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 30 for “"forest biomass"”.
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Gasification of in-Forest Biomass Residues
… Ponderosa Pine sawmill residues at high biomass loadings, short mean residence times (2-5 sec), and 27.7 MPa pressures. Each run with the SCWG system typically processed several 100 g of biomass/water slurry mixture. We evaluated the effect of operating temperatures (from 700K to 900K) …
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The simulation modeling of supply logistics of forest biomass in British Columbia
… energy sources has increased interests in forest biomass. During the last few years, the sever infestation of the Mountain Pine Beetle (MPB) within the Interior BC forests has led to huge volumes of dead wood that exceed the capacity of the lumber industry. One way to make the most value of …
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Crises unwasted: how policy entrepreneurs linked forest biomass to energy security in Colorado, 1998-2013
Colorado's forests are facing threats from wildfires, insect and disease epidemics and human encroachment. At the same time, Coloradans are facing energy security problems from fossil fuel price volatility, unintended consequences from continued fossil fuel dependence, problematic alternative, …
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The use of roll-off bins and a hook-lift equipped harwarder and truck for forest biomass utilization
… for utilization has long been a challenge for forest managers. Issues of accessibility and costs generally prevent biomass utilization. The traditional slash treatment is to pile and subsequently burn slash when environmental conditions allow. A harvesting system consisting of roll-off …
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The use of roll-off bins and a hook-lift equipped harwarder and truck for forest biomass utilization
… for utilization has long been a challenge for forest managers. Issues of accessibility and costs generally prevent biomass utilization. The traditional slash treatment is to pile and subsequently burn slash when environmental conditions allow. A harvesting system consisting of roll-off …
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Life cycle assessment e water footprint assessment nella progettazione di una filiera bosco-energia in Sardegna
… the chemical and physical characteristics of the forest biomass, the techno-economic viability of different plant configurations and the Life Cycle Assessment approach, for the sustainable design of a supply chain in its life cycle. The main results are relevant in the decision-making process, …
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FUSING GEDI LIDAR AND TANDEM-X INSAR OBSERVATIONS FOR IMPROVED FOREST STRUCTURE AND BIOMASS MAPPING
… opportunity to advance current global biomass estimates. However, gaps are expected between GEDI’s ground tracks, requiring the development of fusion-based methodologies to contiguously map forest biomass at satisfactory resolutions and accuracies. This dissertation is built on the …
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A COMPARATIVE FINANCIAL ANALYSIS OF FAST PYROLYSIS PLANTS IN SOUTHWEST OREGON
There are millions of acres of forestland in the Western United States that could benefit from fuel reduction treatments to improve forest health and reduce wildfire fuels. These treatments generate forest residues that are typically piled and burned. However, with increasing concerns about energy …
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A COMPARATIVE FINANCIAL ANALYSIS OF FAST PYROLYSIS PLANTS IN SOUTHWEST OREGON
There are millions of acres of forestland in the Western United States that could benefit from fuel reduction treatments to improve forest health and reduce wildfire fuels. These treatments generate forest residues that are typically piled and burned. However, with increasing concerns about energy …
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From Small to Large: Modeling at the Scale of Ecological Processes to Understand Temperate Forest Range Limits, Biomass, and Traits
… observational datasets, national forest inventories from temperate regions, with the aim to understand how forest communities may respond to future climate. In each chapter, the methodological focus on scale is conceptually linked with the ecological questions posed.</p><p>In the …
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Trattamento di Biomasse vegetali e algali finalizzato all'ottenimento di energia. Potenziali sviluppi in Sardegna
The biomass employ for energy purposes is the subject of debate and controversy, especially as regards the use of plant species of interest to food and agricultural land. Indeed, the cultivation of plant species for energy enables diversification of agricultural activities, the recovery of wild …
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ESTIMATION AND MODELING OF FOREST ATTRIBUTES ACROSS LARGE SPATIAL SCALES USING BIOMEBGC, HIGH-RESOLUTION IMAGERY, LIDAR DATA, AND INVENTORY DATA
The accurate estimation of forest attributes at many different spatial scales is a critical problem. Forest landowners may be interested in estimating timber volume, forest biomass, and forest structure to determine their forest's condition and value. Counties and states may be interested to learn …
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ESTIMATION AND MODELING OF FOREST ATTRIBUTES ACROSS LARGE SPATIAL SCALES USING BIOMEBGC, HIGH-RESOLUTION IMAGERY, LIDAR DATA, AND INVENTORY DATA
The accurate estimation of forest attributes at many different spatial scales is a critical problem. Forest landowners may be interested in estimating timber volume, forest biomass, and forest structure to determine their forest's condition and value. Counties and states may be interested to learn …
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Using machine learning methods to estimate spruce tree crown and DBH from aerial imagery
Spruce trees play a vital role in Canada’s forest ecosystems, which is widely used in construction, paper production, and other industries. However, spruce trees are particularly susceptible to wildfires, which pose a major risk to both natural landscapes and human settlements. Therefore, to …
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Assessing Greenhouse Gas Emissions Mitigation Potential through the use of Forest Bioenergy
Bioenergy production from forest resources offers opportunities to reduce greenhouse gas (GHG) emissions associated with fossil fuel use, reduce non-renewable energy consumption, and provide investment and employment in the forestry sector. These opportunities, however, must be considered within …
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Building resilience in forest-dependent communities through sustainable forest bioeconomy development
… to determine the characteristics of a future forest bioeconomy that will contribute to the resilience of forestry communities across northeastern Ontario to inform bioeconomy development in the region. A regional approach is taken to evaluate pathways for forest bioeconomy development over the …
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A study on above- and belowground biomass and carbon stocks as well as sequestration of mountain birch (Betula pubescens Ehrh.) along a chronosequence in southern Iceland
… has undertaken ambitious restoration and afforestation efforts for one century now. Afforestation has also been a central venture of the Icelandic government in order to meet the commitments assigned by the Kyoto Protocol, because vegetation represents an important carbon sink. The aims of …
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Fire dynamics in Amazonia
… correlated with fragmentation and losses of forest area. In addition, we found indications that the removal of forest biomass and the age of forest conversion are dominant factors.</p>
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