甘肃省宁县三合沟、东风沟、梁家川、菜子沟、付家山、黑坡沟六条小流域,总面积39.02平方公里。1978年被列为甘肃省水土保持综合治理重点,截止1987年底,累计完成治理面积32.24平方公里,治理程度达到82.62％,其中兴修梯田、条田、坝地20494亩,人工造林25826亩,人工种草2036亩,修建各项水保工程371项。从而改善了农业生产条件,为群众脱贫致富创造了条件。 一、增强了农业发展的后劲。粮食亩产由1979年的141.5公斤增加到1987年的194.5公斤,总产由410.7万公斤增加到504.2万公斤,分别增长了37.5％和22.77％;人均产粮448.5公斤,比1977年增长21.71％。如今,80％以上的农户有了余粮,出售商品粮的农户越来越多。 二、以多种经营为主的商品经济和工副业生产 Gansu Province Ningxian Sanhe Ditch, Dongfenggou, Liangchuan, Cai Zigou, Fu Hill, Blackpool ditch six small watershed, with a total area of ​​39.02 square kilometers. In 1978, it was listed as the key point of comprehensive management of soil and water conservation in Gansu Province. By the end of 1987, the total area under management has reached 32.24 square kilometers and the degree of governance has reached 82.62%. Among them, 20494 mu of terrace, bar field and dam land, 25,826 mu of artificial afforestation, 2036 acres of grass, construction of 371 water conservancy projects. Thus improving the conditions for agricultural production and creating conditions for the masses to get out of poverty and get rich. First, enhance the stamina of agricultural development. The per-mu of grain increased from 141.5 kg in 1979 to 194.5 kg in 1987, with the total output increasing from 4,017,000 kg to 5,042,000 kg, an increase of 37.5% and 22.77% respectively; the per-capita grain yield was 448.5 kg, an increase of 21.71% over 1977; . Today, more than 80% of farmers have surplus grain, and more and more farmers sell commodity grains. Second, to a variety of business-based commodity economy and sideline production