论文部分内容阅读
１９８３年柳河流域被列为全国八大重点治理区之一，全区统一规划，大力开展以小流域治理为中心的水土保持，实行工程措施和生物措施相结合，改革耕作方式。制定切实有效政策，调动群众治理水土流失的积极性。规划治理面积７３２．３ｋｍ２，截止１９９１年已治理面积达到９５．７％。林草覆盖率提高到５４％，土壤肥力得到提高，田间小气候得到改善
In 1983, the Liuhe River Basin was listed as one of the eight key areas under management in the country. The district unified planning and vigorously carried out water and soil conservation centered on small watershed management. The implementation of engineering measures and biological measures combined with the reform of farming methods. Formulate effective and effective policies to mobilize the enthusiasm of the masses in governing soil and water loss. Planning and management area of 732.3km2, as of 1991 has been treated area reached 95.7%. Forest and grass coverage increased to 54%, soil fertility has been improved, the microclimate has been improved