摘要
本文根据凤庆气象站1959—2022年降水资料分析降水年内分配情况,采用线性回归、Mann-Kendall检验等方法分析迎春水库流域降水年际变化趋势、突变特征;采用高程法拟合罗闸河流域高程与多年平均降水量的关系曲线,通过线性插值计算出迎春水库本区、落拐河引水区、水箐河引水区多年平均年降水量。结果表明,迎春水库流域降水量年内分配不均;年降水量随时间变化整体呈下降趋势,变化不显著;年降水量随着流域平均高程的增加而增加。研究成果可为迎春水库水资源优化配置提供依据。
This paper analyzes the annual distribution of precipitation based on precipitation data from the Fengqing Meteorological Station from 1959 to 2022.Linear regression,Mann-Kendall test,and other methods are used to analyze the interannual variation trend and abrupt characteristics of precipitation in the Yingchun Reservoir Basin.The relationship curve between elevation and multi-year average precipitation is fitted using the elevation method in the Luozha River Basin.The multi-year average annual precipitation in the Yingchun Reservoir area,Luoguai River diversion area,and Shuijing River diversion area is calculated through linear interpolation.The results show that precipitation distribution in the Yingchun Reservoir Basin is uneven throughout the year.The annual precipitation shows a decreasing trend over time,although the change is not significant.The annual precipitation increases with the average elevation of the basin.The research findings can provide a basis for optimizing the allocation of water resources in the Yingchun Reservoir.
作者
张丰丽
王晓进
ZHANG Fengli;WANG Xiaojin(Changjiang Water Resources and Hydropower Development Group(Hubei)Co.,Ltd.,Wuhan 430014,China)
出处
《水资源开发与管理》
2024年第12期31-36,共6页
Water Resources Development and Management
