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The Theory of Himalayan Environmental Degradation: what is the nature of the perceived crisis? 2. The Himalayan Region: a geographical overview 3. When did Deforestation Occur? An historical perspective on Himalayan forestcover changes 4. Perceived Pressures on the Himalayan Forests and Their Role as Environmental Shield 5. Mountain Slope Instability: natural processes or human intervention? 6. The Himalayan-Lowland Interactive System: do land-use changes in the mountains affect the plains? 7. The Human Dimension: what are the facts? 8. Two Approaches to the Population Pressure - land productivity decline problem in the Himalaya 9. Crisis, Pseudo-crisis, or Supercrisis? 10. Research Strategy for the Himalayan Region
Haigh et al. (1989) studied this question.