加强水土保持是保障国家生态安全的战略措施

水土流失是导致生态环境恶化的主要因素 ,也是生态环境恶化的主要特征。土地沙化、荒漠化、石漠化是土壤侵蚀毁坏土壤和土地资源的恶果。土壤本身即是巨大的蓄水库 ,土壤大量流失 ,土壤含水量和土壤总贮水量均随之减少 ,造成农业干旱或洪涝灾害。水土保持是生态体系建设的主体工程 ,在西部开发中 ,应严格执行水土保持法和有关生态环境建设的法律法规 ,确保开发中的生态安全

Strengthening Soil and Water Conservation is a Strategic Measure to Guarantee Na tional Ecological Safety

The loss of soil and water is a main factor to lead to ecological environment worsened and a main feature of ecological environment worsening also. The sandy, desert and stone of land is an evil consequence of soil erosion to destroy soil and land resource. The soil itself is a huge reservoir, it is lost largely, its water content and total storage is reduced afterwards, that causes agricultural drought or flood disaster. The soil and water conservation is a main project of ecological system construction. During the development of western areas, we should implement Law of Soil and Water Conservation and laws regulations related to ecological environment construction strictly to ensure ecological safety of development.