宁南生态经济型流域治理模式的探索及效益

Practice and Benefit of Pattern of Eco economic Drainage Area Control in Loess Hilly Region of Southern Ningxia

本文通过宁南彭阳县白岔生态农业经济建设试区流域治理的实践，提出了生态经济型流域综合治理的模式，即：优化土地利用是控制水土流失、保持农业综合持续发展的核心，农林牧综合发展是水土保持工作的方向，工程措施与生物措施相结合、治沟与治坡相结合、生态效益与经济效益相结合，使水保工作持续发展。经实施，３ ３４０ ｈｍ ２ 试区治理水土流失面积达７０％ ，林草覆盖面积达到５４．３％ ，森林覆盖率１９．３％ ，人均有粮５４０ ｋｇ，总产值４０７ 万元，人均收入９０８ 元，实现水保经济效益１１５．８ 万元。

Through the practice of bring valley under control at Brachia Village, PengYang county, southern Ningxia in semi arid area of loess hilly region, put forward a model of bring valley under control in eco economy, that is: comprehension development of agriculture, forestry and animal husbandry is the orientation for doing well the work of water and soil conservation in the loess plateau. Making full use of the land is the core to control soil erosion effectively and to keep comprehensive development of agriculture continually. By combining biological measure with engineering ones, gill control with hillside control, ecological effects with economic ones, can make the work of water and soil conservation be developed sustainelly. By carry out of this plan, the area of controlling soil and water loss reached 70%, the area covered with forest and grass arrived to 54.2%, forestry coverage became 19.3% and 540 kg grain and 908 yuan net income per capita were obtained;The gross income of agriculture arrived to 4 070 thousand yuan, the economical benefit of water and soil controlling was obtained in 1 158 thousand yuan.