摘要
黄河源区作为黄河的水塔,其水量的丰枯变化对黄河流域水资源开发利用至关重要。采用M-K秩次相关检验和有序聚类法分析了1961—2013年来黄河源区气温、降水和径流的演变特征,分阶段研究了降水-径流响应关系。结果表明:1961—2013年间,黄河源区气温显著升高,降水增加趋势微弱,实测径流整体呈微弱下降趋势;实测径流序列在1989年发生突变,由于兴建了生态保护工程,将实测径流系列划分为1961—1989年、1990—2000年和2000—2013年3个阶段,不同阶段的降水-径流相关性较好,阶段性差异明显,2000年以后的点群位置明显靠下,表明其他非降水因素对河川径流量的变化具有重要影响。
As the water tower of the Yellow River,the source area of the Yellow River is very important for the development and utilization of water resources in the Yellow River Basin.In this paper,the evolution of temperature,precipitation and runoff in the source area of the Yellow River during 1961 to 2013 has been analyzed by M-K rank correlation test and ordered clustering method,and the relation of precipitation and runoff is studied in stages.The results show that during 1961 to 2013,the temperature in the source region of the Yellow River has increased significantly,the increasing trend of precipitation is not obvious,and the measured runoff as a whole has shown a slight downward trend.The measured runoff series changed abruptly in 1989.Due to the construction of an ecological protection project,the measured runoff series were divided into three stages:1961-1989,1990-2000 and 2000-2013.The correlation between precipitation and runoff at different stages is sound,and the difference between stages is obvious.The position of the point cluster after the year of 2000 is obviously lower,indicating that other non-precipitation factors have an important influence on the change of river runoff.
作者
张成凤
鲍振鑫
杨晓甜
刘酌希
管晓祥
王国庆
刘翠善
ZHANG Chengfeng;BAO Zhenxin;YANG Xiaotian;LIU Zhuoxi;GUAN Xiaoxiang;WANG Guoqing;LIU Cuishan(College of Hydrology and Water Resources,Hohai University,Nanjing 210098,China;State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering,Nanjing Hydraulic Research Institute,Nanjing 210029,China;Research Center for Climate Change of Ministry of Water Resources,Nanjing 210029,China)
出处
《华北水利水电大学学报(自然科学版)》
2019年第6期15-19,共5页
Journal of North China University of Water Resources and Electric Power:Natural Science Edition
基金
“十三五”国家重点研发计划项目(2017YFA0605002,2016YFA0601501)
国家自然科学基金项目(41961124007,41830863,51879162,51779146,41601025)
水文水资源与水利工程科学国家重点实验室开放基金项目(2017490211)
关键词
黄河源区
水文气象要素
演变趋势
阶段性
响应关系
the source area of the Yellow River
hydro-meteorological variables
evolution trend
stage
response relationship