海河流域人口密集,城市众多,是我国政治、经济、文化的中心地区,位置十分重要。从当前和今后的发展来看,海河流域水资源短缺、水环境恶化和洪涝灾害问题,越来越成为经济和社会发展的重要制约因素。解决海河流域水的问题,特别是北京、天津等大城市水的问题,关系全国的大局,具有? The Haihe River Basin is densely populated and has many cities. It is a center of our country’s politics, economy and culture. Its location is very important. Judging from the current and future development, the shortage of water resources, deterioration of the water environment and flood disasters in the Haihe River Basin are increasingly becoming the major constraints on economic and social development. The issue of water in the Haihe River Basin, especially in the big cities such as Beijing and Tianjin, is related to the overall situation of the whole country and is it?