气候变化领域集成服务门户(CCPortal): Effects of Climate Variability and Human Activities on Vegetation Dynamics across the Qinghai-Tibet Plateau from 1982 to 2020

CCPortal

DOI	10.3390/rs15204988
	Effects of Climate Variability and Human Activities on Vegetation Dynamics across the Qinghai-Tibet Plateau from 1982 to 2020
	Liu, Yiyang; Xie, Yaowen; Guo, Zecheng; Xi, Guilin
发表日期	2023
EISSN	2072-4292
卷号	15 期号:20
英文摘要	In recent years, vegetation on the Qinghai-Tibet Plateau (QTP) has undergone significant greening. However, the causal factors underpinning this phenomenon, whether attributable to temperature fluctuations, precipitation patterns, or anthropogenic interventions, remain a subject of extensive scholarly debate. This study conducted a comprehensive analysis of the evolving vegetation across the QTP. The National Oceanic and Atmospheric Administration Climate Data Record Advanced Very High Resolution Radiometer Normalized Vegetation Difference Index (NOAA CDR AVHRR NDVI) dataset was employed to elucidate the intricate relationship between climatic variables and human activities driving vegetative transformations. The findings were as follows: The NDVI on the QTP has exhibited a significant greening trend at a rate of 0.0013/a (per year). A minor decline, accounting for only 17.6% of grasslands, was observed, which was primarily concentrated in the northwestern and northern regions. Through residual analysis, climate change was found to be the predominant driver, explaining 70.6% of the vegetation variability across the plateau. Concurrently, noticeable trends in temperature and precipitation increases were observed on the QTP, with the southern region demonstrating improved sensitivity to precipitation alterations. In summary, these results substantiate that a confluence of climatic warming, enhanced moisture availability, and a reduction in livestock population collectively creates an environment conducive to enhanced vegetation vigor on the QTP. This study highlights the significance of acknowledging the dual influence of climate and human agency in shaping vegetative dynamics, which is a critical consideration for informed land management strategies and sustainable development initiatives on this ecologically pivotal plateau.
关键词	QTP vegetation climate change human activities
英文关键词	COVER VARIATIONS; TRENDS; RESPONSES; EARTH; NDVI
WOS研究方向	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS记录号	WOS:001095127300001
来源期刊	REMOTE SENSING
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/283269
作者单位	Lanzhou University
推荐引用方式 GB/T 7714	Liu, Yiyang,Xie, Yaowen,Guo, Zecheng,et al. Effects of Climate Variability and Human Activities on Vegetation Dynamics across the Qinghai-Tibet Plateau from 1982 to 2020[J],2023,15(20).
APA	Liu, Yiyang,Xie, Yaowen,Guo, Zecheng,&Xi, Guilin.(2023).Effects of Climate Variability and Human Activities on Vegetation Dynamics across the Qinghai-Tibet Plateau from 1982 to 2020.REMOTE SENSING,15(20).
MLA	Liu, Yiyang,et al."Effects of Climate Variability and Human Activities on Vegetation Dynamics across the Qinghai-Tibet Plateau from 1982 to 2020".REMOTE SENSING 15.20(2023).