延庆县2006年水土保持监测效益分析

延庆县位于北京市西北部,分属于永定河流域,潮白河流域和北运河流域,有妫水河、白河两大干流,是北京市的生态屏障,是首都的重要水源地.由于地形破碎,地貌类型较为复杂,相对高差大,水土流失特别严重.通过遥感及建设径流小区、沟道卡口站等监测手段布设水土流失监测网点对全县范围内的降雨、径流、泥沙以及径流中的总磷、总氮、CODMn等进行观测分析,对水土保持治理效益进行分析,为更好地治理水土流失,保护水源,为经济发展服务,实现延庆县经济社会可持续发展.

Analysis of Benefits of Soil and Water Conservation Monitoring in 2006 of Yanqing

Yanqing county is located in the northwest of Beijing,belongs to the watersheds of Yongding river,Chaobai river and Beiyun river. It has two main rivers which are Guishui and Baihe. It is the ecological screen and headwater region of Beijing. Because of the fragmental landform,complicated geomorphologic types,rather large relative height,soil and water erosion of Yanqing county is serious. Getting through some monitoring means such as remote sensing, built runoff-plots, bayonet station of channel to observe and analyze the rainfall, runoff, silt and the total phosphorus, total nitrogen, CODMn of the runoff in the whole county,and then we can analyze the benefits of the soil and water conservation measures,provide better service for man-aging the soil and water loss, protecting headwater, developing economy, implementing the sustainable development of the economy and society of Yanqing county.