Problems and landscape approach for ecological rehabilitation in the dry valleys of Southwest China

作     者：Yuhong Dong Yucheng Comprehensive Experimental Station Institute of Geographic Science and Natural Resources Chinese Academy of Sciences Beijing 100101 China Shiliang Liu School of Environment State Key Laboratory of Water Environment Simulation Beijing Normal University Beijing 100875 China 

会议名称：《2009 International Conference on Environmental Science and Information Application Technology》

会议日期：2009年

学科分类：07[理学] 09[农学] 0903[农学-农业资源与环境] 0713[理学-生态学] 

基　　金：funded by the National Natural Sciences Foundation of China(No. 40871237 No.40501067 No.30700106) 

关 键 词：degradation rehabilitation dry valley landscape approach Southwest China 

摘      要：The degradation and rehabilitation of dry valley are increasingly a focus of scientific and applied *** paper reviews the general conditions of eco-environmental degradation and puts forward a landscape appoarch for ***,soil and vegetation degradation is the main cause of the *** analysis and insights into the soil and vegetation degradation phenomena and essences are needed for ***-up approach rehabilitation of dry valleys with farmer’s participation is needed and the relationship of ecological,social,economical factors should be considered and different measures should be ***,landscape approach for rehabilitation in relation to the policyreturn farmland into forest vegetation recovery,and afforestation are discussed.