Critical loads and their exceedances at intensive forest monitoring sites in Europe
2008
Lorenz, Martin | Nagel, Hans-Dieter | Granke, Oliver | Kraft, Philipp
Intensive forest monitoring by means of harmonised methods has been conducted in Europe for more than a decade. Risks of atmospheric nitrogen and sulphur deposition are assessed by means of calculations of critical loads and their exceedances. In the present study throughfall and bulk deposition of nitrate (N-NO3), ammonium (N-NH4) and sulphate (S-SO4) show marked spatial patterns and temporal trends. In the period of observation (1999-2004), sulphate deposition on intensive monitoring plots decreased by about one quarter. This is in line with the reduction of S deposition by 70% since 1981 in Europe as a result of successful air pollution control politics under the Convention on Long-range Transboundary Air Pollution (CLRTAP). However, sulphate and especially nitrate and ammonium deposition were found to still exceed critical loads at many forest sites, indicating a continued need for further implementation of air pollution abatement strategies.
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书目信息
出版者 Elsevier
ISSN 0013-9327 | 0269-7491