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
|