Spatio-temporal evolution and topographic gradient effect of land use and ecosystem service value in the Lhasa River Basin  

作　　者：ZHOU Jianwei FENG Bin WU Hua XU Tong CHEN Linna ZHAO Xinyong GUO Qiyun LI Jiatong ZHANG Chenguang ZHU Kangcheng KONG Yuzhong 

机构地区：[1]School of Ecology and Environment,Tibet University,Lhasa 850000,China [2]School of Engineering,Tibet University,Lhasa 850000,China [3]Joint Laboratory of Plateau Surface Remote Sensing,Tibet University,Lhasa 850000,China

出　　处：《Journal of Mountain Science》2024年第6期2059-2074,共16页山地科学学报（英文）

基　　金：supported by the National Natural Science Foundation of China(Grant No.U20A20112);Construction of Talent Innovation Team and Laboratory Platform of Tibet University-Construction of Plateau Geothermal New Energy Innovation Team and Laboratory Platform(Grant No.2022ZDTD10);Central Support for Local Ministry and Regional Joint Construction/First-class Everest Construction Project-Construction of Geological Resources and Geological Engineering Characteristics(Grant No.Tibetan Finance Pre-indication[2022]No.1).

摘　　要：The Lhasa River Basin forms an essential human settlement area in the southern part of the Qinghai-Tibet Plateau.This study employed ecosystem service value(ESV)evaluation model,terrain gradient grading,and Geodetector to analyze land use and ESV in the Lhasa River Basin from 1985 to 2020.The findings reveal that:(1)From 1985 to 2020,grassland was the dominant land use.There was a trend of grassland reduction and the expansion of other land types.(2)ESV has increased over the research period(with a total increase of 0.84%),with higher values in the southeast and lower values in the northwest.Grassland contributed the most to ESV,and climate regulation and hydrological regulation were the ecosystem services that contribute the most to ESV.(3)Natural factors like NDVI and altitude,as well as economic factors like population density and distance from roads,influenced the spatial differentiation of ESV,the explanatory power of NDVI reached up to 0.47.The interaction between factors had a greater impact than individual factors.These research results can provide theoretical support for national spatial planning and ecological environment protection in the Lhasa River Basin and other similar areas.

关 键 词：Ecosystem services value Land use Terrain gradient effect Lhasa River Basin Driving factors 

分 类 号：X171.1[环境科学与工程—环境科学] F301.2[经济管理—产业经济]