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Stable Aggregate Dynamics And Carbon Storage In Acidified Forest Soils: Influence Of Atmospheric Deposition And Conifer Conversion At The Fernow Experimental Forest, J E. Kemner
Graduate Theses, Dissertations, and Problem Reports
This research explored effects of ecosystem change from increased atmospheric nitrogen (N) deposition and stand conversion from mixed-species hardwood to Norway spruce in three experimental watersheds at the Fernow Experimental Forest (FEF). I measured soil aggregation and organic matter (OM) content to investigate the influence of forest fertilization in Watershed 3 (WS3), a hardwood forest receiving (NH4)2SO4 fertilizer, versus Watershed 7 (WS7), a natural hardwood forest. I compared WS7 to Watershed 6 (WS6), a converted Norway spruce (Picea abies) monoculture. I quantified WS6 and WS7 C and N ecosystem pools, including vegetation biomass, …
Long-Term Effects Of Chronic Additions Of Nitrogen, Sulfur And Lime On The Growth And Development Of A Central Appalachian Forest, Alexander J Storm
Long-Term Effects Of Chronic Additions Of Nitrogen, Sulfur And Lime On The Growth And Development Of A Central Appalachian Forest, Alexander J Storm
Graduate Theses, Dissertations, and Problem Reports
No abstract provided.
Monitoring Soil Response To Decreasing Acidic Deposition In A Western Adirondack Tributary Over A 16 Year Period, Michael Robert Antidormi
Monitoring Soil Response To Decreasing Acidic Deposition In A Western Adirondack Tributary Over A 16 Year Period, Michael Robert Antidormi
Legacy Theses & Dissertations (2009 - 2024)
Abstract
Landscape Factors That Affect Acid-Base Chemistry Of Adirondack Long-Term Monitoring (Altm) Lakes, Zheng Dong
Landscape Factors That Affect Acid-Base Chemistry Of Adirondack Long-Term Monitoring (Altm) Lakes, Zheng Dong
Theses - ALL
The Adirondack region has been affected by acid deposition for multiple decades. Atmospheric deposition of sulfur and nitrogen has decreased since the 1970s because of the 1970 and 1990 Clean Air Act Amendments (CAAA) as well as the NOX Budget Program. Previous studies have related the long-term changes in Adirondack lake water chemistry to decreases in atmospheric deposition and emission controls. However, relatively limited research has been conducted on the spatial patterns and the role of different landscape factors on the recovery of lake water chemistry in the Adirondacks. The objective of this study was to investigate the relations of …
Soil Chemistry Characterization Of Acid Sensitive Watersheds In The Great Smoky Mountains National Park, Mary Ann Elizabeth Grell
Soil Chemistry Characterization Of Acid Sensitive Watersheds In The Great Smoky Mountains National Park, Mary Ann Elizabeth Grell
Masters Theses
Atmospheric acidic deposition has negatively impacted many Appalachian watersheds in the eastern United States and soils play a key role in the biogeochemical processes that govern the fate and transport of the acidic pollutants. Thus, the collection of soil chemistry data, a previously lacking component, is essential to understand the soil processes related to the retention or release of basic and acidic ions and is imperative for the prediction of ecosystem recovery. Soil chemical properties related to acidification were characterized for 25 sites within eight acid-sensitive watersheds located in the Great Smoky Mountains National Park (GRSM). Relationships were identified by …
Long-Term Acid Deposition Effects On Soil And Water Chemistry In The Noland Divide Watershed, Great Smoky Mountains National Park, Usa, Meijun Cai
Doctoral Dissertations
Impacts of long-term acid deposition on soil and water chemistry are of particular concern in the Great Smoky Mountains National Park (GRSM), receiving some of the highest acid deposition rates in the eastern United States and limited by inadequate acid buffering capacity. In the GRSM, the Noland Divide watershed (NDW) has been monitored since 1991 for water chemistries of precipitation, throughfall, soil, and stream. The impacts of long-term acidic deposition on stream water quality in the NDW were investigated through: 1) development of an ion input-output budget; 2) analysis of trends and seasonal patterns for major ions; 3) comparison of …