干旱区生态环境知识资源中心(Arid): Changes in vegetation in China's drylands are closely related to afforestation compared with climate change

Arid

DOI	10.1016/j.scitotenv.2023.169121
	Changes in vegetation in China's drylands are closely related to afforestation compared with climate change
	He, Liang; Guo, Jianbin; Yang, Wenbin; Jiang, Qunou; Li, Xuebin; Chen, Shenggang; Zhang, Mingliang; Li, Donghui
通讯作者	Guo, JB
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2024
卷号	912
英文摘要	The response of vegetation to climate change and human activities has attracted considerable attention. However, quantitative studies on the effects of climate change and human activities on dryland vegetation in different seasons remain unclear. This study investigated the impacts of precipitation, temperature, soil water storage (SWS) (top [0-7 cm], shallow [7-28 cm], and middle [28-100 cm] layers), vapor pressure deficit (VPD), and afforestation on vegetation as well as their relative contribution rates during the rainy season ([RS], June to September), dry season ([DS], November to April), transition season ([TS], May and October), and all year period (AY) in China's drylands from 2001 to 2020 using the first-difference method. Areas with precipitation and SWS showing significant positive correlation with dryland vegetation (p < 0.05) were found to be larger in RS than in DS and TS, and the positive effect of SWS increased with soil depth in the 0-28 cm interval. Increasing VPD induced a significant negative effect on vgetation during RS but it was not predominant in DS and TS. Afforestation showed an extremely significant positive correlated with dryland vegetation across >60 % of China's dryland areas (p < 0.01), but this improvement was found to be limited to regions with the highest afforestation area. Moreover, dryland vegetation dynamics were driven by afforestation in all seasons, with contribution rates of 64.23 %-71.46 %. The effects of SWS and VPD on vegetation driven by precipitation and temperature exceeded the direct effects of precipitation and temperature. Among climatic factors, VPD showed a major regulating effect on dryland vegetation at the top and shallow soil layers in almost all seasons, whereas the relative contribution rate of SWS increased with soil layer. The findings can provide a scientific reference for the sustainable development and protection of drylands under global warming.
英文关键词	Drylands Vegetation dynamics Climate change Afforestation Ecological restoration Relative contribution rates
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001136594200001
WOS关键词	SOIL-WATER ; REGION ; DESERTIFICATION ; TEMPERATURE ; SENSITIVITY ; MITIGATION ; RESOURCES ; MORTALITY ; RESPONSES ; DYNAMICS
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/405451
推荐引用方式 GB/T 7714	He, Liang,Guo, Jianbin,Yang, Wenbin,et al. Changes in vegetation in China's drylands are closely related to afforestation compared with climate change[J],2024,912.
APA	He, Liang.,Guo, Jianbin.,Yang, Wenbin.,Jiang, Qunou.,Li, Xuebin.,...&Li, Donghui.(2024).Changes in vegetation in China's drylands are closely related to afforestation compared with climate change.SCIENCE OF THE TOTAL ENVIRONMENT,912.
MLA	He, Liang,et al."Changes in vegetation in China's drylands are closely related to afforestation compared with climate change".SCIENCE OF THE TOTAL ENVIRONMENT 912(2024).