Response of vegetation variation to climate change and human activities in the Shiyang River Basin of China during 2001-2022

作     者：SUN Chao BAI Xuelian WANG Xinping ZHAO Wenzhi WEI Lemin SUN Chao;BAI Xuelian;WANG Xinping;ZHAO Wenzhi;WEI Lemin

作者机构：Northwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhou 730000China University of Chinese Academy of SciencesBeijing 100049China Gansu Provincial Academy of Water SciencesLanzhou 730000China 

出 版 物：《Journal of Arid Land》 (干旱区科学（英文版）)

年 卷 期：2024年第16卷第8期

页      面：1044-1061页

核心收录：

学科分类：0830[工学-环境科学与工程（可授工学、理学、农学学位）] 07[理学] 070601[理学-气象学] 0706[理学-大气科学] 0713[理学-生态学] 

基　　金：National Natural Science Foundation of China(42230720) 

主　　题：vegetation variation climate change land use change normalized difference vegetation index(NDVI) enhanced vegetation index(EVI) Shiyang River Basin 

摘      要：Understanding the response of vegetation variation to climate change and human activities is critical for addressing future conflicts between humans and the environment,and maintaining ecosystem ***,we aimed to identify the determining factors of vegetation variation and explore the sensitivity of vegetation to temperature(SVT)and the sensitivity of vegetation to precipitation(SVP)in the Shiyang River Basin(SYRB)of China during *** climate data from climatic research unit(CRU),vegetation index data from Moderate Resolution Imaging Spectroradiometer(MODIS),and land use data from Landsat images were used to analyze the spatial-temporal changes in vegetation indices,climate,and land use in the SYRB and its sub-basins(i.e.,upstream,midstream,and downstream basins)during *** regression analysis and correlation analysis were used to explore the SVT and SVP,revealing the driving factors of vegetation *** increasing trends(P0.05)were detected for the enhanced vegetation index(EVI)and normalized difference vegetation index(NDVI)in the SYRB during 2001-2022,with most regions(84%)experiencing significant variation in vegetation,and land use change was determined as the dominant factor of vegetation ***-significant decreasing trends were detected in the SVT and SVP of the SYRB during *** were spatial differences in vegetation variation,SVT,and *** NDVI and EVI exhibited increasing trends in the upstream,midstream,and downstream basins,the change slope in the downstream basin was lower than those in the upstream and midstream basins,the SVT in the upstream basin was higher than those in the midstream and downstream basins,and the SVP in the downstream basin was lower than those in the upstream and midstream *** and precipitation changes controlled vegetation variation in the upstream and midstream basins while human activities(land use change)dominated vegetation variation in the d