1991-2020年洮河红旗站径流量变化特征分析  

Analysis of runoff variation characteristics of Hongqi station in the Taohe River from 1991 to 2020

作　　者：杨国梁 汤珊珊 刘红兵 刘展 YANG Guo-liang;TANG Shan-shan;LIU Hong-bing;LIU Zhan(Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology,Guilin University of Technology,Guilin,Guangxi 541004,China;Lintao Hydrologic Station Gansu Province,Lintao,Gansu 730500,China;Collaborative Innovation Center for Water Pollution Control and Water Safety Assurance in Karst Areas,Guilin University of Technology,Guilin,Guangxi 541004,China)

机构地区：[1]桂林理工大学广西环境污染控制理论与技术重点实验室,广西桂林541004 [2]甘肃省临洮水文站,甘肃临洮730500 [3]桂林理工大学岩溶地区水污染控制与用水安全保障协同创新中心,广西桂林541004

出　　处：《地下水》2024年第6期231-234,共4页Ground water

基　　金：广西自然科学基金青年基金项目(2020GXNSFBA159004);广西重点研发计划(桂科AB21075007)。

摘　　要：由于人类活动和气候环境的影响,洮河流域径流量变化趋势增加显著,使水资源保护和洪水防控决策难度加大。利用洮河流域红旗水文站1991-2020年径流量实测资料,对红旗站径流量序列进行距平处理、M-K检验和小波分析,结果表明:洮河流域径流量呈一定的周期变化规律,丰枯变化、季节性变化明显,各时段径流量发生多次突变;各时段径流量时间尺度变化特征明显,存在着两个主周期的时间尺度特征,分别为22 a和10 a;洮河径流量丰枯变换的时间尺度变小,周期次数增多,为洮河水资源保护和洪水防控决策中应加强对径流量时间尺度特征的关注提供了理论依据。Due to the influence of human activities and climate environment,the variation trend of runoff in the Taohe River Basin has increased significantly,which makes it more difficult to make decisions on water resources protection and flood prevention and control.Based on the measured runoff data of Hongqi Hydrology Station in Taohe River Basin from 1991 to 2020,anomaly processing,M-K test and wavelet analysis are carried out to analyze the runoff sequence of Hongqi River Station.The results show that the runoff in Taohe River basin has a certain periodic change law,with obvious variations in abundance and fluctuation and seasonal changes.There are two main period time scales,22a and 10a respectively.The time scale of runoff change in Tao River becomes smaller and the number of cycles increases,which provides a theoretical basis for paying more attention to the characteristics of runoff time scale in water resource protection and flood prevention and control decision-making.

关 键 词：径流量序列 时间尺度 Mann-Kendall趋势检验法 小波分析 红旗水文站 

分 类 号：P336[天文地球—水文科学] P333.1[水利工程—水文学及水资源]