Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019WR027019 |
Assessing the impacts of vegetation greenness change on evapotranspiration and water yield in China | |
Peng Bai; Xiaomang Liu; Yongqiang Zhang; Changming Liu | |
2020-05-16 | |
发表期刊 | Water Resources Research |
出版年 | 2020 |
英文摘要 | Vegetation plays an important role in regulating terrestrial water and energy fluxes. Recent research reported that China is the largest contributor to the global net increase in green foliage. Such large‐scale vegetation greenness change would inevitably affect the water budget across China. In this study, we evaluated the effects of vegetation greenness change on evapotranspiration (ET) and water yield in China from 1982 to 2014 with a process‐based conceptual hydrologic model and a detrending experiment of vegetation index. On the national scale, the change in vegetation greenness was dominated by an increasing trend (greening), which has led to an increase in ET and a decline in water yield from 1982 to 2014. The contribution of vegetation greenness change to the trend of annual ET and water yield is 0.25 mm/yr and ‐0.16 mm/yr, respectively. Spatially, the relative change in ET and runoff caused by vegetation greenness change is significantly greater in water‐limited areas than in energy‐limited areas. Vegetation greening exacerbated water scarcity in water‐limited areas. Therefore, the ecological restoration policy should fully consider the negative effect of vegetation greening on water yield in water‐limited regions and balance the conflicting water demands between the ecosystem and human beings. |
领域 | 资源环境 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/267628 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | Peng Bai,Xiaomang Liu,Yongqiang Zhang,et al. Assessing the impacts of vegetation greenness change on evapotranspiration and water yield in China[J]. Water Resources Research,2020. |
APA | Peng Bai,Xiaomang Liu,Yongqiang Zhang,&Changming Liu.(2020).Assessing the impacts of vegetation greenness change on evapotranspiration and water yield in China.Water Resources Research. |
MLA | Peng Bai,et al."Assessing the impacts of vegetation greenness change on evapotranspiration and water yield in China".Water Resources Research (2020). |
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