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Precipitation exacerbates spatial heterogeneity in the propagation time of meteorological drought to soil drought with increasing soil depth

文献类型：期刊论文

作者Hu, Chen5,6; Xia, Jun3,4,5,6; She, Dunxian4,5,6; Wang, Gangsheng4,5,6; Zhang, Liping4,5,6; Jing, Zhaoxia2; Hong, Si5,6; Song, Zhihong1
刊名ENVIRONMENTAL RESEARCH LETTERS
出版日期2024-06-01
卷号19期号:6页码:10
关键词drought propagation meteorological drought soil drought soil depths China
ISSN号1748-9326
DOI10.1088/1748-9326/ad4975
英文摘要The propagation of meteorological droughts to soil droughts poses a substantial threat to water resources, agricultural production, and social systems. Understanding drought propagation process is crucial for early warning and mitigation, but mechanisms of the propagation from meteorological drought to soil drought, particularly at varying soil depths, remain insufficiently understood. Here, we employ the maximum correlation coefficient method and the random forest (RF) model to investigate the spatiotemporal patterns and drivers of propagation time (PT) from meteorological drought to soil drought at four different depths across China from 1980 to 2018. Our findings reveal consistently higher PT in northern China and lower PT in southern China across varying soil depths, with more pronounced spatial heterogeneity with increasing soil depth. Furthermore, we identify temperature and precipitation as determinants of spatial patterns of PT in surface and deeper soil layers, respectively. Additionally, precipitation emerges as the dominant factor influencing changes in PT between different soil layers. Our study highlights a discernible shift in PT drivers from temperature to precipitation as soil depth increases and the significant impact of precipitation on exacerbating spatial heterogeneity in PT. This study contributes to an enhanced comprehension of the propagation process from meteorological drought to soil drought at different depths, which can aid in establishing practical drought mitigation measures and early warning systems.
WOS关键词CLIMATE-CHANGE ; RIVER-BASIN ; LAND ; MOISTURE
资助项目Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China[52309032] ; Global Land Evaporation Amsterdam Model ; [2042023kf0162]
WOS研究方向Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
语种英语
WOS记录号WOS:001227512000001
出版者IOP Publishing Ltd
资助机构Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; Global Land Evaporation Amsterdam Model
源URL[http://ir.igsnrr.ac.cn/handle/311030/205552]  
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.Changjiang River Sci Res Inst, Wuhan 430010, Peoples R China
2.Changjiang Water Resources Protect Inst, Wuhan 430010, Peoples R China
3.Chinese Acad Sci, Key Lab Water Cycle & Related Land Surface Proc, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
4.Wuhan Univ, Inst Water Carbon Cycles & Carbon Neutral, Wuhan 430072, Peoples R China
5.Wuhan Univ, Hubei Key Lab Water Syst Sci Sponge City Construct, Wuhan 430072, Peoples R China
6.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,Xia, Jun,She, Dunxian,et al. Precipitation exacerbates spatial heterogeneity in the propagation time of meteorological drought to soil drought with increasing soil depth[J]. ENVIRONMENTAL RESEARCH LETTERS,2024,19(6):10.
APA Hu, Chen.,Xia, Jun.,She, Dunxian.,Wang, Gangsheng.,Zhang, Liping.,...&Song, Zhihong.(2024).Precipitation exacerbates spatial heterogeneity in the propagation time of meteorological drought to soil drought with increasing soil depth.ENVIRONMENTAL RESEARCH LETTERS,19(6),10.
MLA Hu, Chen,et al."Precipitation exacerbates spatial heterogeneity in the propagation time of meteorological drought to soil drought with increasing soil depth".ENVIRONMENTAL RESEARCH LETTERS 19.6(2024):10.

入库方式： OAI收割

来源：地理科学与资源研究所

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