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Critical loads for nitrogen deposition on forest ecosystems |
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| Authors: | E. - D. Schulze W. De Vries M. Hauhs K. Rosén L. Rasmussen C. -O. Tamm J. Nilsson |
| Affiliation: | 1. Lehrstuhl Pflanzen?kologie, Universit?t Bayreuth, P. O. Box 10 12 51, 8580, Bayreuth, Federal Republic of Germany 2. Netherlands Soil Survey Institute, 6709, Wageningen, The Netherlands 3. Institut für Bodenkunde und Waldern?hrung, Universit?t G?ttingen, 3400, G?ttingen, Federal Republic of Germany 4. Dept. Forest Soils, Swedish University of Agriculture, 75007, Uppsala, Sweden 5. Lab. Environmental Sciences and Ecology, Technical University of Denmark, 2800, Lyngby, Denmark 6. Dept. of Ecology and Environmental Research, Swedish University of Agricultural Sciences, 75007, Uppsala, Sweden 7. National Environmental Protection Board, 171-25, Solna, Sweden |
| Abstract: | Critical loads for N deposition are derived from an ecosystem's anion and cation balance assuming that the processes determining ecosystem stability are soil acidification and nitrate leaching. Depending on the deposition of S, the parent soil material, and the site quality critical N deposition rates will range between 20 to 200 mmol m?2 yr?1 (3 to 14 kg ha?1 yr?1) on silicate soils and reach 20 to 390 mmol m?2 yr?1 (3 to 48 kg ha?1) on calcareous soils. |
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