naa a22 4500 510749771 CHVBK 20180411083100.0 cr unu---uuuuu 180411e20130901xx s 000 0 eng 10.1007/s11270-013-1664-4 doi (NATIONALLICENCE)springer-10.1007/s11270-013-1664-4 Differential Effects of Oxidised and Reduced Nitrogen on Vegetation and Soil Chemistry of Species-Rich Acidic Grasslands [Elektronische Daten] [Edu Dorland, Carly Stevens, Cassandre Gaudnik, Emmanuel Corcket, Suzanne Rotthier, Katherine Wotherspoon, Mari Jokerud, Vigdis Vandvik, Merel Soons, Mariet Hefting, Per Aarrestad, Didier Alard, Martin Diekmann, Cecilia Duprè, Nancy Dise, David Gowing, Roland Bobbink] Emissions and deposition of ammonia and nitrogen oxides have strongly increased since the 1950s. This has led to significant changes in the nitrogen (N) cycle, vegetation composition and plant diversity in many ecosystems of high conservation value in Europe. As a consequence of different regional pollution levels and of the increased importance of reduced N in the near future, determining the effect of different forms of N is an important task for understanding the consequences of atmospheric N inputs. We have initiated three replicated N addition experiments in species-rich, acidic grasslands spanning a climatic gradient in the Atlantic biogeographic region of Europe in Norway, Wales and France at sites with low levels of pollution. N was added in two doses (0 and 70kg Nha−1year−1 above background) and in three forms (oxidised N, reduced N and a 50-50 combination). After 2.5years of N additions, the effects of these treatments on plant biomass, plant nutritional status, soil pH and soil nutrient availability were determined. Impacts of the N additions were observed within the 2.5-year research period. In some cases, the first signs of differential effects of N form could also be demonstrated. In the French site, for example, grass biomass was significantly increased by the oxidised N treatments but decreased by the reduced N treatments. In the Norwegian site, the reduced N treatments significantly reduced soil pH, whereas oxidised N did not. Effects on nutrient availability were also observed. These experiments will be continued to elucidate the longer term impacts of N deposition on these grasslands. Springer Science+Business Media Dordrecht, 2013 European acidic grasslands nationallicence Nitrogen deposition nationallicence Nitrogen supply rate nationallicence Oxidised nitrogen nationallicence Reduced nitrogen nationallicence Species richness nationallicence Dorland Edu KWR Watercycle Research Institute, P.O.Box 1072, 3430 BB, Nieuwegein, The Netherlands aut Stevens Carly Lancaster Environment Centre, Lancaster University, LA1 4YQ, Lancaster, UK aut Gaudnik Cassandre UMR INRA 1202 Biodiversity, Genes and Communities, Equipe Ecologie des Communautés, University of Bordeaux 1, Bâtiment B8 - Avenue des Facultés, 33405, Talence, France aut Corcket Emmanuel UMR INRA 1202 Biodiversity, Genes and Communities, Equipe Ecologie des Communautés, University of Bordeaux 1, Bâtiment B8 - Avenue des Facultés, 33405, Talence, France aut Rotthier Suzanne Nature Conservation and Plant Ecology Group, Wageningen University, PO Box 47, 6700 AA, Wageningen, The Netherlands aut Wotherspoon Katherine Department of Environment, Earth and Ecosystems, The Open University, Walton Hall, MK7 6AA, Milton Keynes, UK aut Jokerud Mari Department of Biology, Ecological & Environmental Change Research Group, University of Bergen, P.O. Box 7800, 5020, Bergen, Norway aut Vandvik Vigdis Department of Biology, Ecological & Environmental Change Research Group, University of Bergen, P.O. Box 7800, 5020, Bergen, Norway aut Soons Merel Ecology and Biodiversity Group, Institute of Environmental Biology, Utrecht University, Padualaan 8, 3584 CH, Utrecht, The Netherlands aut Hefting Mariet Ecology and Biodiversity Group, Institute of Environmental Biology, Utrecht University, Padualaan 8, 3584 CH, Utrecht, The Netherlands aut