caa a22 4500 467885230 CHVBK 20180406152732.0 cr unu---uuuuu 170328e20060201xx s 000 0 eng 10.1007/s10021-005-0052-3 doi (NATIONALLICENCE)springer-10.1007/s10021-005-0052-3 Simulation of Critical Loads for Nitrogen for Terrestrial Plant Communities in The Netherlands [Elektronische Daten] [H. F. van Dobben, A. van Hinsberg, E. P. A. G. Schouwenberg, M. Jansen, J. P. Mol-Dijkstra, H. J. J. Wieggers, J. Kros, W. de Vries] This paper describes a new method to derive nitrogen critical loads for vegetation, and its application to The Netherlands. An ‘inverted' form of the soil chemical model SMART2 was used to estimate atmospheric nitrogen deposition at the critical conditions for 139 terrestrial vegetation types (associations) occurring in northwestern Europe, using an iterative search procedure. The critical conditions are the lower end of the pH range, and the upper end of the nitrogen availability range for each vegetation type. The critical load is assumed to be the nitrogen deposition that results in the critical conditions. The critical load values were subjected to a sensitivity and uncertainty analysis. Sensitivity analysis showed that the estimated critical N load mainly depends on the vegetation type and to a lesser extent on the soil type and the critical N availability. Of these variables N availability, which was estimated from Ellenberg's indicator scale, contributes most to the uncertainty. The critical load averaged over all vegetation types and soil types is estimated to be 23 ± 7 kg N ha−1y−1. This is a rather reliable value because its uncertainty is small and it is in agreement with empirical estimates of critical loads. Critical loads per vegetation type are less reliable because they are not correlated to empirical values, although the ranges of simulated and empirical values usually overlap. At the site level, uncertainty becomes very large and it is not possible to determine critical loads with any practical significance. The uncertainties can only be reduced if more data become available on the abiotic response per species under field conditions, at least to nitrogen availability and soil pH. Springer Science+Business Media, Inc., 2006 vegetation nationallicence soil nationallicence model nationallicence nitrogen nationallicence acidity nationallicence critical load nationallicence Netherlands nationallicence van Dobben H. F. Alterra Green World Research, POB 47, 6700, Wageningen, AA, The Netherlands aut van Hinsberg A. National Institute for Public Health and Environment, Bilthoven, The Netherlands aut Schouwenberg E. P. A. G. Alterra Green World Research, POB 47, 6700, Wageningen, AA, The Netherlands aut Jansen M. Biometris Quantitative Methods in Life and Earth Sciences, Wageningen, The Netherlands aut Mol-Dijkstra J. P. Alterra Green World Research, POB 47, 6700, Wageningen, AA, The Netherlands aut Wieggers H. J. J. Alterra Green World Research, POB 47, 6700, Wageningen, AA, The Netherlands aut Kros J. Alterra Green World Research, POB 47, 6700, Wageningen, AA, The Netherlands aut de Vries W. Alterra Green World Research, POB 47, 6700, Wageningen, AA, The Netherlands aut Ecosystems Springer-Verlag; www.springer-ny.com 9/1(2006-02-01), 32-45 1432-9840 9:1<32 2006 9 10021 https://doi.org/10.1007/s10021-005-0052-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10021-005-0052-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- van Dobben H. F. Alterra Green World Research, POB 47, 6700, Wageningen, AA, The Netherlands aut NATIONALLICENCE 700 1- van Hinsberg A. National Institute for Public Health and Environment, Bilthoven, The Netherlands aut NATIONALLICENCE 700 1- Schouwenberg E. P. A. G. Alterra Green World Research, POB 47, 6700, Wageningen, AA, The Netherlands aut NATIONALLICENCE 700 1- Jansen M. Biometris Quantitative Methods in Life and Earth Sciences, Wageningen, The Netherlands aut NATIONALLICENCE 700 1- Mol-Dijkstra J. P. Alterra Green World Research, POB 47, 6700, Wageningen, AA, The Netherlands aut NATIONALLICENCE 700 1- Wieggers H. J. J. Alterra Green World Research, POB 47, 6700, Wageningen, AA, The Netherlands aut NATIONALLICENCE 700 1- Kros J. Alterra Green World Research, POB 47, 6700, Wageningen, AA, The Netherlands aut NATIONALLICENCE 700 1- de Vries W. Alterra Green World Research, POB 47, 6700, Wageningen, AA, The Netherlands aut NATIONALLICENCE 773 0- Ecosystems Springer-Verlag; www.springer-ny.com 9/1(2006-02-01), 32-45 1432-9840 9:1<32 2006 9 10021 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer