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结合莒南县节水灌溉水源工程规划，对该县部分小型库塘进行了兴利计算，并将计算结果绘成兴利相关曲线．经相关分析发现，当各流域片的自然条件等基本相似时，小型库塘的兴利库容、节水灌溉面积和汇水面积间存在明显的相关关系，并且相关线精度满足工程要求．应用兴利相关曲线，可以极大地减少小型库塘的兴利计算工作量，加快丘陵山区节水灌溉工程建设速度
According to the planning of water conservancy irrigation water source project in Taonan County, some small reservoirs in this county were prosperously calculated, and the calculation results were plotted as Xing-Xing correlation curve. The correlation analysis shows that there is a clear correlation between the storage capacity, the area of water saving irrigation and the catchment area when the natural conditions and the like of the watersheds are basically similar, and the accuracy of relevant lines meets the requirements of the project. The application of the relevant curve of Xingli can greatly reduce the amount of work required for the development of small reservoirs and speed up the construction of water-saving irrigation projects in hilly areas