The role of groundwater in the spatio-temporal variations of vegetation water use efficiency in the Ordos Plateau, China
文献类型：期刊论文
| 作者 | Zhang, Haoyue1,2; Zhan, Chesheng1,2; Xia, Jun3; Yeh, Pat J-F4; Ning, Like1,2; Hu, Shi3; Wang, Xu-Sheng5 |
| 刊名 | JOURNAL OF HYDROLOGY
 |
| 出版日期 | 2022-02-01 |
| 卷号 | 605页码:14 |
| 关键词 | Water use efficiency Gross primary production Groundwater depth Drought Ordos Plateau |
| ISSN号 | 0022-1694 |
| DOI | 10.1016/j.jhydrol.2021.127332 |
| 通讯作者 | Zhang, Haoyue(zhanghaoyue@igsnrr.ac.cn) |
| 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. |
| WOS关键词 | NET PRIMARY PRODUCTION ; POPULUS-EUPHRATICA ; ECOSYSTEM WATER ; HYDROCLIMATIC DISTURBANCES ; CLIMATE-CHANGE ; DROUGHT ; CARBON ; MODIS ; EVAPOTRANSPIRATION ; PHOTOSYNTHESIS |
| 资助项目 | National Key Research and Development Program of China[2017YFA0603702] ; Major Science and Technology Project of Inner Mongolia[2020ZD0009] ; National Natural Science Foundation of China[41772249] ; National Natural Science Foundation of China[41971232] |
| WOS研究方向 | Engineering ; Geology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000752550400002 |
| 出版者 | ELSEVIER |
| 资助机构 | National Key Research and Development Program of China ; Major Science and Technology Project of Inner Mongolia ; National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/170431]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Zhang, Haoyue |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Yucheng Comprehens Expt Stn, Yucheng 251200, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China 4.Monash Univ, Discipline Civil Engn, Malaysia Campus, Subang Jaya, Malaysia 5.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]. JOURNAL OF HYDROLOGY,2022,605:14. |
| 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,605,14. |
| 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):14. |
入库方式： OAI收割
来源：地理科学与资源研究所
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