干旱区生态环境知识资源中心(Arid): Ecological Policies Dominated the Ecological Restoration over the Core Regions of Kubuqi Desert in Recent Decades

Arid

DOI	10.3390/rs14205243
	Ecological Policies Dominated the Ecological Restoration over the Core Regions of Kubuqi Desert in Recent Decades
	Ren, Min; Chen, Wenjiang; Wang, Haibo
通讯作者	Wang, HB
来源期刊	REMOTE SENSING
EISSN	2072-4292
出版年	2022
卷号	14 期号:20
英文摘要	Climate change and human activities significantly affected environmental changes in drylands. However, the relative roles remain unclear regarding these factors' effects on environment changes in drylands. Herein, we analyzed vegetation change trends using remote-sensing datasets to determine the interactions of vegetation, climate, and anthropogenic activities in an arid region of China, Kubuqi Desert. Our study showed that 67.64% of the pixels of fractional vegetation coverage (FVC) increased in 2020 in comparison with those of 1986. The FVC exhibited a significant greening trend (0.0011/yr, p < 0.05) in 1986-2020 as a whole. This greening trend revealed two distinct periods separated by a turning point in 2001. There was no clear trend of FVC before 2001, and then there was a dramatically greening trend since 2001 in most regions of the study area. The increasing rate (0.0036/yr) in the later period was three times higher than the entire period. The accelerated increasing trend was due to the variable compound effects of climate and human activities. The correlation between FVC and precipitation was mainly positive, which outweighs the significantly negative correlation between vegetation and temperature. However, both climatic factors cannot well explain the trends of vegetation dynamics, implying a possible role for human activities. Generally, climate change and anthropogenic activities contributed 42.15% and 57.85% to the overall vegetation variations in 1986-2020. Specifically, the relative role of the two factors was vastly different in two distinct periods. Climate change led the dominant roles (58.68%) in the vegetation variations in 1986-2001, while anthropogenic activities dominated (86.79%) in driving vegetation recovery in the period after 2001. Due to the massive ecological conservation programs such as the Grain for Green Project launched in 2001, substantial deserts have been transformed into grasslands and forests. This analysis highlights the ecological policies largely responsible for vegetation restoration and provides references for ecological protection and sustainable development in eco-fragile ecosystems.
英文关键词	drylands NDVI Hangjin Banner grain for green program vegetation change anthropogenic activities Google Earth Engine
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:000873492800001
WOS关键词	HORQIN SANDY LAND ; VEGETATION DYNAMICS ; DRIVING FORCES ; CHINA ; DESERTIFICATION ; PRECIPITATION ; SCIENCE ; TREND ; NDVI
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/2XILL650/394219
推荐引用方式 GB/T 7714	Ren, Min,Chen, Wenjiang,Wang, Haibo. Ecological Policies Dominated the Ecological Restoration over the Core Regions of Kubuqi Desert in Recent Decades[J],2022,14(20).
APA	Ren, Min,Chen, Wenjiang,&Wang, Haibo.(2022).Ecological Policies Dominated the Ecological Restoration over the Core Regions of Kubuqi Desert in Recent Decades.REMOTE SENSING,14(20).
MLA	Ren, Min,et al."Ecological Policies Dominated the Ecological Restoration over the Core Regions of Kubuqi Desert in Recent Decades".REMOTE SENSING 14.20(2022).