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机构地区:[1]西安理工大学西北水资源与环境生态教育部重点实验室,陕西西安710048 [2]新疆和田河管理局,新疆和田848000
出 处:《水资源与水工程学报》2013年第5期45-49,共5页Journal of Water Resources and Water Engineering
基 金:国家自然科学基金项目(51109176)
摘 要:利用和田河两支流1957—2010年的逐月实测流量资料,采用滑动平均法、Mann—Kendall秩次相关检验法及小波分析法,分析了和田河出山口枯水流量的变化特征。结果表明:和田河两支流出山口处实测枯水流量在20世纪90年代末之前变化趋势不明显,90年代末之后呈显著增大趋势;但两支流枯水流量均未发生突变现象;两支流枯水流量的周期性均不显著,其中最枯月流量周期性的优势尺度为10—12a。分析枯水流量的变化特点,主要与流域气温升高及出山口水库调节有关。The paper analyzed the variation characteristics of low water flow at mountain area of Hotan river by use of the method of moving average, Mann -Kendall test and the wavelet analysis, based on monthly flow data of two tributary of Hotan river during the period of 1957 to 2010. The results indicated that the change trend of low flow was not significant before the late 1990s, and low flow showed an obvious increase after the late 1990s. However, Low flow of the two tributary of Hotan river showed no abrupt change. In addition, periodicity of low flow is not significant, and the 10 to 12 year period of flow of the driest month is obvious. The results were mainly correlated with rising temperature and reservoir regulation.
关 键 词:出山口 枯水流量 Mann—Kendall检验 小波分析 和田河
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