京津唐地区水资源供需矛盾与水环境灾害

京津唐地区水资源供需矛盾突出，目前每年缺水50—80亿m^3，预计到2030年将缺水80—100亿m^3，如发生大旱，可能导致严重水荒。近几十年过量开发利用水资源，导致地表水不断萎缩，地下水位持续下降，不仅引起大面积地面沉降和地面塌陷、海水入侵，而且加剧了气候干旱化和土地沙漠化。缓解水资源危机的根本出路是大力节水的同时，开辟新的水源，切实保护水资源，防治水环境灾害。

Water Resource Supply and Demand Conflicts and Water Environment Disaster in Beijing, Tianjin and Tangshan Areas

Water resource supply and demand conflicts in Beijing, Tianjin and Tangshan areas are obvious. Currently, the water shortage is 5 -8 billion m^3/a, which is predicted to be 8 - 10 billion m^3/a in 2030, which may cause serious water famine if great drought happens. In recent years, over development and utilization of water resource cause continuous shrinkage of ground water and continuous drop of underground water, which, not only causes huge area of ground sedimentation and ground collapse, seawater invasion, but also intensifies climate drought and land desertification. The fundamental means to alleviate water resource crisis is to save water vigorously, and simultaneously, pioneer new water resources, so as to protect water resource practically and prevent water environment disaster.