Vegetation restoration dominated the variation of water use efficiency in China
文献类型：期刊论文
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| 作者 | Xue, Yayong; Liang, Haibin ; Zhang, Baoqing; He, Chansheng
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| 刊名 | JOURNAL OF HYDROLOGY
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| 出版日期 | 2022-09-01 |
| 卷号 | 612期号:0页码:128257 |
| ISSN号 | 0022-1694 |
| 关键词 | LIGHT-USE EFFICIENCY GROSS PRIMARY PRODUCTION LAND-ATMOSPHERE WATER CLIMATE-CHANGE TERRESTRIAL ECOSYSTEMS REFERENCE EVAPOTRANSPIRATION FOREST ECOSYSTEMS LOESS PLATEAU CARBON MODEL |
| 英文摘要 | Implementation of numerous ecological restoration programs over the last two decades has significantly increased vegetation coverage in China. However, the response of the coupled carbon and water cycles to the large-scale vegetation restoration and the underlying mechanisms remain unclear. This study analyzed the spatiotemporal patterns of regional gross primary productivity (GPP), evapotranspiration (ET) and water use efficiency (WUE) in China using the two-leaf light use efficiency (TL-LUE) and the Priestley Taylor Jet Propulsion Laboratory (PT-JPL) models during the 2000-2017 period. The influencing mechanisms of anthropogenic revegetation and climatic factors on regional WUE were also analyzed. Results indicate that (1) both the GPP and WUE showed a significant increasing tendency with inter-annual change rates of 10.53 g C m(-2) yr(-1) and 0.01 g C kg(-1) H2O yr(-1), respectively; while the inter-annual change rate of annual ET was 1.43 kg H2O m(-2) yr(-1). (2) Spatially, the regional GPP dominated WUE variation of more than 79.51% of the total area. (3) Among the influencing factors, the greening of vegetation driven by human activities (LAI(h)) explained 35.27% of the WUE variation in China, much more than the climatic factors over during the study period. At the regional scale, human-driven vegetation greening also dominated the increasing WUE at regional scale. These findings provide important information to support large-scale ecological restoration policy/decision making to improve ecosystem services in China. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/47373]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 作者单位 | 1.Western Michigan Univ, Dept Geog Environm & Tourism, Kalamazoo, MI 49008 USA 2.Lanzhou Univ, Coll Earth & Environm Sci, Key Lab Western Chinas Environm Syst, Minist Educ, Lanzhou 730000, Gansu, Peoples R China 3.Xinjiang Univ, Coll Geog & Remote Sensing Sci, Urumqi 830046, Peoples R China 4.Taiyuan Normal Univ, Inst Geog Sci, Jinzhong 030619, Shanxi, Peoples R China 5.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xue, Yayong,Liang, Haibin,Zhang, Baoqing,et al. Vegetation restoration dominated the variation of water use efficiency in China, Vegetation restoration dominated the variation of water use efficiency in China.pdf[J]. JOURNAL OF HYDROLOGY,2022,612(0):128257. |
| APA | Xue, Yayong,Liang, Haibin,Zhang, Baoqing,&He, Chansheng.(2022).Vegetation restoration dominated the variation of water use efficiency in China.JOURNAL OF HYDROLOGY,612(0),128257. |
| MLA | Xue, Yayong,et al."Vegetation restoration dominated the variation of water use efficiency in China".JOURNAL OF HYDROLOGY 612.0(2022):128257. |
入库方式： OAI收割
来源：生态环境研究中心
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