气候变化领域集成服务门户(CCPortal): Impact of revegetation of the Loess Plateau of China on the regional growing season water balance

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DOI	10.5194/hess-24-515-2020
	Impact of revegetation of the Loess Plateau of China on the regional growing season water balance
	Ge J.; Pitman A.J.; Guo W.; Zan B.; Fu C.
发表日期	2020
ISSN	1027-5606
起始页码	515
结束页码	533
卷号	24 期号:2
英文摘要	To resolve a series of ecological and environmental problems over the Loess Plateau, the "Grain for Green Program" (GFGP) was initiated at the end of 1990s. Following the conversion of croplands and bare land on hillslopes to forests, the Loess Plateau has displayed a significant greening trend, which has resulted in soil erosion being reduced. However, the GFGP has also affected the hydrology of the Loess Plateau, which has raised questions regarding whether the GFGP should be continued in the future. We investigated the impact of revegetation on the hydrology of the Loess Plateau using relatively high-resolution simulations and multiple realizations with the Weather Research and Forecasting (WRF) model. Results suggest that revegetation since the launch of the GFGP has reduced runoff and soil moisture due to enhanced evapotranspiration. Further revegetation associated with the GFGP policy is likely to further increase evapotranspiration, and thereby reduce runoff and soil moisture. The increase in evapotranspiration is associated with biophysical changes, including deeper roots that deplete deep soil moisture stores. However, despite the increase in evapotranspiration, our results show no impact on rainfall. Our study cautions against further revegetation over the Loess Plateau given the reduction in water available for agriculture and human settlements and the lack of any significant compensation from rainfall. © 2020 Wiley-Blackwell. All rights reserved.
语种	英语
scopus关键词	Evapotranspiration; Hydrology; Landforms; Rain; Revegetation; Runoff; Soil conservation; Soil moisture; Weather forecasting; Deep soil moisture; Environmental problems; Grain for greens; Growing season; High resolution simulations; Human settlements; Loess plateau of chinas; Weather research and forecasting models; Sediments; agricultural land; evapotranspiration; growing season; rainfall; runoff; soil moisture; water budget; China; Loess Plateau
来源期刊	Hydrology and Earth System Sciences
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/159509
作者单位	Ge, J., Institute for Climate and Global Change Research, School of Atmospheric Sciences, Nanjing University, Nanjing, 210023, China, ARC Centre of Excellence for Climate Extremes and Climate Change Research Centre, University of New South Wales, Sydney, 2052, Australia; Pitman, A.J., ARC Centre of Excellence for Climate Extremes and Climate Change Research Centre, University of New South Wales, Sydney, 2052, Australia; Guo, W., Institute for Climate and Global Change Research, School of Atmospheric Sciences, Nanjing University, Nanjing, 210023, China, Joint International Research Laboratory of Atmospheric and Earth System Sciences, Nanjing University, Nanjing, 210023, China; Zan, B., Key Laboratory of Land Surface Process and Climate Change in Cold and Arid Regions, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China, University of Chinese Academy of Sciences, Beijing, 100049, China; Fu, C., Institute for Climate and Global Change Research, School of ...
推荐引用方式 GB/T 7714	Ge J.,Pitman A.J.,Guo W.,et al. Impact of revegetation of the Loess Plateau of China on the regional growing season water balance[J]. 中国科学院西北生态环境资源研究院,2020,24(2).
APA	Ge J.,Pitman A.J.,Guo W.,Zan B.,&Fu C..(2020).Impact of revegetation of the Loess Plateau of China on the regional growing season water balance.Hydrology and Earth System Sciences,24(2).
MLA	Ge J.,et al."Impact of revegetation of the Loess Plateau of China on the regional growing season water balance".Hydrology and Earth System Sciences 24.2(2020).