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Spatiotemporal variations of meteorological drought and its dominant factors in different climate regions for the first two decades of the twenty-first century

文献类型：期刊论文

作者Xing, Yincong1; Li, Yanzhong1; Bai, Peng2; Zhuang, Jiacheng1; Feng, Aiqing3; Huang, Manjie1; Yan, Haiwen1
刊名THEORETICAL AND APPLIED CLIMATOLOGY
出版日期2024-02-03
页码15
ISSN号0177-798X
DOI10.1007/s00704-024-04833-w
通讯作者Li, Yanzhong(liyz_egi@163.com)
英文摘要Drought events have become increasingly frequent and intensive due to the combined influence of climate change and anthropogenic activities. However, it remains unclear how meteorological drought characteristics (duration, severity, and intensity) respond to the changing environment and what are the dominant factors determining the drought evolution in different climate regions. Here, we divide mainland China into four sub-climatic regions, namely the Humid region (HR), Transition region (TR), Arid region (AR), and Tibetan Plateau (TP), based on the aridity index and geomorphology. Then systematically investigate the spatiotemporal patterns of drought characteristics in different climate regions over China (during 2000-2019) based on the SPEI and run theory. And the contribution of precipitation (Pre) and potential evapotranspiration (PET) to drought characteristics are quantitatively analyzed using a detrended numerical experiment method. We find that (1) a pattern of "dry gets drier, wet gets wetter" was found in China. (2) Meteorological drought characteristics exhibit apparent regional heterogeneity: droughts in AR are of long duration and high severity, while droughts in HR and TR show a pattern of high frequency. (3) An increase in the annual Pre (PET) resulted in increases (decreases) in average SPEI in China of 45.18% (31.62%). Therefore, Pre is the dominant factor determining the increase of SPEI over China. For the four sub-climatic regions, Pre is the dominant factor in the increase of SPEI in TR and HR, with the contribution of 41.64% and 60.16%. PET is the dominant factor in the decrease of SPEI in AR, with the contribution of 50.11%. The contributions of Pre (45.09%) and PET (44.09%) in TP are roughly equivalent. These findings provide valuable insights for policymakers in shaping climate change adaptation and mitigation strategies. By understanding the leading meteorological factors influencing drought, policymakers can implement effective measures to minimize the influence of disasters.
WOS关键词POTENTIAL EVAPOTRANSPIRATION ; SOUTHWEST CHINA ; PRECIPITATION ; VARIABILITY ; EVOLUTION ; TRENDS ; SHOW ; EAST
资助项目the National Natural Science Foundation of China[2023YFC3206801] ; National Key R&D Programe of China[2021xjkk0806] ; Third Xinjiang Scientific Expedition Program ; Youth Open Project of China Meteorological Administration Key Laboratory for Climate Prediction Studies[CXFZ2022J068] ; China Meteorological Administration Special Foundation for Innovation and Development
WOS研究方向Meteorology & Atmospheric Sciences
语种英语
WOS记录号WOS:001153607600001
出版者SPRINGER WIEN
资助机构the National Natural Science Foundation of China ; National Key R&D Programe of China ; Third Xinjiang Scientific Expedition Program ; Youth Open Project of China Meteorological Administration Key Laboratory for Climate Prediction Studies ; China Meteorological Administration Special Foundation for Innovation and Development
源URL[http://ir.igsnrr.ac.cn/handle/311030/202621]  
专题中国科学院地理科学与资源研究所
通讯作者Li, Yanzhong
作者单位1.Nanjing Univ Informat Sci & Technol, Sch Hydrol & Water Resources, Nanjing 210044, Peoples R China
2.Chinese Acad Sci, Key Lab Water Cycle & Related Land Surface Proc, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
3.China Meteorol Adm, Natl Climate Ctr, Beijing 100081, Peoples R China
推荐引用方式
GB/T 7714		 Xing, Yincong,Li, Yanzhong,Bai, Peng,et al. Spatiotemporal variations of meteorological drought and its dominant factors in different climate regions for the first two decades of the twenty-first century[J]. THEORETICAL AND APPLIED CLIMATOLOGY,2024:15.
APA Xing, Yincong.,Li, Yanzhong.,Bai, Peng.,Zhuang, Jiacheng.,Feng, Aiqing.,...&Yan, Haiwen.(2024).Spatiotemporal variations of meteorological drought and its dominant factors in different climate regions for the first two decades of the twenty-first century.THEORETICAL AND APPLIED CLIMATOLOGY,15.
MLA Xing, Yincong,et al."Spatiotemporal variations of meteorological drought and its dominant factors in different climate regions for the first two decades of the twenty-first century".THEORETICAL AND APPLIED CLIMATOLOGY (2024):15.

入库方式： OAI收割

来源：地理科学与资源研究所

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