前言 瓯江流域水电梯级开发规划,经过近卅年的研究、实践,再研究、再实践。从得失利害中体会到河流规划必须在掌握河流基本特性和社会经济发展概况的基础上,依照规划任务要求,遵循国家的方针政策,编拟各种开发方式的梯级开发布置,以便选择可行的,为各有关部门所接受的规划方案。规划任务的涉及范围,综合利用要求,对选定方案有决定性影响。规划中的库区迁移安置、生态平衡、环境保护,对梯级开发方式关系密切。规划实施时,水资源的再分配,各用水部门的投资分摊与否,直接影响着待建水电站的经济效益和各工程设施的建设规模。实践证明,河流规划工作是随着时间滚动的,社会发展需要,人们对自然规律的再认识,都要求修订、补充原有规划,以便取得更切合实际的工程效益。 Foreword Oujiang River Basin hydropower cascade development planning, after nearly a year of research, practice, re-study, and then practice. From gains and losses realized in the river planning must grasp the basic characteristics of the river and the general situation of social and economic development, based on planning tasks, follow the national guidelines and policies, the preparation of a variety of development methods of cascade development layout in order to choose feasible, For the relevant departments accepted the planning program. The scope of the planning task, the comprehensive utilization requirements, have a decisive impact on the selected program. Planning in the reservoir relocation, ecological balance, environmental protection, the development of the ladder is closely related. In the planning and implementation, the redistribution of water resources and the sharing of investment in each water sector will directly affect the economic benefits of the hydropower station to be built and the construction scale of each engineering facility. Practice has proved that the river planning work is rolling over time, the needs of social development, people’s understanding of the laws of nature are required to amend and supplement the original plan in order to achieve more realistic engineering benefits.