【作者】 段淑怀； 靳怀成； 李永贵； 周玉喜； 李五勤；

【Author】 Duan Shuhuai Jin Huaicheng Li Yonggui Zhou Yuxi Li Wuqing (Beijing Management Station of Soil and Water Conservation Beijing 100036)

【机构】 北京市水土保持工作总站；

【摘要】 以北京市密云水库上游为示范监测区,利用遥感及地理信息系统,通过坡度、土地利用和植被覆盖度专题图形制作、交叉分析和土壤侵蚀强度判别,进行流域自然状况及水土流失面积调查;根据坡地土壤侵蚀区分布及坡地水土保持治理情况布设坡地径流小区,观测各类型区水土流失量及污染物流失量;分析计算全流域的水土流失量、污染物流失量及治理措施的水土保持效益.更多还原

【Abstract】 The upper reaches of Miyun reservoir in Beijing are taken as an erosion monitoring pilot area.With the methods of remote sensing and GTS, the information of land utilization, vegetation and slope are surveyed, mapped and analyzed, which help us to learn natural information and erosion area on whole watershed.The erosion monitoring facilities with runoff plots, meteorological observation station, rain gauges and simple soil lab are set up in every typological area based on the surveying result and research.The data of rainfall, soil moisture, runoff, sediment and some pollutants from the runoff plots are collected and tested following every rainfall.From which the amounts of sediments and pollutants from the whole watershed are calculated and the benefits of erosion control projects for erosion control are analyzed.更多还原