CONTRIBUTORS Numbers in parentheses indicate the pages on which the authors’ contributions begin. M. Ashraf (45) Department of Botany, University of Agriculture, Faisalabad 30840, Pakistan H. R. Athar (45) Institute of Pure and Applied Biology, Bahauddin Zakariya University, Multan, Pakistan E. Ben-Dor (321) Department of Geography and Human Environment, Tel Aviv University, Tel Aviv, Israel 69978 J. Bouma (175) Wageningen University and Research Centre, Wageningen, The Netherlands P. Cannavo (131) INH, De´partement Ge´nie Agronomique, UR EPHOR, F-49045 Angers, France S. Chabrillat (321) GeoForchungsZentrum (GFZ) Potsdam, Section 1.4: Remote Sensing, Potsdam, Germany Julian J. C. Dawson (1) Institute of Biological & Environmental Sciences, School of Biological Sciences, University of Aberdeen, Aberdeen AB24 3UU, Scotland, United Kingdom; and Environment and Hydrology, School of Geosciences, University of Aberdeen, Aberdeen AB24 3UF, Scotland, United Kingdom J. A. M. Dematteˆ (321) Department of Soil Science, Sa˜o Paulo University, ESALQ, Piracicaba, Brazil J. A. de Vos (175) Wageningen University and Research Centre, Wageningen, The Netherlands Changming Fang (1) Coastal Ecosystems Research Station of Yangtze River Estuary, Ministry of Education Key Laboratory for Biodiversity and Ecological Engineering, The Institute of Biodiversity Science, Fudan University, Shanghai 200433, China P. J. C. Harris (45) Faculty of Business, Environment and Society, Coventry University, Coventry, United Kingdom ix x Contributors G. B. M. Heuvelink (175) Wageningen University and Research Centre, Wageningen, The Netherlands J. Hill (321) Remote Sensing Department, Faculty of Geography/Geosciences, Trier University, Trier, Germany T. R. Kwon (45) The National Institute of Agricultural Biotechnology, Suwon 441-707, Korea John B. Moncrieff (1) Atmospheric and Environmental Science, Edinburgh EH9 3JN, Scotland, United Kingdom Mustafa Pala (273) International Center for Agricultural Research in the Dry Areas (ICARDA), Aleppo, Syria V. Parnaudeau (131) INRA, UMR 1069 Sol-Agronomie-Spatialisation, F-35042 Rennes, France Jeff S. Piotrowski (111) Division of Biological Sciences, University of Montana, 507 Health Sciences, Missoula, Montana 59812 R. Reau (131) INRA, UMR 211 Agronomie, F-78850 Thiverval Grignon, France S. Recous (131) INRA, UR 1158 Agronomie, F-02000 Laon, France Matthias C. Rillig (111) Freie Universita¨t Berlin, Institut fu¨r Biologie, D-14195 Berlin, Germany John Ryan (273) International Center for Agricultural Research in the Dry Areas (ICARDA), Aleppo, Syria Murari Singh (273) International Center for Agricultural Research in the Dry Areas (ICARDA), Aleppo, Syria Pete Smith (1) Institute of Biological & Environmental Sciences, School of Biological Sciences, University of Aberdeen, Aberdeen AB24 3UU, Scotland, United Kingdom S. Sommer (321) European Commission—DG Joint Research Centre, Institute for Environment and Sustainability, Ispra, Italy Contributors xi M. P. W. Sonneveld (175) Wageningen University and Research Centre, Wageningen, The Netherlands J. J. Stoorvogel (175) Wageningen University and Research Centre, Wageningen, The Netherlands R. G. Taylor (321) School of Biological, Earth and Environmental Science, University of New South Wales, Sydney, Australia Benno P. Warkentin (239) Department of