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作 者:李勇刚 赵龙 李建新 刘经强[2] 侯蕾[2] 周昊天 王怡冰 孙宪坤 LI Yong-gang;ZHAO Long;LI Jian-xin;LIU Jing-qiang;HOU Lei;ZHOU Hao-tian;WANG Yi-bing;SUN Xian-kun(Jinan Hydrology Center,Jinan 250000,China;College of Water Conservancy and Civil Engineering/Shan Dong Agriculture University,Tai’an 271018,China;Dangji Town Water Management Station of Chengwu County Shandong Province,Chengwu 274009,China)
机构地区:[1]济南市水文中心,山东济南250000 [2]山东农业大学水利土木工程学院,山东泰安271018 [3]山东省成武县党集镇水管站,山东成武274009
出 处:《山东农业大学学报(自然科学版)》2023年第1期104-111,共8页Journal of Shandong Agricultural University:Natural Science Edition
基 金:流域水循环模拟与调控国家重点实验室开放研究基金(IWHR-SKL-202219);山东省研究生教育质量提升计划(SDYAL19128);教育部产学合作协同育人项目(201902211016,202101284013);水利部专项支撑计划水资源费项目(WE0149B052020)。
摘 要:本文利用大汶河流域内26个雨量站点1956-2016年逐年降水量,戴村坝水文站天然径流量、实测径流量数据,采用Mann-Kendall检验法、累积距平法、滑动T检验、小波分析等统计分析方法,研究大汶河中上游流域降水、径流的变化特征。结果表明,该流域降雨空间分布不均衡,由东北向西南逐渐减少;流域内降水量、天然径流量、实测径流量均呈下降趋势,而下降趋势不显著,而实测径流量的减少量远大于天然径流量的减少量;流域降水量、天然径流量的突变点为1964年和2002年,而实测径流突变点为1965、2002年,而整体变化趋势基本一致,而实测径流量的波动性较大;流域降水量和天然径流量的周期性变化一致,其中11a为主周期,而实测径流量的第一主周期为11a,第二主周期为24a,周期变化均不具有全域性,与流域降水量和天然径流量的周期性变化差异较大,说明人类活动对径流量的影响较大。The research on the evolution characteristics of hydrological elements is the basis of water science research.Based on the annual precipitation of 26 rainfall stations in the Dawen River Basin,the natural runoff and measured runoff data of Daicun Dam Hydrological Station from 1956 to 2016,the Mann-Kendall test,cumulative anomaly,sliding T test,Wavelet analysis and other methods are used to study the variation characteristics of precipitation and runoff in the middle and upper reaches of the Dawen River.The results show that the spatial distribution of rainfall in the basin is uneven,and it gradually decreases from northeast to southwest.The precipitation,natural runoff,and measured runoff in the basin all showed a downward trend,but the downward trend was not significant,and the reduction of measured runoff was much greater than that of natural runoff.The sudden change points of precipitation and natural runoff in the basin are in 1964 and 2002,while the sudden change points of measured runoff are in 1965 and 2002,and the overall change trend is basically the same,but the fluctuation of measured runoff is relatively large.The periodic changes of precipitation and natural runoff in the basin are consistent,of which 11a is the main period.The first main period of the measured runoff is 11a,and the second main period is 24a.The periodic changes of measured runoff are not global,and are quite different from the periodic changes of precipitation and natural runoff in the basin,indicating that human activities have a greater impact on runoff.
分 类 号:TV213[水利工程—水文学及水资源]
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