草地学报2026，Vol.34Issue(6)：2217-2228,12.DOI:10.11733/j.issn.1007-0435.2026.06.024
内蒙古阴山地区植被格局时空演变及其与气候因子的关系
Spatiotemporal Evolution of Vegetation Patterns and Their Relationship with Climatic Factors in the Yin Mountain Region of Inner Mongolia
摘要
Abstract
The Enhanced Vegetation Index(EVI)is a key indicator for characterizing vegetation activity and understanding the processes of the terrestrial ecosystem carbon cycle.Investigating its response to climate change helps deepen the understanding of vegetation-climate interaction mechanisms.This study focused on the Yin Mountain region of Inner Mongolia.Utilizing MODIS EVI datasets and meteorological data from 2001 to 2021,and employing methods such as trend analysis,partial correlation analysis,multiple linear regression,and partial least squares structural equation modeling(PLS-SEM),we analyzed the spatiotemporal patterns of vegetation EVI and climatic factors in the region,and revealed the influence mechanisms of wind speed,precipi-tation,temperature,and solar radiation on EVI changes.The results indicated that from 2001 onwards,the annual mean EVI in the study area showed a fluctuating yet significantly increasing trend,with a slope of 0.002 74 per year(P<0.01).The EVI increased from 0.172 in 2001 to 0.256 in 2021,representing a growth rate of 48.8％.Spatially,EVI increased gradually from northwest to southeast,with most areas showing a sig-nificant increasing trend,and the highest slope(>0.012)was observed in the south.Regarding the influencing mechanisms,EVI in the western and southern parts was primarily driven by wind speed and in the east by radia-tion,while in the north,it was jointly influenced by precipitation,radiation,and temperature.This research provides valuable insights for formulating regional ecological restoration policies.关键词
EVI/气候因子/阴山地区/时空变化Key words
EVI/Climatic factors/Yin Mountain region/Spatiotemporal variation分类
农业科技引用本文复制引用
胡静瑶,刘辰明,吴友福,王宗森,刘宝龙,张格语,温仲明,刘洋洋,胡尔查,赵英涵..内蒙古阴山地区植被格局时空演变及其与气候因子的关系[J].草地学报,2026,34(6):2217-2228,12.基金项目
内蒙古自治区林业科学研究院开放课题(KF2024MS04) （KF2024MS04）
内蒙古自治区林业科学研究院科研能力提升"揭榜挂帅"项目(2024NLTS01) （2024NLTS01）
陕西省林业科技创新重点专项(SXLK2023-02-14)资助 （SXLK2023-02-14）
