气候变化领域集成服务门户(CCPortal): The Compound Effects of Highway Reconstruction and Climate Change on Vegetation Activity over the Qinghai Tibet Plateau: The G318 Highway as a Case Study

CCPortal

DOI	10.3390/rs15235473
	The Compound Effects of Highway Reconstruction and Climate Change on Vegetation Activity over the Qinghai Tibet Plateau: The G318 Highway as a Case Study
	Guo, Linghui; Li, Yao; Luo, Yuanyuan; Gao, Jiangbo; Zhang, Hebing; Zou, Youfeng; Wu, Shaohong
发表日期	2023
EISSN	2072-4292
卷号	15 期号:23
英文摘要	The Qinghai-Tibet Plateau (QTP) is among one of the most sensitive regions to global environmental change worldwide. Although climate change and engineering construction on the QTP have jointly modified the regional vegetation activity, little is known about how this affects the vegetation variation. Using Moderate Resolution Imaging Spectroradiometer (MODIS) Enhanced Vegetation Index (EVI) data from 2000-2021, this study investigated the spatiotemporal variation of vegetation activity and the compound effects of climate change and reconstruction along the Tibetan section of the G318 national highway (TG318) through a novel contribution quantification model and partial correlation analysis, as well as through a structural equation model (SEM). The results showed that the mean growing-season EVI increased significantly at a rate of about 0.0020/year in the western side of the TG318 after reconstruction but fluctuated in the east. Reconstruction generally had a significant effect on the mean growing-season EVI, with contributions of 7.67%, 19.12%, 18.24%, and -4.15% in different sections of the TG318, whereas climate change contributed from -10.14% to 8.84% of the total variation. The mean growing-season EVI negatively correlated with snow cover and minimum temperature in humid and sub-humid regions, whereas it was positively related with vapor pressure in semi-arid regions. Moreover, there existed an obvious lag effect of climate change on the mean growing-season EVI, with lag time generally decreasing from west to east and apparent heterogeneity among different months and regions. These findings will help better understand the environmental impacts along the engineering corridors and provide a scientific basis for ecological conservation in the QTP regions.
关键词	Qinghai-Tibet Plateau effects of climatic and anthropogenic forces vegetation activity G318 highway
英文关键词	ALPINE GRASSLANDS; TEMPERATURE; RESPONSES; IMPACTS; PRECIPITATION; VARIABILITY; SATELLITE; PHENOLOGY; CHINA; MODEL
WOS研究方向	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS记录号	WOS:001116044700001
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/282813
作者单位	Henan Polytechnic University; Chinese Academy of Sciences; Institute of Geographic Sciences & Natural Resources Research, CAS; Qinghai Normal University
推荐引用方式 GB/T 7714	Guo, Linghui,Li, Yao,Luo, Yuanyuan,et al. The Compound Effects of Highway Reconstruction and Climate Change on Vegetation Activity over the Qinghai Tibet Plateau: The G318 Highway as a Case Study[J],2023,15(23).
APA	Guo, Linghui.,Li, Yao.,Luo, Yuanyuan.,Gao, Jiangbo.,Zhang, Hebing.,...&Wu, Shaohong.(2023).The Compound Effects of Highway Reconstruction and Climate Change on Vegetation Activity over the Qinghai Tibet Plateau: The G318 Highway as a Case Study.REMOTE SENSING,15(23).
MLA	Guo, Linghui,et al."The Compound Effects of Highway Reconstruction and Climate Change on Vegetation Activity over the Qinghai Tibet Plateau: The G318 Highway as a Case Study".REMOTE SENSING 15.23(2023).