Aarrestad Per Norwegian Institute for Nature Research, 7485, Trondheim, Norway aut Alard Didier UMR INRA 1202 Biodiversity, Genes and Communities, Equipe Ecologie des Communautés, University of Bordeaux 1, Bâtiment B8 - Avenue des Facultés, 33405, Talence, France aut Diekmann Martin Institute of Ecology, FB 2, University of Bremen, Leobener Str., 28359, Bremen, Germany aut Duprè Cecilia Institute of Ecology, FB 2, University of Bremen, Leobener Str., 28359, Bremen, Germany aut Dise Nancy School of Science and the Environment, Manchester Metropolitan University, M1 5GD, Manchester, UK aut Gowing David Department of Environment, Earth and Ecosystems, The Open University, Walton Hall, MK7 6AA, Milton Keynes, UK aut Bobbink Roland B-WARE Research Centre, Radboud University, PO Box 6558, 6503 GB, Nijmegen, The Netherlands aut Water, Air, & Soil Pollution Springer Netherlands 224/9(2013-09-01), 1-13 0049-6979 224:9<1 2013 224 11270 https://doi.org/10.1007/s11270-013-1664-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11270-013-1664-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Dorland Edu KWR Watercycle Research Institute, P.O.Box 1072, 3430 BB, Nieuwegein, The Netherlands aut NATIONALLICENCE 700 1- Stevens Carly Lancaster Environment Centre, Lancaster University, LA1 4YQ, Lancaster, UK aut NATIONALLICENCE 700 1- Gaudnik Cassandre UMR INRA 1202 Biodiversity, Genes and Communities, Equipe Ecologie des Communautés, University of Bordeaux 1, Bâtiment B8 - Avenue des Facultés, 33405, Talence, France aut NATIONALLICENCE 700 1- Corcket Emmanuel UMR INRA 1202 Biodiversity, Genes and Communities, Equipe Ecologie des Communautés, University of Bordeaux 1, Bâtiment B8 - Avenue des Facultés, 33405, Talence, France aut NATIONALLICENCE 700 1- Rotthier Suzanne Nature Conservation and Plant Ecology Group, Wageningen University, PO Box 47, 6700 AA, Wageningen, The Netherlands aut NATIONALLICENCE 700 1- Wotherspoon Katherine Department of Environment, Earth and Ecosystems, The Open University, Walton Hall, MK7 6AA, Milton Keynes, UK aut NATIONALLICENCE 700 1- Jokerud Mari Department of Biology, Ecological & Environmental Change Research Group, University of Bergen, P.O. Box 7800, 5020, Bergen, Norway aut NATIONALLICENCE 700 1- Vandvik Vigdis Department of Biology, Ecological & Environmental Change Research Group, University of Bergen, P.O. Box 7800, 5020, Bergen, Norway aut NATIONALLICENCE 700 1- Soons Merel Ecology and Biodiversity Group, Institute of Environmental Biology, Utrecht University, Padualaan 8, 3584 CH, Utrecht, The Netherlands aut NATIONALLICENCE 700 1- Hefting Mariet Ecology and Biodiversity Group, Institute of Environmental Biology, Utrecht University, Padualaan 8, 3584 CH, Utrecht, The Netherlands aut NATIONALLICENCE 700 1- Aarrestad Per Norwegian Institute for Nature Research, 7485, Trondheim, Norway aut NATIONALLICENCE 700 1- Alard Didier UMR INRA 1202 Biodiversity, Genes and Communities, Equipe Ecologie des Communautés, University of Bordeaux 1, Bâtiment B8 - Avenue des Facultés, 33405, Talence, France aut NATIONALLICENCE 700 1- Diekmann Martin Institute of Ecology, FB 2, University of Bremen, Leobener Str., 28359, Bremen, Germany aut NATIONALLICENCE 700 1- Duprè Cecilia Institute of Ecology, FB 2, University of Bremen, Leobener Str., 28359, Bremen, Germany aut NATIONALLICENCE 700 1- Dise Nancy School of Science and the Environment, Manchester Metropolitan University, M1 5GD, Manchester, UK aut NATIONALLICENCE 700 1- Gowing David Department of Environment, Earth and Ecosystems, The Open University, Walton Hall, MK7 6AA, Milton Keynes, UK aut NATIONALLICENCE 700 1- Bobbink Roland B-WARE Research Centre, Radboud University, PO Box 6558, 6503 GB, Nijmegen, The Netherlands aut NATIONALLICENCE 773 0- Water, Air, & Soil Pollution Springer Netherlands 224/9(2013-09-01), 1-13 0049-6979 224:9<1 2013 224 11270 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer