干旱区生态环境知识资源中心(Arid): The trend shift caused by ecological restoration accelerates the vegetation greening of China's drylands since the 1980s

Arid

DOI	10.1088/1748-9326/ac6002
	The trend shift caused by ecological restoration accelerates the vegetation greening of China's drylands since the 1980s
	Li, Zidong; Wang, Shuai; Li, Changjia; Ye, Chongchong; Gao, Dexin; Chen, Peng
通讯作者	Wang, S
来源期刊	ENVIRONMENTAL RESEARCH LETTERS
ISSN	1748-9326
出版年	2022
卷号	17 期号:4
英文摘要	Satellite observations since the early 1980s have revealed a trend of 'Earth greening' across global terrestrial ecosystems. Dryland vegetation is more sensitive to climate change and human activities. China's drylands are among the largest in extent worldwide, and large-scale ecological restoration of these areas has been implemented since the late 1970s, which has resulted in more complicated but still poorly quantified vegetation dynamics. To figure out the vegetation dynamics and associated driving forces, we provide an assessment of the vegetation dynamics from 1982 to 2015 using the CO2 fertilization effect function, principal component regression, Residual Trend analysis, and Breaks For Additive Seasonal and Trend methods based on the ERA5 climate factors and GIMMS 3.1 normalized difference vegetation index datasets. This study shows that anthropogenic impacts and CO2 fertilization have jointly led to vegetation greening in China's drylands since the 1980s, and ecological restoration has accelerated this greening since the 2000s. The results show that the vegetation greening in China's drylands (41.51% of the study area, +0.60 x 10(-3) yr(-1)) is mainly driven by CO2 fertilization (+0.55 x 10(-3) yr(-1)) and anthropogenic activities (+0.12 x 10(-3) yr(-1)). The anthropogenic effects are especially higher on the Loess Plateau (+1.01 x 10(-3) yr(-1)) and the Three-North region (+0.23 x 10(-3) yr(-1)). The vegetation dynamics shifts in 6.73% (31.64 Mha) of China's drylands were directly attributed to anthropogenic impacts around the 2000s. When the anthropogenic effect was intensified, the vegetation dynamics shifted from no change to greening and vice versa, which significantly intensified the vegetation greening since the 1980s. These results capture the processes of ecological programs and provide an assessment of the effects of ecological restoration. This work provides a credible attribution of the vegetation greenness dynamics and trend shifts in China's drylands, thus facilitating a better understanding of regional environmental change and management.
英文关键词	residual trend analysis principal component regression drylands ecological restoration vegetation China
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000778387900001
WOS关键词	LAND DEGRADATION ; TERRESTRIAL ECOSYSTEMS ; DESERTIFICATION ; SENSITIVITY ; CLIMATE ; VARIABILITY ; EARTH
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392504
推荐引用方式 GB/T 7714	Li, Zidong,Wang, Shuai,Li, Changjia,et al. The trend shift caused by ecological restoration accelerates the vegetation greening of China's drylands since the 1980s[J],2022,17(4).
APA	Li, Zidong,Wang, Shuai,Li, Changjia,Ye, Chongchong,Gao, Dexin,&Chen, Peng.(2022).The trend shift caused by ecological restoration accelerates the vegetation greening of China's drylands since the 1980s.ENVIRONMENTAL RESEARCH LETTERS,17(4).
MLA	Li, Zidong,et al."The trend shift caused by ecological restoration accelerates the vegetation greening of China's drylands since the 1980s".ENVIRONMENTAL RESEARCH LETTERS 17.4(2022).