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Unravelling spatiotemporal propagation processes among meteorological, soil, and evaporative flash droughts from a three-dimensional perspective

文献类型：期刊论文

作者Hu, Chen5; She, Dunxian4,5; Wang, Gangsheng4,5; Zhang, Liping4,5; Jing, Zhaoxia3; Song, Zhihong2; Xia, Jun1,4,5
刊名AGRICULTURAL WATER MANAGEMENT
出版日期2025-03-01
卷号308页码:16
关键词Flash drought types Flash drought transition Spatiotemporal dynamics Drought events matching Yangtze River Basin
ISSN号0378-3774
DOI10.1016/j.agwat.2025.109294
通讯作者Hu, Chen(huchen1996@whu.edu.cn) ; Xia, Jun(xiajun666@whu.edu.cn)
英文摘要Flash droughts, defined by their rapid development and intensification, have received growing attention due to their severe impacts. Understanding the mechanisms and evolutions of flash drought events is crucial for early warning and mitigation. However, research on the propagation processes among different flash drought types remains limited. Here we developed a spatiotemporal matching framework to identify propagation processes among meteorological, soil, and evaporative flash droughts from a three-dimensional perspective, applying it to the middle and lower reaches of Yangtze River Basin (MLRYRB) from 2000 to 2022. Additionally, we utilized the random forest model to identify critical factors influencing flash drought propagation. Results showed that among three flash drought types, evaporative flash droughts exhibited the lowest number, duration, and severity, while soil flash droughts displayed the highest. The spatiotemporal matching framework identified 21 meteorological-soil, 12 meteorological-evaporative, 10 soil-evaporative, 19 evaporative-soil, 8 meteorologicalsoil-evaporative, and 4 meteorological-evaporative-soil flash drought propagation events in the MLRYRB, whereas minor flash droughts with short durations and limited areas failed to pair. Propagation towards evaporative flash droughts was associated with reduced duration, areas, and severity, while intensifying characteristics of flash droughts were observed in the propagation towards soil flash droughts. Vapor pressure deficit (VPD) and temperature were the main factors influencing propagations toward soil and evaporative flash droughts, respectively. Our findings can provide valuable insights into flash drought propagation processes and mechanisms, aiding in the establishment of flash drought early warning system and supporting policymakers in formulating adaptive agricultural water supply polices.
WOS关键词PRECIPITATION DEFICIT ; ONSET
资助项目National Natural Science Foundation of China[52309032] ; Fundamental Research Funds for the Central Universities[2042023kf0162] ; Wuhan Natural Science Foundation Special Zone Project[2024040701010035]
WOS研究方向Agriculture ; Water Resources
语种英语
WOS记录号WOS:001397874300001
出版者ELSEVIER
资助机构National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Wuhan Natural Science Foundation Special Zone Project
源URL[http://ir.igsnrr.ac.cn/handle/311030/212671]  
专题中国科学院地理科学与资源研究所
通讯作者Hu, Chen; Xia, Jun
作者单位1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China
2.Changjiang River Sci Res Inst, Wuhan 430010, Peoples R China
3.Changjiang Water Resources Protect Inst, Wuhan 430051, Peoples R China
4.Wuhan Univ, Inst Water Carbon Cycles & Carbon Neutral, Wuhan 430072, Peoples R China
5.Wuhan Univ, State Key Lab Water Resources Engn & Management, Wuhan 430072, Peoples R China
推荐引用方式
GB/T 7714		 Hu, Chen,She, Dunxian,Wang, Gangsheng,et al. Unravelling spatiotemporal propagation processes among meteorological, soil, and evaporative flash droughts from a three-dimensional perspective[J]. AGRICULTURAL WATER MANAGEMENT,2025,308:16.
APA Hu, Chen.,She, Dunxian.,Wang, Gangsheng.,Zhang, Liping.,Jing, Zhaoxia.,...&Xia, Jun.(2025).Unravelling spatiotemporal propagation processes among meteorological, soil, and evaporative flash droughts from a three-dimensional perspective.AGRICULTURAL WATER MANAGEMENT,308,16.
MLA Hu, Chen,et al."Unravelling spatiotemporal propagation processes among meteorological, soil, and evaporative flash droughts from a three-dimensional perspective".AGRICULTURAL WATER MANAGEMENT 308(2025):16.

入库方式： OAI收割

来源：地理科学与资源研究所

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