基于小波变换的近70年燕山水库径流演变特征分析  

Analysis of Runoff Evolution Characteristics of Yanshan Reservoir in Recent 70 Years Based on Wavelet Transform

作　　者：王雪彦 范思聪 王富强[1,3] 石家豪 WANG Xueyan;FAN Sicong;WANG Fuqiang;SHI Jiahao(North China University of Water Resources and Electric Power,Zhengzhou 450046,China;Henan Yanshan Reservoir Construction and Management Bureau,Pingdingshan 467224,China;Henan Key Laboratory of Water Resources Conservation and Intensive Utilization in the Yellow River Basin,Zhengzhou 450046,China)

机构地区：[1]华北水利水电大学,河南郑州450046 [2]河南省燕山水库管理局,河南平顶山467224 [3]河南省黄河流域水资源节约集约利用重点实验室,河南郑州450046

出　　处：《华北水利水电大学学报（自然科学版）》2023年第2期8-15,共8页Journal of North China University of Water Resources and Electric Power：Natural Science Edition

基　　金：国家自然科学基金项目(51879106);中原科技创新领军人才计划项目(214200510001);河南省高校科技创新团队支持计划项目(20IRTSTHN010);郑州市软科学研究计划重点(重大)项目(2020RKXF0090)。

摘　　要：气候变化和人类活动的双重影响使得燕山水库入库径流发生了较为明显的变化。为准确揭示燕山水库入库径流演变特征,采用1955—2018年的入库径流资料,综合运用基尼系数和Mann-Kendall(M-K)非参数检验方法分析了径流年内、年际变化特征,并应用Morlet小波变换的多辨分析功能分析了径流序列多尺度周期变化特征。结果表明:①燕山水库入库径流量年内分配极不均匀,其过程线呈单峰型,月径流峰值在20世纪80年代有峰值前移特点;②燕山水库年径流呈下降趋势,年径流突变点大致发生在1963年和1993年;③全年径流变化主周期为15年,春、夏、秋、冬季径流变化主周期分别为14年、12年、11年、3年,同时存在显著的“丰—枯”循环交替变化特征。研究结果可为燕山水库防洪调度和水资源合理利用提供参考。The dual impacts of climate change and human activities have caused significant changes in the inflow runoff of the Yanshan Reservoir.In order to accurately reveal the evolution characteristics of the inflow runoff of the Yanshan Reservoir,the inflow runoff data from 1955 to 2018 were used to comprehensively analyze the characteristics of the intra-annual and interannual variation of runoff using the Gini coefficient and Mann-Kendall(M-K)nonparametric test method,and the multi-scale periodic variation characteristics of the runoff series were analyzed using the multi-resolution analysis function of Morlet wavelet transform.The results are as follows.Firstly,the annual distribution of inflow runoff in Yanshan Reservoir is extremely uneven,and its hydrograph presents a single peak type.The monthly runoff peak has the characteristic of peak forward movement in the 1980s.Secondly,the annual runoff of Yanshan Reservoir showed a downward trend,and the abrupt change points of annual runoff occurred in 1963 and 1993.Thirdly,the main cycle of annual runoff variation is 15a,and the main cycles of spring,summer,autumn,and winter runoff variation are 14 years,12 years,11 years,and 3 years,respectively.At the same time,there is a significant″abundant and dry″cycle alternating characteristics.The research results can provide reference for flood control operation and reasonable utilization of water resources of Yanshan Reservoir.

关 键 词：Morlet小波分析法 基尼系数 径流演变 燕山水库 

分 类 号：TV121[水利工程—水文学及水资源]