Effect of natural and anthropogenic factors on the vegetation distribution in central Loess Plateau, China  

作　　者：LI Tao GUAN Ting YI Xue 

机构地区：[1]School of Statistics,Xi'an University of Finance and Economics,Xi’an 710000,China [2]Population Resources and Environment Statistics Research Centre,Xi'an University of Finance and Economics,Xi’an 710000,China [3]Institute of Atmospheric Environment,China Meteorological Administration,Shenyang 110166,China [4]Shenyang Institute of Agricultural and Ecological Meteorology,Chinese Academy of Meteorological Sciences,Shenyang 110166,China

出　　处：《Journal of Mountain Science》2025年第4期1415-1430,共16页山地科学学报(英文)

基　　金：supported by the National Key Research and Development Program of China(Grant No.2022YFF0801304);Philosophy and Social Science Foundation of China(Grant No.23BRK011,24CTJ021);the Humanities and Social Sciences Research Planning Fund of the Ministry of Education,China(Grant No.22YJAZH020);Shaanxi Provincial Social Science Foundation(Grant No.2024D041);Graduate Innovation Funds of Xi’an University of Finance and Economics(Grant No.23YC011);the Youth Innovation Team of Shaanxi Universities,China。

摘　　要：The Loess Plateau region in China is characterized by a fragile environment,where vegetation is susceptible to both natural variations and anthropogenic influences.Previous research has indicated a greening trend in vegetation across the Loess Plateau over the past two decades.However,the specific contributions of natural and anthropogenic drivers,both individually and interactively,to vegetation distribution remain unclear.To address this gap,we conducted a study using Shaanxi Province as a case area.Utilizing multisource data,we employed the Geographical Detector Model(GDM)to analyze the impacts of natural and human related factors on vegetation distribution.Our analysis revealed that the average NDVI(Normalized Difference Vegetation Index)increased at a rate of 0.006 per year from 2000 to 2021.Notably,88.8%of the region experienced vegetation greening,while 4.5%showed significant declines in NDVI,particularly in areas,such as Xi'an,Weinan,Baoji,Hanzhong,and Ankang.Furthermore,NDVI trend projections suggest that the area undergoing vegetation degradation may surpass the area showing improvement in the future.The study identified that vegetation distribution was influenced by both natural and anthropogenic factors for the whole study area.Precipitation,surface types and land use type were the primary factors with q values above 0.5.During the study period,impacts of GDP,nighttime lights and population density among anthropogenic factors on vegetation distribution increased by 130%,125%and 41%,respectively.Conversely,except for slope and aspect,natural factors'influence on vegetation distribution declined by 5%to 26%.The impact of driving factors on NDVI distribution varied across ecological regions.In Fenwei Basin Agro-Ecoregion(EcoregionⅢ),the influence of anthropogenic factors on vegetation distribution was greater than that in the other three ecoregions.Precipitation primarily affected the vegetation distribution in Loess Plateau Agricultural and Grassland Ecoregion(EcoregionⅡ).Additionally,the combined i

关 键 词：Vegetation restoration Herb roots Shrub roots Roots proportion Reinforced soil Soil mechanics 

分 类 号：Q948[生物学—植物学]