Divergent hydrological response to large-scale afforestation and vegetation greening in China

doi:10.1126/sciadv.aar4182

	Divergent hydrological response to large-scale afforestation and vegetation greening in China
	Wang, K (Wang, Kai)2; Zhou, LM (Zhou, Liming)7; Li, Y (Li, Yue)2; Piao, SL (Piao, Shilong)2,3,4; Li, LZX (Li, Laurent Z. X.)5; Chen, AP (Chen, Anping)1; Wang, XH (Wang, Xuhui)2; Ciais, P (Ciais, Philippe)6; Huang, L (Huang, Ling)2; Lian, X (Lian, Xu)2
刊名	SCIENCE ADVANCES
	2018-05-01
卷号	4 期号:5 页码:文献号 eaar4182
关键词	LAND-SURFACE PRECIPITATION GENERAL-CIRCULATION SOIL-MOISTURE LOESS PLATEAU WATER-BALANCE CLIMATE CARBON DEFORESTATION IMPACTS TREND
ISSN号	2375-2548
DOI	10.1126/sciadv.aar4182
英文摘要	China has experienced substantial changes in vegetation cover, with a 10% increase in the leaf area index and an similar to 41.5 million-hectare increase in forest area since the 1980s. Earlier studies have suggested that increases in leaf area and tree cover have led to a decline in soil moisture and runoff due to increased evapotranspiration (ET), especially in dry regions of China. However, those studies often ignored precipitation responses to vegetation increases, which could offset some of the negative impact on soil moisture by increased ET. We investigated 30-year vegetation impacts on regional hydrology by allowing for vegetation-induced changes in precipitation using a coupled land-atmosphere global climate model, with a higher spatial resolution zoomed grid over China. We found high spatial heterogeneity in the vegetation impacts on key hydrological variables across China. In North and Southeast China, the increased precipitation from vegetation greening and the increased forest area, although statistically insignificant, supplied enough water to cancel out enhanced ET, resulting in weak impact on soil moisture. In Southwest China, however, the increase in vegetation cover significantly reduced soil moisture while precipitation was suppressed by the weakened summer monsoon. In Northeast China, the only area where forest cover declined, soil moisture was significantly reduced, by -8.1 mm decade(-1), likely because of an intensified anticyclonic circulation anomaly during summer. These results suggest that offline model simulations can overestimate the increase of soil dryness in response to afforestation in North China, if vegetation feedbacks lead to increased precipitation like in our study.
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	AMER ASSOC ADVANCEMENT SCIENCE
WOS记录号	WOS:000432440600022
内容类型	期刊论文
源URL	[http://ir.itpcas.ac.cn/handle/131C11/8658]
专题	青藏高原研究所_图书馆
作者单位	1.Purdue Univ, Dept Forestry & Nat Resources, W Lafayette, IN 46907 USA; 2.Peking Univ, Sinofrench Inst Earth Syst Sci, Coll Urban & Environm Sci, Beijing 100871, Peoples R China; 3.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol & Biodivers, Beijing 100085, Peoples R China; 4.Chinese Acad Sci, Ctr Excellence Tibetan Earth Sci, Beijing 100085, Peoples R China; 5.[Li, Laurent Z. X.] Sorbonne Univ, CNRS, Lab Meteorol Dynam, Ecole Normale Super,Ecole Polytech, F-75252 Paris, France; 6.Univ Paris Saclay, Univ Versailles St Quentin, Commissariat Energie Atom & Energies Alternat, Inst Pierre Simon Laplace,CNRS,Lab Sci Climat & E, F-91191 Gif Sur Yvette, France; 7.SUNY Albany, Dept Atmospher & Environm Sci, Albany, NY 12222 USA.
推荐引用方式 GB/T 7714	Wang, K ,Zhou, LM ,Li, Y ,et al. Divergent hydrological response to large-scale afforestation and vegetation greening in China[J]. SCIENCE ADVANCES,2018,4(5):文献号 eaar4182.
APA	Wang, K .,Zhou, LM .,Li, Y .,Piao, SL .,Li, LZX .,...&Zeng, ZZ .(2018).Divergent hydrological response to large-scale afforestation and vegetation greening in China.SCIENCE ADVANCES,4(5),文献号 eaar4182.
MLA	Wang, K ,et al."Divergent hydrological response to large-scale afforestation and vegetation greening in China".SCIENCE ADVANCES 4.5(2018):文献号 eaar4182.