| Autor: |
Johannes Eichhorn, Thomas Haussmann, Uwe Paar, Gert Jan Reinds, Wim de Vries |
| Jazyk: |
angličtina |
| Rok vydání: |
2001 |
| Předmět: |
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| Zdroj: |
The Scientific World Journal, Vol 1, Pp 423-432 (2001) |
| Druh dokumentu: |
article |
| ISSN: |
1537-744X |
| DOI: |
10.1100/tsw.2001.325 |
| Popis: |
The article reviews effects of nitrogen (N) deposition on beech forest ecosystems in Europe. On the basis of beech plots of the Pan-European Monitoring Programme of ICP Forests and the EU, the deposition of N compounds as well as input-output budgets are listed and compared with studies in North America. The authors also discuss the critical threshold for N leaching. At present, N is leached in 10% of the plots evaluated. An in-depth evaluation of a beech plot in central Germany is presented. The high N leaching results in a considerable increase (four times higher N content in 2000 compared to 1965) in the export of nitrate from the beech forests from a nearby source. Finally, ecophysiological indicators (N content in beech leaves, fine root system, N content, root/shoot ratios) are discussed as a result of high N input. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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