甘肃省定西地区九华沟流域以小流域为单元,以山、水、田、林、路综合治理与综合开发相结合,走出了一条生态与经济双赢的路子。论文研究了九华沟流域生态环境综合治理开发模式的组成内容、布局模式及其经济、社会和生态三大效益。该流域的实践证明,生态环境建设是基础,水土保持是干旱贫困山区脱贫致富的战略抉择;经济发展是保证,在生态环境治理的同时,进行综合开发,发展生态农业,是促进生态经济系统良性循环、实现脱贫致富的重要途径。

Hilly&gully area in the Loess Plateau has become the focus of Western Developme-nt and Poverty Alleviation of our country since its ecological environment was poor,water and soil erosion was serous,and people here could not get enough to eat and wear.Jiuhuagou Water-shed in Dingxi area of Gansu Province,facing such a dilemma of fragile eco-environment and economic poverty,took the way of integrating synthetic exploitation with synthetic amelioration of hills,water,farmland,woods and roads by taking small watershed as a cell,which proved to be a successful way to improve eco-environment and economy.The article introduces the composition content and distribution of synthetic amelioration of eco-environment of Jiuhuagou Watershed,as well as sums up economic,social and ecological benefits it brings.Experiences show that develo-pment of such regions as Jiuhuagou should base on construction of eco-environment,and economic development will provide support and impetus for it.To carry on synthetic exploitation and to develop ecological agriculture while ameliorating eco-environment are efficient ways to realize the goal of healthy recycle of ecological system and also efficient ways to cast off poverty and set out a way to prosperity.