H. E. Dregne

• Desertification of arid lands
• Dryland agriculture
• Impact of land degradation on future world food production
• Soils of arid regions
• Boron in relation to growth and composition of table beet (Beta vulgaris L.)
• Combating desertification
• Degradation and Restoration of Arid Land
• Natural habitats and ecosystems management in drylands