对长江上游水资源工程建设的研究与建议(II)

Strategies of Water Project Development in the Upstream of the Yangtze Valley (II)

继前一部分对20世纪90年代以来长江上游河川径流与输沙量变化及其对长江水资源形势和水利工程的影响进行了初步研究和讨论,对未来长江上游重要的大型水资源工程的宏观影响和作用进行了初步研究。本文结合长江流域和跨流域调水增加用水的需要和气候变化可能对长江水资源带来的不利影响,本着开源节流、有效管理与合理布局的思路,对长江上游水资源工程建设、管理及相关问题提出了一些初步的看法与建议:①加快推进上游干支流控制性水资源工程建设;②对上游大型水资源工程统一管理和整体优化调度;③研究比当前南水北调西线工程更合理的线路布局;④全面治理洞庭湖,控制荆江河道出现的大幅度冲刷。

Based on a basic analysis on the trend of runoff and sediment during the last decades, and its impacts on the conditions of water resources and the operations of some important large hydro-projects on the Yangtze valley, the strategic roles and impacts of the hydro-projects under planning are studied, with stresses on the unfavourable impacts of increased water use, diversion of water in-and-out of the basin and, most importantly, the impacts of clime change. Some suggestions for broadening sources and reducing expenses and for better reconstruction and management of the large water projects in the upreaches of the Yangtze valle, are proposed.