干旱区生态环境知识资源中心(Arid): Comparison of Flash Drought and Traditional Drought on Characteristics and Driving Forces in Xinjiang

Arid

DOI	10.3390/rs15194758
	Comparison of Flash Drought and Traditional Drought on Characteristics and Driving Forces in Xinjiang
	Zhang, Jing; Zhang, Min; Yu, Jialu; Yu, Yang; Yu, Ruide
通讯作者	Zhang, M
来源期刊	REMOTE SENSING
EISSN	2072-4292
出版年	2023
卷号	15 期号:19
英文摘要	In the context of climate warming, flash drought has become increasingly frequent, posing significant threats to agriculture, ecosystems, and the environment. Xinjiang, located in an arid and semi-arid region, necessitates a thorough investigation into the distinctions between flash drought and traditional drought, as well as an exploration of the driving forces behind both types of drought. In this study, soil moisture data from ERA5-Land were utilized to construct a framework for the identification of flash drought and traditional drought based on historical events. The Geodetector was employed to explore the factors that influence the spatial heterogeneity of these two drought forms. The findings illuminate that (1) in terms of spatial distribution, traditional drought predominated in southern Xinjiang, while flash drought exhibited greater prominence in northern Xinjiang. (2) Regarding changes in trends, both flash drought and traditional drought exhibited an increasing trend in frequency since the 1990s, with the frequency trend of flash drought passing the significance test (alpha <= 0.05). Additionally, the severity of both flash drought and traditional drought displayed a noteworthy and statistically significant increase within sliding windows ranging from 46 to 62 years. (3) Concerning the driving forces, precipitation emerged as the principal driving force behind both flash drought and traditional drought. Furthermore, human activities exerted a more substantial influence on traditional drought, and the interactions involving human activities had the potential to significantly amplify the explanatory power of the spatial heterogeneity for both drought types. (4) In terms of the drought risk, a notable variation in the risk of flash drought was observed across various ecological zones, with the highest risk occurring in mildly fragile ecological zones. Furthermore, when comparing the results from 1995 to 2019, the flash drought risk exhibited a marked increase in severely fragile ecological zones. This study enriches the understanding of the dynamics of flash drought and traditional drought in Xinjiang and carries important implications for enhancing the precision of drought monitoring and early warning systems.
英文关键词	flash drought frequency Geodetector severity traditional drought Xinjiang
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:001083002900001
WOS关键词	SHORT-TERM DROUGHTS ; SOIL-MOISTURE ; ONSET
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/398331
推荐引用方式 GB/T 7714	Zhang, Jing,Zhang, Min,Yu, Jialu,et al. Comparison of Flash Drought and Traditional Drought on Characteristics and Driving Forces in Xinjiang[J],2023,15(19).
APA	Zhang, Jing,Zhang, Min,Yu, Jialu,Yu, Yang,&Yu, Ruide.(2023).Comparison of Flash Drought and Traditional Drought on Characteristics and Driving Forces in Xinjiang.REMOTE SENSING,15(19).
MLA	Zhang, Jing,et al."Comparison of Flash Drought and Traditional Drought on Characteristics and Driving Forces in Xinjiang".REMOTE SENSING 15.19(2023).