河北地质大学学报2025，Vol.48Issue(1)：78-86,9.DOI:10.13937/j.cnki.hbdzdxxb.2025.01.009
1982-2020年雅鲁藏布江流域植被覆盖变化与驱动因素分析
Analysis of Vegetation Cover Change and Driving Factors in Brahmaputra River Basin from 1982 to 2020
摘要
Abstract
Based on GIMMS NDVI dataset,combined with meteorological and soil data,this study analyzed the spatio-temporal characteristics and related driving factors of vegetation cover in Brahmaputra River basin in recent 39 years by using the methods of ordered cluster mutation analysis,linear regression analysis and geographic detector.The results showed that the vegetation cover of Brahmaputra River basin showed an upward trend during the period from 1982 to 2020.The vegetation cover change was basically stable,and the area of improved area was higher than that of degraded area.NDVI is positively correlated with precipitation and temperature,and the correlation coefficient between NDVI and precipitation is large,indicating that the change of NDVI is more closely related to rainfall.Driving force analysis shows that elevation is the dominant factor of vegetation cover in Brahmaputra River basin.The interactions between soil moisture and altitude,rainfall and altitude,and soil moisture and soil temperature are the dominant interactions of vegetation cover.关键词
雅鲁藏布江流域/归一化植被指数(NDVI)/植被覆盖变化/驱动因子/地理探测器Key words
Brahmaputra River basin/normalized difference vegetation index(NDVI)/vegetation cover change/driving factors/geographical detector分类
环境科学引用本文复制引用
张永成,冯雨晴,陈康,张晓晨..1982-2020年雅鲁藏布江流域植被覆盖变化与驱动因素分析[J].河北地质大学学报,2025,48(1):78-86,9.基金项目
河北省水资源可持续利用与产业结构优化协同创新中心研究生科技创新计划项目(xtzx02) （xtzx02）
河北省水资源可持续利用与产业结构化协同创新中心开放基金(XTCX202401) （XTCX202401）
