水力发电2018，Vol.44Issue(1)：5-8,72,5.
澜沧江流域下游主要水文气象要素变化特征
Variation Characteristics of Major Hydrometeorological Elements in the Lower Reaches of Lancang River
摘要
Abstract
The variation characteristics of major hydrometeorological elements in the lower reaches of Lancang River are analyzed by using linear regression method,cumulative anomaly method and Mann-Kendall mutation test respectively.The results show that,(a) the precipitation in the lower reaches of Lancang River between 1967 and 2006 is not significantly changed at seasonal or annual scales,and the precipitation is increased in spring but shows a decreasing trend in other three seasons;(b) the temperature is significantly increased at both scales,but the temperature rise rate in winter is faster than that in summer;(c) the evaporation shows an increasing trend at both scales,especially changed significantly in autumn;and (d) the average runoff is increased significantly in winter and spring,and it is more influenced by human activities.关键词
水文要素/气象要素/累积距平/Mann-Kendall突变检验/澜沧江流域Key words
hydrological elements/meteorological elements/cumulative anomaly/Mann-Kendall mutation test/Lancang River Basin分类
天文与地球科学引用本文复制引用
黎清霞,何艳虎,李佩怡..澜沧江流域下游主要水文气象要素变化特征[J].水力发电,2018,44(1):5-8,72,5.基金项目
国家自然科学基金资助项目(51509127,91547202,51210013) （51509127,91547202,51210013）
