摘要
在全球气候变化引起流域降水量时空分布改变的大背景下,研究汾河流域气象干旱现状具有十分重要的意义,因此,在文中研究结合汾河流域1957-2012年降水量资料,选用Pa指数分析汾河流域干旱情况,并采用Mann-Kendall非参数统计检验方法分析了汾河流域的Pa指数变化趋势,对汾河流域的气象干旱现状进行了评价,结果表明在汾河流域境内,交城区域的气象干旱加重程度最为明显,交城与洪洞区域的气象干旱加重最为迅速,未来需要对汾河流域境内交城及洪洞区域进行气象干旱重点监测.
Under the background of the change of precipitation spatial and temporal distribution caused by global climate change,it is important to study the current situation of meteorological drought in Fenhe River Basin.Based on the precipitation data of Fenhe River Basin from 1957 to 2012,index was selected to analyze the drought situation in Fenhe River Basin,and Mann-Kendall non-parametric statistical test was used to analyze the trend of the change of Pa index in Fenhe River Basin.The present situation of meteorological drought in Fenhe River Basin was evaluated.The results show that the aggravation degree of meteorological drought in Jiaocheng area is the most obvious,and the aggravation of meteorological drought in Jiaocheng and Honong area is the fastest.It is necessary to focus on monitoring meteorological drought in Jiaocheng and Hongtong areas in Fenhe River Basin in future studies.
出处
《山西水利科技》
2019年第2期69-71,77,共4页
Shanxi Hydrotechnics
