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- Title
N Storage and Cycling in Vegetation of a Forested Wetland: Implications for Watershed N Processing.
- Authors
Bischoff, Joseph M.; Bukaveckas, Paul; Mitchell, Myron J.; Hurd, T.
- Abstract
Pools and fluxes of N in wetland vegetation and soils were compared with an adjacent upland site to assess the relative importance of wetland versus upland landscapes in watershed N-retention in the Adirondack Mountains of New York (U.S.A.). The majority of N storage occurred in forest soils and wetland peat deposits (96 and 99% of total N in upland forests and wetlands, respectively). Annual N-uptake (49 kg N ha-1 yr-1) was greater for wetland vegetation than that of upland vegetation (30 kg N ha-1 yr-1). In the wetland the supply of N from mineralization (36 kg N ha-1 yr-1) was less than N-uptake; in contrast, upland N mineralization (76 kg N ha-1 yr-1) exceeded N vegetation uptake. Annual N-storage in peat was small due to low peat accretion rates. Wetlands acted as a sink for N and stored a disproportionally high fraction (15%) of catchment N in relation to their relatively small surface area (∼4%) within the catchment.
- Subjects
FORESTED wetlands; WETLANDS; UPLANDS; CAUSTOBIOLITHS; AQUATIC resources; FOREST soils
- Publication
Water, Air & Soil Pollution, 2001, Vol 128, Issue 1-2, p97
- ISSN
0049-6979
- Publication type
Article
- DOI
10.1023/A:1010358216481