黄河流域分区天然径流量趋势性与持续性特征  

Tendency and Persistence of Natural Runoff in the Yellow River Basin

作　　者：李春晖[1] 杨志峰[1] 

机构地区：[1]北京师范大学环境学院水沙科学教育部重点实验室,北京100875

出　　处：《水文》2005年第1期13-17,共5页Journal of China Hydrology

基　　金：国家重点基础研究发展规划项目(G1999043605);中国博士后科学基金资助项目(2004036209)

摘　　要：水资源具有趋势性和持续性特征。利用Kendall秩次相关和Hurst指数分别分析了黄河流域15个分区1951～1998年天然径流量的趋势性和持续性特征,结果显示:黄河流域15个分区天然径流量的趋势性和持续性各不相同;对黄河流域而言,年径流量与汛期径流量都通过了显著性检验,且呈下降趋势,并具有一定的持续性。Water resources have characteristics of tendency and persistence. The Kendall analysis and Hurst index are applied to analyze the tendency and persistence of natural runoff in the 15 sub-regions of the Yellow River Basin during 1951-1998. The results show that the two characteristics are different in various sub-regions. For example, the annual runoff and runoff in flood-season that have passed the significance test not only have a decrease trend, but also persistence to a certain extent.

关 键 词：趋势性 持续性 天然径流量 黄河流域 

分 类 号：TV121[水利工程—水文学及水资源]