干旱区生态环境知识资源中心(Arid): Will Human-Induced Vegetation Regreening Continually Decrease Runoff in the Loess Plateau of China?

Arid

DOI	10.3390/f10100906
	Will Human-Induced Vegetation Regreening Continually Decrease Runoff in the Loess Plateau of China?
	Li, Yanzhong 1; Mao, Dehua 2; Feng, Aiqing 3,4; Schillerberg, Tayler 5
通讯作者	Mao, Dehua
来源期刊	FORESTS
EISSN	1999-4907
出版年	2019
卷号	10 期号:10
英文摘要	China has become the largest contributing country to global vegetation regreening. However, the regreening pattern and subsequent impact on arid areas have not been comprehensively evaluated. Therefore, we selected the Loess Plateau, a representative arid region that has undergone evident vegetation restoration, to investigate the spatial patterns and temporal trends, as well as the drivers of vegetation change. This study primarily focused on 12 afforested watersheds during 2000-2018. Furthermore, both the impacts of vegetation regreening on runoff for the past two decades and the future projections were quantified based on the fraction of photosynthetically active radiation (fPAR), the Budyko model, and the global climate models (GCMs). fPAR for the last two decades indicates that vegetation in the Loess Plateau has experienced a continuous increasing trend during the growing season, primarily in response to the implementation of the Grain for Green Project (GFGP). Of the 12 watersheds, 9 experienced significant fPAR change with a change rate above 50%, and 11 exhibited a significant increase (p < 0.05) in runoff sensitivity to vegetation regreening, which indicates that vegetation regreening plays an increasingly important role in controlling runoff variation. The decline in runoff caused by vegetation regreening was particularly noticeable before 2011 or 2012; afterwards, runoff tended to vary with precipitation. In the future (2020-2049 and 2050-2099), decrease in runoff by regreening will be limited, as runoff is anticipated to decrease by 3.5% in 2020-2049 and 4.1% in 2050-2099 with a 20% increase in fPAR. These results indicate that runoff tends to be stable even with continuous vegetation regreening. While the reduction of runoff by regreening will be limited in the future, rapid human-induced vegetation regreening may aggravate water scarcity when flash droughts occur and may result in disasters in water-limited regions to the socio-economic stability and agriculture. Our study will provide an applicable theoretical foundation for water resources decision-making and ecological restoration.
英文关键词	remote vegetation index Loess Plateau runoff change regreening Budyko model GCMs
类型	Article
语种	英语
国家	Peoples R China ; USA
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000498395600083
WOS关键词	CLIMATE-CHANGE ; WATER-BALANCE ; VARIABILITY ; MODEL ; SOIL ; EVAPOTRANSPIRATION ; AFFORESTATION ; DECLINE
WOS类目	Forestry
WOS研究方向	Forestry
EI主题词	2019-10-01
来源机构	南京信息工程大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310158
作者单位	1.Nanjing Univ Informat Sci & Technol, Sch Hydrol & Water Resources, Nanjing 210044, Jiangsu, Peoples R China; 2.Chinese Acad Sci, Northeast Inst Geog & Agroecol, Key Lab Wetland Ecol & Environm, Changchun 130102, Jilin, Peoples R China; 3.China Meteorol Adm, Natl Climate Ctr, Beijing 100081, Peoples R China; 4.China Meteorol Adm, Lab Climate Studies, Beijing 100081, Peoples R China; 5.Auburn Univ, Dept Crop Soil & Environm Sci, Auburn, AL 36849 USA
推荐引用方式 GB/T 7714	Li, Yanzhong,Mao, Dehua,Feng, Aiqing,et al. Will Human-Induced Vegetation Regreening Continually Decrease Runoff in the Loess Plateau of China?[J]. 南京信息工程大学,2019,10(10).
APA	Li, Yanzhong,Mao, Dehua,Feng, Aiqing,&Schillerberg, Tayler.(2019).Will Human-Induced Vegetation Regreening Continually Decrease Runoff in the Loess Plateau of China?.FORESTS,10(10).
MLA	Li, Yanzhong,et al."Will Human-Induced Vegetation Regreening Continually Decrease Runoff in the Loess Plateau of China?".FORESTS 10.10(2019).