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Soil moisture and precipitation dominate the response and recovery times of ecosystems from different types of flash drought in the Yangtze River Basin

文献类型：期刊论文

作者Hu, Chen5; She, Dunxian4,5; Wang, Gangsheng4,5; Zhang, Liping4,5; Jing, Zhaoxia3; Hong, Si4,5; Song, Zhihong2; Xia, Jun1,4,5
刊名AGRICULTURAL AND FOREST METEOROLOGY
出版日期2024-11-15
卷号358页码:16
关键词Flash droughts Response time Recovery time Flash drought types Diverge vegetations
ISSN号0168-1923
DOI10.1016/j.agrformet.2024.110236
产权排序5
英文摘要Flash droughts and their ecological impacts on terrestrial ecosystems have recently garnered increased attention due to their rapid intensification. However, research on the response and recovery of ecosystems to flash droughts, particularly regarding different types of flash droughts and their determinants, remains relatively limited. Here we classified flash droughts into meteorological, evaporative, and soil types based on the differences in primary drivers, and identified them in the middle and lower reaches of Yangtze River Basin (MLRYRB) from 2000 to 2022. We assessed the response and recovery time of ecosystems to different flash droughts based on solar-induced chlorophyll fluorescence (SIF), analyzed the factors affecting response and recovery times using random forest models, and identified the spatial patterns of dominant factors through partial correlation analysis. Our results revealed distinct characteristics among different flash droughts, with soil flash droughts exhibiting the highest frequency and longest duration. The average response time and recovery times ranged from 15.7 to 19.2 days and from 59.6 to 69.2 days, respectively, for different flash droughts, with soil flash droughts presenting the longest response time and shortest recovery time. Among all vegetations, mixed forests exhibited the longest response time to meteorological and soil flash droughts, while woody savannas presented significantly longer recovery time from evaporative and soil flash droughts. Analysis of primary drivers indicated that precipitation predominantly determined the response time to meteorological and evaporative flash droughts, while surface soil moisture played a primary role in soil flash drought. Furthermore, surface soil moisture was found to determine the recovery time from all flash droughts in over 57 % of pixels. Our findings could offer valuable insights into quantifying the ecological impacts and drivers of different flash droughts on ecosystems, deepening our understanding of ecosystem responses to flash droughts.
WOS关键词ONSET ; GRASSLAND ; CARBON
资助项目National Natural Science Foundation of China[52309032] ; Fundamental Research Funds for the Central Universities[2042023kf0162]
WOS研究方向Agriculture ; Forestry ; Meteorology & Atmospheric Sciences
语种英语
WOS记录号WOS:001317935500001
出版者ELSEVIER
资助机构National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities
源URL[http://ir.igsnrr.ac.cn/handle/311030/208316]  
专题陆地水循环及地表过程院重点实验室_外文论文
通讯作者Hu, Chen; She, Dunxian
作者单位1.Chinese Acad Sci, Key Lab Water Cycle & Related Land Surface Proc, Inst Geog Sci & Nat Resources Res, 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. Soil moisture and precipitation dominate the response and recovery times of ecosystems from different types of flash drought in the Yangtze River Basin[J]. AGRICULTURAL AND FOREST METEOROLOGY,2024,358:16.
APA Hu, Chen.,She, Dunxian.,Wang, Gangsheng.,Zhang, Liping.,Jing, Zhaoxia.,...&Xia, Jun.(2024).Soil moisture and precipitation dominate the response and recovery times of ecosystems from different types of flash drought in the Yangtze River Basin.AGRICULTURAL AND FOREST METEOROLOGY,358,16.
MLA Hu, Chen,et al."Soil moisture and precipitation dominate the response and recovery times of ecosystems from different types of flash drought in the Yangtze River Basin".AGRICULTURAL AND FOREST METEOROLOGY 358(2024):16.

入库方式： OAI收割

来源：地理科学与资源研究所

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