Assessment of ecological geological vulnerability in Mu Us Sandy Land based on GIS and suggestions of ecological protection and restoration

作     者：Jian-yu Liu Hong-feng Nie Liang Xu Chun-lei Xiao Wei Li Guo-li Yuan Yan-peng Huang Xin-yang Ji Tian-qi Li 

作者机构：China Aero Geophysical Survey&Remote Sensing Center for Natural ResourcesChina Geological SurveyMinistry of Natural ResourcesBeijing 100083China China University of Geosciences(Beijing)Beijing 100083China 

出 版 物：《China Geology》 (中国地质(英文))

年 卷 期：2025年第8卷第1期

页      面：117-140页

核心收录：

学科分类：07[理学] 0701[理学-数学] 070101[理学-基础数学] 

基　　金：This research was jointly supported by the project of the China Geological Survey(DD20242481) Key Laboratory of Airborne Geophysics and Remote Sensing Geology,MNR(2020YFL33) 

主　　题：Eco-geological vulnerability Analytic hierarchy process Entropy weight method Evaluation and zonation Mu Us Sandy Land Geology-meteorology-soil-topography-vegetation Precipitation and groundwater Environmental protection and restoration Environmental restoration engineering Inner Mongolia Plateau 

摘      要：Eco-geological vulnerability assessment is a significant research topic within the field of eco-geology,but it remains poorly *** Mu Us Sandy Land,located in the central part of the farming-pastoral ecotone in northern China,plays a critical role in maintaining the ecological security pattern in this ***,this sandy land also faces severe sandy desertification and ecological *** study conducted a regional eco-geological vulnerability assessment of the Mu Us Sandy Land using a comprehensive index evaluation method based on eco-geological theories and survey *** construct an appropriate index system for the eco-geological vulnerability assessment of the Mu Us Sandy Land,the study considered the sandy land’s unique characteristics and identified 15 factors of five categories,namely geology,meteorology,soil,topography,and *** paper calculated the comprehensive weights of all the indices using the analytic hierarchy process(AHP)and the entropy weight method(EWM).Furthermore,it established the eco-geological vulnerability index(EGVI)and obtained the assessment *** results showed that the eco-geological vulnerability of the Mu Us Sandy Land gradually intensifies from east to west,manifested as vulnerable eco-geological conditions ***,extremely vulnerable zones are found in the northwestern and southeastern parts of the study area,highly vulnerable zones in the western and southern parts,moderately vulnerable zones in the central part,and slightly and potentially vulnerable zones in the eastern and southern *** with high spatial autocorrelations include the northern Uxin Banner-Otog Banner-Angsu Town area,the surrounding areas of Hongdunjie Town in the southeastern part of the study area,the Hongshiqiao Township-Xiaohaotu Township area,Otog Front Banner,and Bainijing Town,which should be prioritized in the ecological conservation and ***,the paper proposed suggestions for