2024-03-29T00:54:06+01:00 https://library.wur.nl/oai
oai:library.wur.nl:wurpubs/401954 2024-03-09
urn:nbn:nl:ui:32-401954 2024-03-09 urn:nbn:nl:ui:32-401954/mods Ecosystem responses to reduced and oxidised nitrogen inputs in European terrestrial habitats Stevens C.J. aut Manning P. aut van den Berg L.J.L. aut de Graaf M.C.C. aut Wamelink G.W.W. 100604722 0000-0002-9795-2248 0000000387055487 aut Boxman A.W. aut Bleeker A. aut Vergeer P. aut Arroniz-Crespo M. aut Limpens J. 250178397 0000-0001-5779-0304 0000000391342497 aut Lamers L.P.M. aut Bobbink R. aut Dorland E. aut text info:eu-repo/semantics/article 2011 10.1016/j.envpol.2010.12.008 78751567764 000287273800001 en While it is well established that ecosystems display strong responses to elevated nitrogen deposition, the importance of the ratio between the dominant forms of deposited nitrogen (NHx and NOy) in determining ecosystem response is poorly understood. As large changes in the ratio of oxidised and reduced nitrogen inputs are occurring, this oversight requires attention. One reason for this knowledge gap is that plants experience a different NHx:NOy ratio in soil to that seen in atmospheric deposits because atmospheric inputs are modified by soil transformations, mediated by soil pH. Consequently species of neutral and alkaline habitats are less likely to encounter high NH4+ concentrations than species from acid soils. We suggest that the response of vascular plant species to changing ratios of NHx:NOy deposits will be driven primarily by a combination of soil pH and nitrification rates. Testing this hypothesis requires a combination of experimental and survey work in a range of systems. Wageningen Environmental Research WIAS WIMEK CL - Ecological Models and Monitoring Plant Ecology and Nature Conservation acidic grasslands atmospheric ammonia intracellular ph nitrate reduction pinus-sylvestris l soil solution chemistry species richness spruce picea-abies throughfall deposition vascular plants Wageningen Environmental Research WIAS WIMEK CL - Ecologische Modellen en Monitoring Plantenecologie en Natuurbeheer Environmental Pollution 159 3 665 676 02697491 urn:nbn:nl:ui:32-401954/obj 2024-03-09 http://purl.org/eprint/accessRights/RestrictedAccess