干旱区生态环境知识资源中心(Arid): The role of groundwater in the spatio-temporal variations of vegetation water use efficiency in the Ordos Plateau, China

Arid

DOI	10.1016/j.jhydrol.2021.127332
	The role of groundwater in the spatio-temporal variations of vegetation water use efficiency in the Ordos Plateau, China
	Zhang, Haoyue; Zhan, Chesheng; Xia, Jun; Yeh, Pat J-F; Ning, Like; Hu, Shi; Wang, Xu-Sheng
通讯作者	Zhang, HY (corresponding author)，Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China. ; Zhang, HY (corresponding author)，Chinese Acad Sci, Yucheng Comprehens Expt Stn, Yucheng 251200, Peoples R China.
来源期刊	JOURNAL OF HYDROLOGY
ISSN	0022-1694
EISSN	1879-2707
出版年	2022
卷号	605
英文摘要	Groundwater influences the water and carbon cycle by supplying moisture to plants in the semi-arid and arid zones. However, little is known about the response of ecosystem water use efficiency (WUE) to climate change in different groundwater depth (GD) sections. Recent research has shown that plant photosynthesis and growth are closely related to GD via field experiments but the wider recognition of GD effect on regional-scale ecosystems has not been yet established. In this study, we test whether the GD has an impact on ecosystem WUE and its variability to climate change at the regional scale. Based on the observed data of nearly 3000 wells, meteorological data (precipitation and pan evaporation), and the 0.01 degrees-resolution remote sensing datasets including gross primary production (GPP), evapotranspiration (ET), and normalized difference vegetation index (NDVI), we explored the spatio-temporal variations of WUE and its composites (i.e., GPP and ET), and their characteristics depending on GD under different aridity conditions and biomes across the Ordos Plateau, a semi-arid to arid area in northern China. Results show that WUE increases with decreasing GD due to water availability in the semi-arid lands where WUE variability is mainly regulated by biological processes (i.e., GPP), while WUE is insensitive to the changes in GD across the arid zone where the physical processes (i.e., ET) control WUE change. However, when drought happens the groundwater-independent vegetation in the arid zone can also utilize groundwater, characterized by lower reductions of GPP with the decrease in GD. A dense vegetation condition (i. e., large NDVI) is more vulnerable to climatic disturbance over the semi-arid zone because it tends to decrease GPP and WUE, especially in the large GD regions. These findings have important implications for reasonable land use and groundwater management over the semi-arid and arid regions.
英文关键词	Water use efficiency Gross primary production Groundwater depth Drought Ordos Plateau
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000752550400002
WOS关键词	NET PRIMARY PRODUCTION ; POPULUS-EUPHRATICA ; ECOSYSTEM WATER ; HYDROCLIMATIC DISTURBANCES ; CLIMATE-CHANGE ; DROUGHT ; CARBON ; MODIS ; EVAPOTRANSPIRATION ; PHOTOSYNTHESIS
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/2XILL650/376846
作者单位	[Zhang, Haoyue; Zhan, Chesheng; Ning, Like] Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China; [Zhang, Haoyue; Zhan, Chesheng; Ning, Like] Chinese Acad Sci, Yucheng Comprehens Expt Stn, Yucheng 251200, Peoples R China; [Xia, Jun; Hu, Shi] Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China; [Yeh, Pat J-F] Monash Univ, Discipline Civil Engn, Malaysia Campus, Subang Jaya, Malaysia; [Wang, Xu-Sheng] China Univ Geosci, Key Lab Groundwater Circulat & Environm Evolut, Minist Educ, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Haoyue,Zhan, Chesheng,Xia, Jun,et al. The role of groundwater in the spatio-temporal variations of vegetation water use efficiency in the Ordos Plateau, China[J],2022,605.
APA	Zhang, Haoyue.,Zhan, Chesheng.,Xia, Jun.,Yeh, Pat J-F.,Ning, Like.,...&Wang, Xu-Sheng.(2022).The role of groundwater in the spatio-temporal variations of vegetation water use efficiency in the Ordos Plateau, China.JOURNAL OF HYDROLOGY,605.
MLA	Zhang, Haoyue,et al."The role of groundwater in the spatio-temporal variations of vegetation water use efficiency in the Ordos Plateau, China".JOURNAL OF HYDROLOGY 605(2022).