干旱区生态环境知识资源中心(Arid): On the development and recovery of soil moisture deficit drought events

Arid

DOI	10.1016/j.jhydrol.2024.130920
	On the development and recovery of soil moisture deficit drought events
	Deng, Simin; Tan, Xuezhi; Tan, Xuejin; Wu, Xinxin; Huang, Zeqin; Liu, Yaxin; Liu, Bingjun
通讯作者	Tan, XZ
来源期刊	JOURNAL OF HYDROLOGY
ISSN	0022-1694
EISSN	1879-2707
出版年	2024
卷号	632
英文摘要	Soil moisture drought is one of the driving forces behind agricultural drought and disastrousness for food production, but the understanding of internal drought propagation is limited, making it difficult to track and predict drought propagation. Based on the trend analysis, Spearman correlation analyses, and the random forest model simulations, we analyzed the spatial and temporal distribution characteristics of soil moisture drought propagation globally from 1960 to 2020 and evaluated the contributions of various meteorological factors on soil moisture drought propagation. The results show that the mean drought instantaneous recovery speed (IRS) is 1.52 times greater than the instantaneous development speed (IDS) globally from 1960 to 2020. IDS (IRS) in arid region is lower (higher) by 24.9 % (11.7 %) than in humid areas. The drought IDS statistically increased 0.012 % pentad(-1) year(-1) and drought duration statistically decreased 0.020 pentad year(-1) from 1960 to 2020, especially in the mid- and high-latitudes of the Northern Hemisphere (45-67.5 degrees N). The timing of the occurrence of extreme meteorological conditions shows more significant effects on the propagation of drought than average meteorological conditions within the drought period. Since evapotranspiration (precipitation) exerts greater influences on drought development (recovery) than other meteorological variables, intensified hydrological cycle under a warming climate could possibly accelerate the drought development and recovery.
英文关键词	Soil moisture index Run theory Drought development (recovery) period Instantaneous propagation speed Random forest model
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001194575200001
WOS关键词	FLASH DROUGHTS ; RIVER-BASIN ; CLIMATE ; REANALYSIS ; CHALLENGES ; EVOLUTION ; RESPONSES ; ONSET
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Engineering ; Geology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/404563
推荐引用方式 GB/T 7714	Deng, Simin,Tan, Xuezhi,Tan, Xuejin,et al. On the development and recovery of soil moisture deficit drought events[J],2024,632.
APA	Deng, Simin.,Tan, Xuezhi.,Tan, Xuejin.,Wu, Xinxin.,Huang, Zeqin.,...&Liu, Bingjun.(2024).On the development and recovery of soil moisture deficit drought events.JOURNAL OF HYDROLOGY,632.
MLA	Deng, Simin,et al."On the development and recovery of soil moisture deficit drought events".JOURNAL OF HYDROLOGY 632(2024).