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 514 for “"Forested"”.
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Ecological-Hydrological Feedback in Forested Wetlands
In forested wetlands, the biotic and abiotic consequences of water level variability is not well understood. The effects of flooding on carbon and water exchanges are important knowledge gaps where progress could benefit management of natural resources and predicting of changes in surface …
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Sediment in forested and logged gullies, coastal British Columbia
This study examines sediment storage and transfers in gullies of coastal British Columbia, and how logging affects sediment storage and transfers. Both fluvial and debris flow transport of sediment occur in gullies, and the amount of fluvial transport of sediment which occurs will affect the …
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Classification and modeling of forested terrain using LIDAR sensing
… well-defined. However, autonomous navigation on forested terrain presents many new challenges due to the variability and lack of structure in natural environments. This thesis presents a novel, robust approach for modeling the ground plane and main tree stems in forests, using 3-D point clouds …
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An analysis of palustrine forested wetland compensation effectiveness in Virginia
… for quantifying the effectiveness of palustrine forested wetland construction in Virginia. Wetlands constructed by ~ne Virginia Department of Transportation and the U.S. Army Corps of Engineers were surveyed and Wagner Road constructed wetland in Petersburg, Virginia was selected as the primary …
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Hydrologic Regime and Soil Property Interactions in a Forested Peatland
Globally, peatlands are vulnerable to degradation via drainage, with consequences for ecosystem structure and function such as increased fire vulnerability, soil oxidation, and altered vegetation composition. Peatland function is largely dependent on hydrologic regimes and their influences on the …
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DTM Generation in Forested Areas from Full-Waveform Airborne LiDAR Data
This study was aimed at improving overall quality of Digital Terrain Model (DTM) extraction from full-waveform LiDAR data. Specifically, the primary goal was to develop a novel method to improve DTM extraction by utilizing low amplitude pulses that are generated by terrain under vegetation, but …
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Effects of sediment upon benthic macroinvertebrates in forested northern Appalachian streams
Excess fine sediment negatively influences the fauna of North American streams. With the current emphasis on multiple-use forests, the question is not whether fine sediment is detrimental, but what is the threshold of fine sediment that is tolerable?;To determine a threshold tolerance of fine …
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Biogeochemical Controls on Carbon Fluxes in a Restored Coastal Freshwater Forested Wetland
… dynamics in a restored coastal freshwater forested wetland.
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Initial Assessment of Canopy Fuel Factors in Forested Areas of the Netherlands
… created the need to better understand how the forested communities and their structures will be affected by fire and to better estimate the impact of those fires. This study is part of a continuing collaboration between the Stephen F. Austin State University’s Arthur Temple College of Forestry …
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QUANTIFYING EFFECTS OF SEASONAL INUNDATION ON METHANE FLUXES FROM FORESTED FRESHWATER WETLANDS
… hydrologic variability on methane emissions from forested mineral soil wetlands to inform modeling techniques at different scales. In Chapter 1, I show the importance of inundation extent and duration as major drivers of wetland methane emissions, that methane fluxes have a non-linear relationship …
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Use of ancillary data in a Landsat classification of a forested wetland
Digital Landsat cover-type classifications have often proved less accurate than hoped for, or have been less detailed than needed. Recent research efforts have used additional data to supplement the four bands of Landsat MSS data in an attempt to increase the accuracies of computer classifications. …
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Factors affecting root system response to nutrient heterogeneity in forested wetland ecosystems
… system response to nutrient heterogeneity in forested wetland ecosystems of southeastern United States. Fine root biomass was not correlated with soil nutrient availability within wetland ecosystems, but was related to ecosystem-scale fertility. Root systems generally did not respond to P-rich …
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Hedonic Valuation of Forested Riparian Buffers Along Rivers in Northwestern North Carolina
This revealed preference study estimates the implicit value associated with owning a home along a river and tree coverage of riparian areas along rivers. The setting of this study is Ashe and Watauga Counties in Northwestern North Carolina and the two rivers that flow through those counties: New …
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