干旱区生态环境知识资源中心(Arid): Recent Response of Vegetation Water Use Efficiency to Climate Change in Central Asia

Arid

DOI	10.3390/rs14235999
	Recent Response of Vegetation Water Use Efficiency to Climate Change in Central Asia
	Hao, Haichao; Hao, Xingming; Xu, Jianhua; Chen, Yaning; Zhao, Hongfang; Li, Zhi; Kayumba, Patient Mindje
通讯作者	Xu, JH
来源期刊	REMOTE SENSING
EISSN	2072-4292
出版年	2022
卷号	14 期号:23
英文摘要	Quantifying the coupled cycles of carbon and water is essential for exploring the response mechanisms of arid zone terrestrial ecosystems and for formulating a sustainable and practical solution to issues caused by climate change. Water use efficiency (WUE), one of the comprehensive indicators for assessing plant growth suitability, can accurately reflect vegetation's dynamic response to changing climate patterns. This study assesses the spatio-temporal changes in WUE (ecosystem water use efficiency, soil water use efficiency, and precipitation water use efficiency) from 2000 to 2018 and quantifies their relationship with meteorological elements (precipitation, temperature, drought) and the vegetation index (NDVI). The study finds that the sensitivity of NDVI to WUE is highly consistent with the spatial law of precipitation. The Ep re threshold range of different types of WUE is about 200 mm or 1600 mm (low-value valley point) and 300 mm or 1500 mm (high-value peak point), and the epsilon(Tem) threshold value is 3 similar to 6 degrees C (high-value peak point) and 9 similar to 12 degrees C (low-value valley point). The degree to which vegetation WUE is influenced by precipitation is positively correlated with its time lag, whereas the degree to which temperature influences vegetation is negatively correlated. The WUE time lag is very long in hilly regions and is less impacted by drought; it is quite short in plains and deserts, where it is substantially affected by drought. These findings may be of great significance in responding to the severe situation of increasingly scarce water resources and the deterioration of the ecological environment across Central Asia.
英文关键词	drought meteorological elements sensitivity time lag threshold
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:000896301700001
WOS关键词	TERRESTRIAL ECOSYSTEMS ; SPATIAL VARIABILITY ; CHINA ; PATTERNS ; EVAPOTRANSPIRATION ; TEMPERATURE ; GRASSLAND ; FOREST
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/2XILL650/394247
推荐引用方式 GB/T 7714	Hao, Haichao,Hao, Xingming,Xu, Jianhua,et al. Recent Response of Vegetation Water Use Efficiency to Climate Change in Central Asia[J],2022,14(23).
APA	Hao, Haichao.,Hao, Xingming.,Xu, Jianhua.,Chen, Yaning.,Zhao, Hongfang.,...&Kayumba, Patient Mindje.(2022).Recent Response of Vegetation Water Use Efficiency to Climate Change in Central Asia.REMOTE SENSING,14(23).
MLA	Hao, Haichao,et al."Recent Response of Vegetation Water Use Efficiency to Climate Change in Central Asia".REMOTE SENSING 14.23(2022).