摘要
河川径流演变特征对流域水资源管理及开发利用具有重要的意义。基于和田河源流乌鲁瓦提站和同古孜洛克站1957—2018年62 a长时间径流实测数据,采用线性趋势、Mann-Kendall趋势检验和重标极差分析法,从年代际、年际、季节及月份4个时间尺度分析了和田河源流区径流演变特征。结果表明:乌鲁瓦提站和同古孜洛克站的径流年代际变化特征一致,均经历了“平水年-偏丰水年”;乌鲁瓦提站和同古孜洛克站年径流量均呈现不显著增加趋势,径流序列的突变点均为2009年,年径流均在一定时间内持续增加;乌鲁瓦提站夏秋季径流量变化对年径流量影响最大,同古孜洛克站夏季径流量对年径流影响最大;径流量年内分配不均匀,主要集中在5—9月,占比在86.11%~90.86%,呈“冬枯夏洪”。
The evolution characteristics of river runoff are of great importance to the management and efficient use of water resources in a river basin.Based on 62 years(1957-2018)of runoff measurement data from Wuluwati station and Tongguziluoke station in the headstream area of the Hotan River,the evolution characteristics of its runoff were assessed using linear trend tests,Mann-Kendall trend tests,and rescaled range analysis.These evolution characteristics were analyzed on four time scales including seasons and months.Results showed that the interdecadal variation characteristics of runoff at Wuluwati station and Tongguziluoke station were the same:Both had experienced a“normal water year-preferential wet year”and the annual runoffs at both stations were equal(they showed a nonsignificant increasing trend).The mutation points of the runoff sequence were all in 2009 and the future annual runoff is predicted to continue to increase for a certain period.The summer and autumn runoff changes at Wuluwati station had the greatest impact on annual runoff,whereas the summer runoff at Tongguziluoke station had the greatest impact on annual runoff.Finally,the distribution of runoff during the year was uneven;it was mainly concentrated in May-September,which accounted for 86.11%-90.86% of runoff,indicating a trend for“dry winters and flooding in summer”.
作者
余其鹰
张江辉
白云岗
王硕
江柱
曹彪
卢震林
YU Qiying;ZHANG Jianghui;BAI Yungang;WANG Shuo;JIANG Zhu;CAO Biao;LU Zhenlin(School of Water Conservancy and Civil Engineering,Xinjiang Agricultural University,Urumqi 830052,Xinjiang,China;Xinjiang Institute of Water Resources and Hydropower Research,Urumqi 830049,Xinjiang,China;College of Water Conservancy and Architectural Engineering,Tarim University,Alar 843000,Xinjiang,China)
出处
《干旱区研究》
CSCD
北大核心
2021年第2期494-503,共10页
Arid Zone Research
基金
塔里木河流域管理局科研计划项目(TGJHTJJG-2018KJXM0001)。
关键词
和田河
线性趋势
径流变化
M-K检验
重标极差分析
Hotan River
linear trend
runoff change
Mann-Kendall test
rescaled range analysis
