干旱区生态环境知识资源中心(Arid): Actual Evapotranspiration Dominates Drought in Central Asia

Arid

DOI	10.3390/rs15184557
	Actual Evapotranspiration Dominates Drought in Central Asia
	Zhao, Zhuoyi; Hao, Xingming; Fan, Xue; Zhang, Jingjing; Zhang, Sen; Li, Xuewei
通讯作者	Hao, XM
来源期刊	REMOTE SENSING
EISSN	2072-4292
出版年	2023
卷号	15 期号:18
英文摘要	Central Asia is a drought-prone region that is sensitive to global climate change. The increased actual evapotranspiration intensifies the drought impacts in this area. However, little is known about the similarities and differences between various types of drought in Central Asia, as well as the relative importance of water income and consumption processes during drought events. Therefore, this study evaluates the trends and characteristics of meteorological, agricultural, and hydrological droughts in Central Asia using precipitation, soil moisture, and terrestrial water storage as indicators; explores the temporal correlation of and spatial similarity between various types of drought; and quantitatively assesses the contribution of water balance variables to drought intensity. The results indicate that drought has intensified in Central Asia, and the trends of precipitation, soil moisture, and terrestrial water storage in this region were -0.75 mm center dot yr(-1) (p = 0.36), -0.0003 m(3)center dot m(-3) yr(-1) (p < 0.01), and -0.3742 cm center dot yr(-1) (p < 0.001), respectively. Severe droughts are typically short in duration and high in intensity. Three various types of drought have low temporal correlation and spatial similarity. Furthermore, agricultural and hydrological droughts were primarily driven by actual evapotranspiration, accounting for relative contributions of 64.38% and 51.04% to these drought types, respectively. Moreover, the extent of increased actual evapotranspiration expanded to cover 49.88% of the region, exacerbating agricultural and hydrological droughts in 23.88% and 35.14% of the total study area, respectively. The study findings demonstrate that actual evapotranspiration plays a critical role in causing droughts. This study establishes a theoretical foundation to carry out drought assessment, the construction of multivariate drought indices, and water resource management in Central Asia.
英文关键词	actual evapotranspiration arid region Central Asia drought assessment relative contribution spatiotemporal similarity
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:001078235300001
WOS关键词	CLIMATE-CHANGE ; SATELLITE ; TERRESTRIAL ; INDEX ; SEVERITY ; PROGRESS ; IMPACTS ; PATTERN ; CYCLE ; AREA
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/2XILL650/398322
推荐引用方式 GB/T 7714	Zhao, Zhuoyi,Hao, Xingming,Fan, Xue,et al. Actual Evapotranspiration Dominates Drought in Central Asia[J],2023,15(18).
APA	Zhao, Zhuoyi,Hao, Xingming,Fan, Xue,Zhang, Jingjing,Zhang, Sen,&Li, Xuewei.(2023).Actual Evapotranspiration Dominates Drought in Central Asia.REMOTE SENSING,15(18).
MLA	Zhao, Zhuoyi,et al."Actual Evapotranspiration Dominates Drought in Central Asia".REMOTE SENSING 15.18(2023).