我国不同区域气象干旱成因研究进展与展望  

Progress and prospects of research on causes of meteorological drought in different regions in China

作　　者：薛亮 袁淑杰[1] 王劲松[2] XUE Liang;YUAN Shujie;WANG Jinsong(College of Atmosphere Sciences,Chengdu University of Information Technology,Chengdu 610225,China;Institute of Arid Meteorology,China Meteorological Administration,Key Laboratory of Arid Climate Change and Reducing Disaster of Gansu Province,Key Laboratory of Arid Climate Change and Disaster Reduction of CMA,Lanzhou 730020,China)

机构地区：[1]成都信息工程大学大气科学学院,四川成都610225 [2]中国气象局兰州干旱气象研究所,甘肃省干旱气候变化与减灾重点实验室,中国气象局干旱气候变化与减灾重点实验室,甘肃兰州730020

出　　处：《干旱气象》2023年第1期1-13,共13页Journal of Arid Meteorology

基　　金：四川省科技计划项目(2021YJ0280);甘肃省自然科学基金重点项目(21JR7RA694);干旱气象基金(IAM202004)共同资助。

摘　　要：在全球增暖背景下,我国干旱灾害的严重程度、持续时间和影响范围均呈增加趋势。气象干旱是干旱灾害发生的前提,厘清气象干旱形成原因,对提高干旱预警能力、制定干旱灾害应对策略和防御措施有重要科学意义。本文较为全面地梳理了我国气象干旱成因的研究进展。首先,考虑干旱的成因具有区域差异性,分别总结了我国西北、华北、东北、华东、华南及西南6个区域的干旱成因;考虑干旱的时间持续性,基于季节干旱、两季连旱和三季连旱,分别从冷暖空气、位势高度场、海温场异常等方面归纳各区域不同持续时间气象干旱形成的主要影响因子。其次,提出了目前我国气象干旱成因研究面临的科学问题和未来研究方向。鉴于已有的干旱成因研究多以对单一影响因子研究为主,即便考虑了干旱形成的多个影响因子,但仍然相对缺乏对多因子间协同作用的定量分析,因此未来需要关注不同影响因子对气象干旱形成的贡献率及彼此间协同作用的定量关系。Under the background of global warming, the severity, duration, and influencing scope of drought disasters in China are all increasing in recent years. Meteorological drought is a prerequisite for the occurrence of drought disasters. On the basis of clarifying the causes of meteorological droughts, it is of great scientific significance to improve the drought early warning ability, to propose drought disaster coping strategies and defense measures. This study comprehensively sorts out the research progress of the causes of meteorological drought in China. Firstly, in view of the regional differences in the drought formation causes in the various regions, the causes of drought are summarized respectively in Northwest China, North China, Northeast China, East China, South China, and Southwest China. Considering the time persistence of drought, based on the seasonal drought, two-season drought, and three-season drought, the main influencing factors on the formation of meteorological droughts with different durations in various regions are summarized respectively, from the aspects of cooling and warming flow transport, geopotential height field, and sea surface temperature field anomaly. Secondly, the scientific problems and future research directions on causes of meteorological drought are put forward. In previous studies,the analysis of drought causes mostly considered a single influencing factor, or considering the multiple influencing factors, but there is a lack of in-depth elaboration and research on the synergy between multiple factors. The contribution rate to drought formation and the quantitative relationship between these multiple influencing factors are urgent to study.

关 键 词：气象干旱 区域性 持续性 成因 

分 类 号：P461[天文地球—大气科学及气象学]