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Beyond protected areas : assessing the role of legal reserves and permanent preservation areas for conserving tropical forests in private properties in the eastern Brazilian Amazon
… with no clear designation. The protection of forests on private land is therefore a vital part of any overall conservation strategy. In Brazil, the conservation of forest on private lands is regulated by the Brazilian Environmental Law (Law N° 12.651, 25 March 2012), commonly known as the …
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Soil respiration, microbial respiration and mineralisation in soils of montane rainforests of Southern Ecuador: influence of altitude
Impacts of land use and climate change in tropical forests on the global carbon budget are of principal interest in the recent research, as these forests amount to about 48 % of the world’s forested area. Interest has been focused on lowland tropical forests mainly, but tropical montane forests …
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Measuring tropical forest disturbance and regrowth with spaceborne lidar
The world’s tropical forests are vulnerable, facing threats of deforestation and anthropogenic disturbances, but they are also the site of enormous potential for forest growth. While these changes in tropical forest frontiers are widely agreed to have major implications for global carbon fluxes and …
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Understanding tropical forest dynamics through remote sensing and deep learning
Protection of tropical forests is key to achieving global climate and biodiversity conservation goals. They play an essential role in carbon sequestration, water cycling, and nutrient exchanges, thereby regulating atmospheric composition and global climate patterns. However, they are under …
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Understanding the role of plant hydraulic traits in ecological processes
Among all ecosystems tropical forests play a disproportionate role in Earth’s carbon cycle as they account for one third of total primary productivity. Global environmental change is causing novel precipitation patterns, shifts in the timing of rainfall events and an increase of the atmospheric …
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Effects of nutrient limitation on understory communities in a tropical forest
… diversity and abundance peak in mid-elevation tropical forests. Soil nutrient limitation is an important factor influencing plant communities and yet little is known about the factors influencing fern floristic composition and functional traits in montane tropical forests. My dissertation …
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