干旱区生态环境知识资源中心(Arid): Characteristics of NDVI Changes in the Altay Region from 1981 to 2018 and Their Relationship to Climatic Factors

Arid

DOI	10.3390/land12030564
	Characteristics of NDVI Changes in the Altay Region from 1981 to 2018 and Their Relationship to Climatic Factors
	Yan, Yang; Cheng, Junhui; Li, Yongkang; Fan, Jie; Wu, Hongqi
通讯作者	Wu, HQ
来源期刊	LAND
EISSN	2073-445X
出版年	2023
卷号	12 期号:3
英文摘要	Vegetation growth and its response to climatic factors have become one of the most pressing issues in ecological research. However, no consensus has yet been reached on how to resolve this problem in arid areas with a high-elevation gradient and complex underlying surface. Here, NOAA CDR AVHRR NDVI V5 for 1981-2018 and China's regional surface meteorological faction-driven datasets were used. General linear regression, the Mann-Kendall test and sliding t-test, Pearson correlations, and the Akaike information criterion (AIC), on a grid-scale, were applied to analyze the annual normalized difference vegetation index (NDVI) and its relationship with temperature and precipitation in the Altay region. Results revealed that the temporal trend of NDVI for most grid cells was non-significant. However, mountains, coniferous forests, grasslands, and meadows in the high-elevation zone displayed a slow increasing trend in NDVI. Further, NDVI was positively correlated with the mean annual temperature and total annual precipitation, the latter playing a more significant role. Yet, for desert and shrub vegetation and coniferous forest, their NDVI had insignificant negative correlations with the mean annual temperature. Hence, both the trends and drivers of NDVI of high elevation are highly complex. This study's findings provide a reference for research on vegetation responses to climate change in arid areas having a high-elevation gradients and complex underlying surfaces.
英文关键词	NDVI complex underlying surface high elevations spatial and temporal variation characteristics climate-driven Altay region
类型	Article
语种	英语
开放获取类型	gold
收录类别	SSCI
WOS记录号	WOS:000958379800001
WOS关键词	GEOGRAPHICALLY WEIGHTED REGRESSION ; SPATIOTEMPORAL VARIATION ; ARID REGION ; VEGETATION ; RESPONSES ; XINJIANG ; IMPACTS ; CHINA ; PLATEAU ; FORESTS
WOS类目	Environmental Studies
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/2XILL650/397635
推荐引用方式 GB/T 7714	Yan, Yang,Cheng, Junhui,Li, Yongkang,et al. Characteristics of NDVI Changes in the Altay Region from 1981 to 2018 and Their Relationship to Climatic Factors[J],2023,12(3).
APA	Yan, Yang,Cheng, Junhui,Li, Yongkang,Fan, Jie,&Wu, Hongqi.(2023).Characteristics of NDVI Changes in the Altay Region from 1981 to 2018 and Their Relationship to Climatic Factors.LAND,12(3).
MLA	Yan, Yang,et al."Characteristics of NDVI Changes in the Altay Region from 1981 to 2018 and Their Relationship to Climatic Factors".LAND 12.3(2023).