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 7 of 7 for “"Acidic Deposition"”.
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The effects of accelerated soil acidification on aggrading temperate deciduous forests: The Fernow Experimental Forest Long Term Soil Productivity (LTSP) Study at 13 years
… have experienced decades of elevated inputs of acidic compounds from the atmosphere. As a result, I used the Fernow Experimental Forest Long Term Soil Productivity (LTSP) experiment near Parsons, WV to determine how ongoing acidic deposition may affect total ecosystem carbon (C) storage, stand …
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Uncertainty in Ecological Simulation Modeling: Applications to Conservation of Endangered Species and Forest Growth
… entities. The analysis of the effect of acidic deposition on the site index of a red pine stand is employed to illustrate this methodology. It is argued that these are valuable methods for conducting process model-based experiments.
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Effects of Acid Deposition and Changing Climate on the Hydrochemistry and Critical Loads of Watersheds in the Adirondack Region of New York
<p>Despite decreases in acidic deposition since the 1970s, the recovery of surface waters from acidification has been limited primarily due to the depletion of exchangeable base cations, net mineralization of organic sulfur and nitrogen and release of previously retained SO42- and NO3-, and …
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Status and remediation of mercury in fish and aquatic ecosystems
… as some areas are recovering from the effects of acidic deposition while the entire region is increasingly influenced by climate change. In order to better understand the drivers and trends of mercury dynamics in New York State, my research was conducted in three phases: 1) the impact of lime …
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Developing Critical Loads and Dynamic Critical Loads for Acidification for Watersheds in the Adirondack region of New York and Great Smoky Mountain National Park (GRSM)
… impacted by high sulfate, nitrate and ammonium deposition. In this study, a biogeochemical model (PnET-BGC) was applied to 20 watersheds in the Adirondack region and 12 watersheds in Great Smoky Mountain National Park (GRSM) to calculate CLs and DCLs. I evaluated ecosystem changes in response to …
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Consequences of nitrogen fertilization and soil acidification from acid rain on dissolved carbon and nitrogen stability in the unglaciated Appalachian Mountains
… source. We used a wide, chronic gradient of N deposition (5.5 – 31 kg N ha⁻¹ yr-1) to explore patterns in carbon (C) and N cycling in light of recognized biogeochemical responses to acidic deposition. Specifically, we examined the response of key controls on dissolved C and N stability because …
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Long-term changes in forest soils of Maine and Illinois
… soil in central Illinois in response to reduced acidic deposition inputs; 2) assess chemical changes in a bottomland floodplain soil in central Illinois that receives periodic sediment inputs; and 3) examine soil formation processes in a Maine spruce-fir soil. This thesis is divided into two …