干旱区生态环境知识资源中心(Arid): Quantifying the water use efficiency of karst ecosystems and response to environmental factors

Arid

DOI	10.1016/j.ejrh.2024.101799
	Quantifying the water use efficiency of karst ecosystems and response to environmental factors
	Hu, Zeyin; Dai, Quanhou; Yan, Youjin; Yang, Xue; Zhang, You; Li, Huyue; Zhou, Hong; Yi, Xingsong; Yao, Yiwen
通讯作者	Dai, QH
来源期刊	JOURNAL OF HYDROLOGY-REGIONAL STUDIES
EISSN	2214-5818
出版年	2024
卷号	53
英文摘要	Study region: The study area is located in Guizhou province, the centre of the karst region in southwest China. Study focus: As a typical karst region, Guizhou has long faced challenges with water scarcity. Quantifying water use efficiency (WUE) is crucial for the efficient use of water resources and sustainable management. This study examined the spatio-temporal evolution patterns and its driving factors on WUE in Guizhou using Theil-Sen ' s slope, partial correlation methods, and the geographic detector model. New hydrological insights for the region: (1) The multi -annual mean WUE of non -karst region (NKR, 2.75 gC kg -1 H 2 O yr -1 ) is higher than that of karst region (KR, 2.10 gC kg -1 H 2 O yr -1 ) during 2001 - 2020. (2) The rate of increase of WUE was three times higher in KR than in NKR. (3) Precipitation and temperature were identified as the key factors influencing WUE. Interactions between each environmental factors were observed to have both bi-variate and non-linear enhancement effects. Notably, in the NKR, soil moisture, vegetation type and leaf area index were the dominant factors influencing WUE, with interactions between environmental factors had both enhanced and weakened effect on WUE. (4) The synergistic effects of these interactions exceeded the individual or cumulative effects of the two environmental factors. These findings contribute to our understanding of the environmental factors driving changes in WUE in the KR.
英文关键词	Environmental factor Water use efficiency Geographical detector Karst ecosystems
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:001235622300001
WOS关键词	ROCKY DESERTIFICATION ; TERRESTRIAL ECOSYSTEMS ; SOUTHWEST CHINA ; CARBON-DIOXIDE ; CLIMATE-CHANGE ; VEGETATION ; DROUGHT ; FOREST ; NDVI ; PHOTOSYNTHESIS
WOS类目	Water Resources
WOS研究方向	Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/404631
推荐引用方式 GB/T 7714	Hu, Zeyin,Dai, Quanhou,Yan, Youjin,et al. Quantifying the water use efficiency of karst ecosystems and response to environmental factors[J],2024,53.
APA	Hu, Zeyin.,Dai, Quanhou.,Yan, Youjin.,Yang, Xue.,Zhang, You.,...&Yao, Yiwen.(2024).Quantifying the water use efficiency of karst ecosystems and response to environmental factors.JOURNAL OF HYDROLOGY-REGIONAL STUDIES,53.
MLA	Hu, Zeyin,et al."Quantifying the water use efficiency of karst ecosystems and response to environmental factors".JOURNAL OF HYDROLOGY-REGIONAL STUDIES 53(2024).