干旱区生态环境知识资源中心(Arid): Precipitation and Anthropogenic Activities Jointly Green the China-Mongolia-Russia Economic Corridor

Arid

DOI	10.3390/rs14010187
	Precipitation and Anthropogenic Activities Jointly Green the China-Mongolia-Russia Economic Corridor
	Li, Xiang; Zhang, Xueqin; Xu, Xiaoming
通讯作者	Zhang, XQ (corresponding author)，Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Datun Rd, Beijing 100101, Peoples R China.
来源期刊	REMOTE SENSING
EISSN	2072-4292
出版年	2022
卷号	14 期号:1
英文摘要	Climate change and anthropogenic activities are widely considered the main factors affecting vegetation growth. However, their relative contributions are under debate. Within the non-climatic impact, detailed human activities, particularly government policy adjustments, are less investigated. In this study, we develop a fractional vegetation coverage (FVC) extraction method based on MODIS-EVI satellite data to analyze the spatiotemporal variation of vegetation and its attributions in the China-Mongolia-Russia Economic Corridor (CMREC). The average FVC has improved, with a general increase of 0.02/10a from 2000 to 2020. We construct a driving factor identification system for FVC change, based on partial and multiple correlation coefficients, and we divide the driving forces of FVC changes into seven climate-driven types and one non-climate-driven type. The results reveal that FVC changes caused by climatic factors account for 28.2% of CMREC. The most prominent greening (19.5%) is precipitation-driven, and is extensively distributed in Khentii Aimag, Mongolia; southeast Inner Mongolia; west Jilin Province; and southwest Heilongjiang Province, China. Moreover, we quantify the relative contribution of climatic and non-climatic factors to significant FVC change using the first-difference multivariate regression method. The results indicate that the effects of non-climatic factors on vegetation change outweigh those of climatic factors in most areas. According to the land cover change and regional policy adjustment, anthropogenic activities such as afforestation, reclamation, and planting structure adjustment explain most vegetation improvement in the Northeast Plain; eastern Inner Mongolia; and the Hetao Irrigation District, China. Meanwhile, both vegetation improvement and degradation disperse concurrently in the Mongolian and Russian parts of CMREC, where climate change and anthropogenic activities positively and negatively affect vegetation change, respectively. Despite the greening in most CMREC, it must be noted that human-induced greening is unsustainable to some degree. The overdevelopment of black soil area and sandy land, adverse effects of afforestation projects, and natural hazards related to weather and climate extremes altogether threaten the local ecological security in the long run. Therefore, governments should develop new desertification countermeasures in accordance with the laws of nature, and enhance international cooperation to guarantee the ecological safety of CMREC.
英文关键词	vegetation coverage climate change anthropogenic activities attribution analysis desertification China-Mongolia-Russia Economic Corridor (CMREC)
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:000758379100001
WOS关键词	VEGETATION INDEX ; CLIMATE-CHANGE ; LAND ; NDVI ; COVER ; MODIS ; DESERTIFICATION ; WIND ; REGRESSION ; TRENDS
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/376693
作者单位	[Li, Xiang; Zhang, Xueqin; Xu, Xiaoming] Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Datun Rd, Beijing 100101, Peoples R China; [Li, Xiang; Xu, Xiaoming] Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Li, Xiang,Zhang, Xueqin,Xu, Xiaoming. Precipitation and Anthropogenic Activities Jointly Green the China-Mongolia-Russia Economic Corridor[J],2022,14(1).
APA	Li, Xiang,Zhang, Xueqin,&Xu, Xiaoming.(2022).Precipitation and Anthropogenic Activities Jointly Green the China-Mongolia-Russia Economic Corridor.REMOTE SENSING,14(1).
MLA	Li, Xiang,et al."Precipitation and Anthropogenic Activities Jointly Green the China-Mongolia-Russia Economic Corridor".REMOTE SENSING 14.1(2022).