1. What is Desertification?: Definitions and Evolution of the Concept.- 2. "Desertification" or Land Degradation: Location and Dimension in Time, Vulnerabilitiy of Soil and Plants in Drylands.- 3. Dimensions in Space of "Desertification" or Land Degradation: The Degree and Specificity in Each Continent.- 4. Processes Leading to Soil Degradation and "Desertification".- 5. Prevention and Remendies.- 6. General Conclusion: The Need for a New Realism.- 7. New Developments in Desertification (September 1993).- References.- Author Index.- Subject hidex.
