Methods for assessment of soil degradation

INTRODUCTION Basic Concepts (Degradation, Resilience, Rehabilitation), R. Lal, W.H. Blum, C. Valentin, and B.A. Stewart SOIL DEGRADATION PROCESSES Soil Erosion Processes Water Erosion, J. Laflen and E. Roose Wind Erosion, E. Skidmore Erosion Modeling, C. Rose and G. McTainsh Physical Degradation Soil Structure, D. Gabriels and R. Horn Crusting, C. Valentin Hard Setting, C. Mullins Soil Compaction, I. Hakansson and W. Voorhees Chemical Degradation Soil Organic Matter and Nutrient Depletion, E. Paul Acidification, M. Sumner Salt Buildup, I. Szabolcs Sodic Soils, P. Rengasamy Soil Pollution and Contamination, T.J. Logan and B.R. Singh Acid Sulphate Soil, D. Dent and M.E.F. Van Mensvoort Mineland Degradation, W. Dick et al. Biological Degradation Soil Organic Matter and Biomass Carbon, J. Berthelin DYNAMICS AND MAPPING Long-Term Characterization: Monitoring and Modeling, J. Bouma Scaling and Extrapolation, L.T. West Remote Sensing and GIS, G.W. Petersen Mapping Soil Degradation at Different Scales, M.R. Hoosbeek et al. Revisiting GLASOD Methodology, R. Oldeman Sociological Approach, H.E. Dregne IMPACT OF SOIL DEGRADATION Agronomic, R. Lal Economic, J. Sanders and D. Southgate Economic Impact of Soil Erosion, P. Crosson Greenhouse Effect, R. Lal and C. Valentin Water Quality, G.M. Pierzynski and J.K. Koelliker CONCLUSIONS Holistic Approach to Combat Soil Degradation, C. Valentin and R. Lal Research and Development Priorities, R. Lal, W.H. Blum, C. Valentin, and B.A. Stewart INDEX