Problems and Landscape Approach for Ecological Rehabilitation in the Dry Valleys of Southwest China

摘要

The degradation and rehabilitation of dry valley are increasingly a focus of scientific and applied interest. This paper reviews the general conditions of eco-environmental degradation and puts forward a landscape approach for rehabilitation. Primarily, soil and vegetation degradation is the main cause of the degradation. Systematic analysis and insights into the soil and vegetation degradation phenomena and essences are needed for recovery. Bottom-up approach rehabilitation of dry valleys with farmerpsilas participation is needed and the relationship of ecological, social, economical factors should be considered and different measures should be taken. Finally, landscape approach for rehabilitation in relation to the policy ldquoreturn farmland into forestrdquo vegetation recovery, and afforestation are discussed.