人民黄河Issue(1)：27-29,33,4.DOI:10.3969/j.issn.1000-1379.2015.01.007
窟野河径流突变点分析
Analysis on Abrupt Change Points of Kuye River Runoff by Mann-Kendall and Pettitt
摘要
Abstract
Based on the meteorological and hydrological data collected from the Kuye River,the abrupt change points of the runoff were de-tected jointly using Mann-Kendall trend test and Pettitt change point test. Meanwhile,Mann-Kendall rank correlation method was em-ployed to perform trend tests on the precipitation and evaporation. The results show that the runoff of the river altered abruptly in 1979 and 1996 respectively. That is because of the soil and water conservation measures practiced in early 1980s’and a large scale of coal mining in later 1990s’,indicated by the preliminary analyses. Annual precipitation and evaporation exhibit a trend of reduction from 1960s’. Com-pared with annual evaporation,the decrease speed of the former is slower,and the change tendency of both is not evident.关键词
突变点/Mann-Kendall/Pettitt/径流/窟野河Key words
abrupt change point/Mann-Kendall/Pettitt/runoff/Kuye River分类
天文与地球科学引用本文复制引用
李舒,吕志方..窟野河径流突变点分析[J].人民黄河,2015,(1):27-29,33,4.基金项目
黄河水利科学研究院基本科研业务费专项（HKY－JBYW－2013－19）；2014年度中央高校基本科研业务费专项（2014B34914）。 （）
