caa a22 4500 445384018 CHVBK 20180317143026.0 cr unu---uuuuu 170323e20111201xx s 000 0 eng 10.1007/s10021-011-9477-z doi (NATIONALLICENCE)springer-10.1007/s10021-011-9477-z Soil Carbon and Nitrogen Storage in Upper Montane Riparian Meadows [Elektronische Daten] [Jay Norton, Laura Jungst, Urszula Norton, Hayley Olsen, Kenneth Tate, William Horwath] Though typically limited in aerial extent, soils of high-elevation riparian wetlands have among the highest density of soil carbon (C) and nitrogen (N) of terrestrial ecosystems and therefore contribute disproportionally to ecosystem services such as water retention, forage production, wildlife habitat, and reactive N removal. Because much soil C and N is stored in labile forms in anaerobic conditions, management activities or environmental changes that lead to drying cause mineralization of labile soil organic matter, and loss of C and N. Meadows are focal points of human activities in mountain regions, often with incised stream channels from historically heavy grazing exacerbated by extreme runoff events. To quantify soil C and N stores in montane riparian meadows across hydrologic conditions, 17 meadows between 1950- and 2675-m elevation were selected in the central Sierra Nevada Range, California, that were classified using the proper functioning condition (PFC) system. Results indicate that C and N density in whole-solum soil cores were equivalent at forest edge positions of properly functioning, functioning at-risk, and nonfunctioning condition. Soils under more moist meadow positions in properly functioning meadows have at least twice the C, N, dissolved organic C, and dissolved organic N (DON) than those under nonfunctioning meadows. Densities of total N and DON, but not C, of functioning at-risk meadows are significantly lower (P<0.05) than those of properly functioning meadows at mid-slope and stream-bank positions, suggesting accelerated loss of N early in degradation processes. Though variable, the soil attributes measured correspond well to the PFC riparian wetland classification system. Springer Science+Business Media, LLC, 2011 soil organic matter nationallicence riparian meadows nationallicence wetlands nationallicence soil organic carbon nationallicence carbon and nitrogen storage nationallicence Sierra Nevada wet meadows nationallicence Norton Jay Department of Renewable Resources, University of Wyoming, Dept. 3354, 1000 E. University Avenue, 82071, Laramie, Wyoming, USA aut Jungst Laura Helena National Forest, 2880 Skyway Drive, 59602, Helena, Montana, USA aut Norton Urszula Department of Plant Sciences, University of Wyoming, 82071, Laramie, Wyoming, USA aut Olsen Hayley Department of Renewable Resources, University of Wyoming, Dept. 3354, 1000 E. University Avenue, 82071, Laramie, Wyoming, USA aut Tate Kenneth Department of Plant Science, University of California Davis, 95616, Davis, California, USA aut Horwath William Department of Land, Air, and Water Resources, University of California Davis, 95616, Davis, California, USA aut Ecosystems Springer-Verlag 14/8(2011-12-01), 1217-1231 1432-9840 14:8<1217 2011 14 10021 https://doi.org/10.1007/s10021-011-9477-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10021-011-9477-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Norton Jay Department of Renewable Resources, University of Wyoming, Dept. 3354, 1000 E. University Avenue, 82071, Laramie, Wyoming, USA aut NATIONALLICENCE 700 1- Jungst Laura Helena National Forest, 2880 Skyway Drive, 59602, Helena, Montana, USA aut NATIONALLICENCE 700 1- Norton Urszula Department of Plant Sciences, University of Wyoming, 82071, Laramie, Wyoming, USA aut NATIONALLICENCE 700 1- Olsen Hayley Department of Renewable Resources, University of Wyoming, Dept. 3354, 1000 E. University Avenue, 82071, Laramie, Wyoming, USA aut NATIONALLICENCE 700 1- Tate Kenneth Department of Plant Science, University of California Davis, 95616, Davis, California, USA aut NATIONALLICENCE 700 1- Horwath William Department of Land, Air, and Water Resources, University of California Davis, 95616, Davis, California, USA aut NATIONALLICENCE 773 0- Ecosystems Springer-Verlag 14/8(2011-12-01), 1217-1231 1432-9840 14:8<1217 2011 14 10021 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer