干旱区生态环境知识资源中心(Arid): Impacts of climate change and anthropogenic activities on the normalized difference vegetation index of desertified areas in northern China

Arid

DOI	10.1007/s11442-023-2093-y
	Impacts of climate change and anthropogenic activities on the normalized difference vegetation index of desertified areas in northern China
	Meng, Nan; Wang, Nai'ang; Cheng, Hongyi; Liu, Xiao; Niu, Zhenmin
通讯作者	Wang, NA
来源期刊	JOURNAL OF GEOGRAPHICAL SCIENCES
ISSN	1009-637X
EISSN	1861-9568
出版年	2023
卷号	33 期号:3 页码:483-507
英文摘要	Vegetation plays a key role in maintaining ecosystem stability, promoting biodiversity conservation, serving as windbreaks, and facilitating sand fixation in deserts. Based on the Moderate Resolution Imaging Spectroradiometer Normalized Difference Vegetation Index (MODIS NDVI) and climate data, a Theil-Sen median trend analysis combined with the Mann-Kendall test and partial correlation and residual analyses were employed to explore spatiotemporal patterns of vegetation dynamics and key drivers in the Badain Jaran and Tengger deserts and Mu Us Sandy Land. Data were collected during the growing season between 2001 and 2020. Further analyses quantified the relative contribution of climate variation and anthropogenic activities to NDVI changes. Results revealed a predominantly increasing trend for average NDVI. The spread of average annual NDVI and growth trends of the vegetation were determined to be influenced by spatial differences. The area with improved vegetation was greater than that of the degraded region. Climate variability and human activities were driving forces controlling vegetation cover changes, and their effects on vegetation dynamics varied by region. The response of vegetation dynamics was stronger for precipitation than temperature, indicating that precipitation was the main climate variable influencing the NDVI changes. The relative role of human activities was responsible for > 70% of the changes, demonstrating that human activities were the main driving factor of the NDVI changes. The implementation of ecological engineering is a key driver of increased vegetation coverage and has improved regional environmental quality. These results enhance our knowledge regarding NDVI change affected by climate variation and human activities and can provide future theoretical guidance for ecological restoration in arid areas.
英文关键词	desert sandy land vegetation dynamics climate variation human activities relative contribution rate
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000948349900004
WOS关键词	US SANDY LAND ; LOESS PLATEAU ; TENGGER DESERT ; NDVI ; RESTORATION ; MOUNTAINS ; DYNAMICS ; PROJECT ; TRENDS ; GROWTH
WOS类目	Geography, Physical
WOS研究方向	Physical Geography
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/397339
推荐引用方式 GB/T 7714	Meng, Nan,Wang, Nai'ang,Cheng, Hongyi,et al. Impacts of climate change and anthropogenic activities on the normalized difference vegetation index of desertified areas in northern China[J],2023,33(3):483-507.
APA	Meng, Nan,Wang, Nai'ang,Cheng, Hongyi,Liu, Xiao,&Niu, Zhenmin.(2023).Impacts of climate change and anthropogenic activities on the normalized difference vegetation index of desertified areas in northern China.JOURNAL OF GEOGRAPHICAL SCIENCES,33(3),483-507.
MLA	Meng, Nan,et al."Impacts of climate change and anthropogenic activities on the normalized difference vegetation index of desertified areas in northern China".JOURNAL OF GEOGRAPHICAL SCIENCES 33.3(2023):483-507.