世界各国水利规划总的进展,大体可分为两个阶段。第一阶段为60年代以前,研究内容侧重于规划范围内水土资源的综合平衡、工程的综合利用和计算技术的改进等方面。第二阶段为60年代末以来,研究内容侧重于规划目标和评价准则方面。60年代末以来,针对人口不断增长,耕地不断减少,人们开发利用水资源的规模日益扩大,地区之间、部门之间的矛盾日益尖锐等新 The overall progress of water conservancy planning in various countries in the world can be roughly divided into two stages. The first phase was before the 1960s. The content of the study focused on the comprehensive balance of water and land resources within the scope of planning, the comprehensive utilization of the project and the improvement of computing technology. The second stage since the late 1960s, the research focused on planning objectives and evaluation criteria. Since the late 1960s, in response to increasing population, declining arable land, increasing scale of exploitation and utilization of water resources and increasingly sharp conflicts between regions and departments,