以金沙江干热河谷退耕地为研究对象 ,在金沙江一级支流———小江流域进行了植被恢复模式的探讨 ;初步筛选了 10余种适应于干热生境和退化耕地植被恢复的乔、灌、藤、草植物物种 ;对其开展了乔草、灌草、藤草、草草、乔灌草等复层植物群落模式研究。结果表明 :该植被恢复模式的建立 ,对水土保持效益明显 ,试验区的泥沙流失量平均减少 5 7% ,其中以草草及藤草模式的泥沙减少量最大 ,分别达 73%和 5 1% ;同时 ,由于所营建植被为生态经济型植物群落 ,既改善了环境 ,又给当地增加了经济收入 ,促进了小流域生态和社会经济的持续发展 Taking the abandoned farmland in the dry-hot valley of the Jinsha River as the research object, the vegetation restoration model was studied in the Xiaojiang River, a tributary of the Jinsha River. The preliminary screening of more than 10 species of Qiao and Guan , Rattan and grass plant species, and carried out researches on the patterns of multi-layered plant communities such as arborvitae, shrubs, canegrass, shrubs, shrubs and shrubs. The results showed that the establishment of the vegetation restoration model had obvious benefits for soil and water conservation. The average amount of sediment loss in the experimental area was reduced by 57%, of which the grassland and cane grass model had the largest reduction of sediment amount of 73% and 51 %; The same time, as the construction of vegetation for the eco-economic plant communities, both to improve the environment, but also to increase the local economic income, and promote the sustainable development of small watershed ecology and social economy