谱系群分析法在洮河大夏河流域水资源区划分中的分析应用  

Analytical application of spectral group analysis in the delineation of water resource zones in the Tao river Daxia river basin

作　　者：张昌顺 ZHANG Chang-shun(Gansu hydro-logical station,Lanzhou,Gansu 730000)

机构地区：[1]甘肃省水文站,甘肃兰州730000

出　　处：《地下水》2024年第1期190-192,共3页Ground water

基　　金：甘肃省2022年水利科学试验研究及技术推广计划项目(甘水建管发[2022]59号)(22GSLK051)。

摘　　要：洮河大夏河流域位于黄河流域第一阶梯东部边缘一隅,属第一阶梯向第二阶梯的过渡地带。水资源时空分布在一定范围内的相似性就是变化与联系相互制约的结果。在洮河大夏河区域内选择15个降水量代表站,各站组合计算相关系数,然后采用逐次形成法依次进行连接合群,相关系数在一定置信水平下的临界值作为水资源区划群的划分参照。经区域站点相关性分析计算和流域对照,相关站点降水量呈现较好的相关性,计算的分区能较好的反映区域内各分区的降水量特点,与当地的降水特性,地形地貌及成雨条件吻合度较高,对水资源分区与计算提供了可行可操作的分析方法。The Tao river Daxia river basin is located in the corner of the eastern edge of the first ladder of the Yellow river basin,belonging to the transition zone from the first ladder to the second ladder.The similarity of the spatial and temporal distribution of water resources at a given scale is the result of the interplay of change and linkages.In the Tao river Daxia river region,15 precipitation representative stations are selected,and the correlation coefficients are calculated for each station combination,and then the successive formation method is used to connect the clusters sequentially,and the critical value of the correlation coefficients at a certain level of confidence is used as a reference for the division of the water resources zoning clusters.After calculating the correlation analysis of the regional stations and the control of the river basin,the precipitation at the relevant stations shows good correlation,and the calculated zones can better reflect the characteristics of the precipitation in each subzone in the region,which is in good agreement with the local precipitation characteristics,topography and rainfall conditions,and provides a feasible and operable method of analyzing and calculating the water resources zoning.

关 键 词：谱系群分析法 水资源区划 相关系数矩阵 洮河大夏河 

分 类 号：TV213.2[水利工程—水文学及水资源]