水资源开发对黄河下游河道环境生态功能的影响分析

黄河与国内外其它半干旱地区河流的一个最大区别 ,就是它是世界上年输沙量最大的一条河流 ,而且沿河排污量很大。因此 ,必须把保持黄河下游的泄洪排沙、水体自净等自然功能纳入流域整体开发中 ,避免下游河道出现由于人为影响而加速萎缩以及水环境恶化问题

THE IMPACT OF CATCHMENTS WATER USE ON THE NORMAL FUNCTIONING OF THE LOWER YELLOW RIVER

The huge amount of sediment transport and waste water discharge distinguish the Yellow River from other any major river in similarly semi arid regions around the world. Successful strategies of water use and water resources development in other regions are not necessarily suitable for situations in the Yellow River basin. This paper presents an analysis of hydrological data collected on the Yellow River, which indicates that the normal functioning of the Lower Yellow River, especially the ability to discharge flood and transport sediment, are seriously harmed by the heavy use of water for irrigation and hydro-power generation on the upper Yellow River. As its runoff diminishes and no flushing discharge available, the Lower Yellow River water pollution is also worsening at an astonishing rate.