《规划》的主要内容及目标。《规划》原则是“稳定密云，改善官厅，量质并重，联合调度，保障供给。”《规划》范围不仅包括北京市，同时包括密云水库和官厅水库上游的河北省承德市、张家口市，以及山西省的大同、朔州部分地区。《规划》实施项目主要为水污染防治、水土流失治理、节水、生态农业建设等项目，它们是保障密云、官厅水库供水水量和水质的基础工程。通过实施上述工 The main content and objectives of “planning”. The principle of “planning” is “to stabilize the Miyun and improve the government hall, with equal emphasis on quality and quantity and on a joint basis to ensure supply.” “Planning” covers not only Beijing but also Miyun Reservoir and Chengde City, Zhangjiakou City, Hebei Province, upstream of Guanting Reservoir and Datong, Shanxi Province Shuozhou parts. The implementation of the “Planning” project is mainly water pollution prevention and control, soil and water loss control, water conservation, eco-agriculture construction and other projects, which are the basic projects to ensure the water supply and water quality of Miyun and Guanting reservoirs. Through the implementation of the above work