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Ambient and Potential Denitrification Rates in Marsh Soils of Northeast Creek and Bass Harbor Marsh Watersheds, Mount Desert Island, Maine (en Inglés)
U. S. Department Of The Interior (Autor)
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Ambient and Potential Denitrification Rates in Marsh Soils of Northeast Creek and Bass Harbor Marsh Watersheds, Mount Desert Island, Maine (en Inglés) - U. S. Department of the Interior
S/ 96,46
S/ 192,92
Ahorras: S/ 96,46
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Reseña del libro "Ambient and Potential Denitrification Rates in Marsh Soils of Northeast Creek and Bass Harbor Marsh Watersheds, Mount Desert Island, Maine (en Inglés)"
Nutrient enrichment from atmospheric deposition, agricultural activities, wildlife, and domestic sources is a concern at Acadia National Park on Mount Desert Island, Maine, because of the potential problems of degradation of water quality and eutrophication in estuaries. Degradation of water quality has been observed at Bass Harbor Marsh estuary in the park but only minimally in Northeast Creek estuary. Previous studies at Acadia National Park have estimated nutrient inputs to estuaries from atmospheric deposition and surface-water runoff, and have identified shallow groundwater as an additional potential source of nutrients. Previous studies at Acadia National Park have assumed that a certain fraction of the nitrogen input was removed through microbial denitrification, but rates of denitrification (natural or maximum potential) in marsh soils have not been determined. The U.S. Geological Survey, in cooperation with Acadia National Park, measured in-place (in-situ) denitrification rates in marsh soils in Northeast Creek and in Bass Harbor Marsh watersheds during summer 2008 and summer 2009. Denitrification was measured under ambient conditions as well as after additions of inorganic nitrogen and glucose.
