干旱区地理2025，Vol.48Issue(5)：825-837,13.DOI:10.12118/j.issn.1000-6060.2024.305
2001-2020年呼伦贝尔草原土地沙漠化敏感性时空格局演化
Spatiotemporal pattern evolution of land desertification sensitivity in Hulun Buir grassland from 2001 to 2020
摘要
Abstract
Desertification is among the most pressing environmental challenges affecting human society.Under-standing the temporal and spatial changes in desertification sensitivity and revealing its driving factors are crucial for implementation of effective control measures.This study utilized the MEDALUS model,geographic informa-tion system(GIS)spatial analysis,geographic detectors,and other methods to develop a desertification sensitivity assessment model.By integrating various natural and human activity factors,this study aimed to identify desertifi-cation-sensitive areas and reveal the spatiotemporal evolution patterns and driving mechanisms of desertification sensitivity in the Hulun Buir grasslands,located in Hulun Buir City,Inner Mongolia Autonomous Region,China.The results showed the following.(1)From 2001 to 2020,the desertification sensitivity in the Hulun Buir grass-land showed the trend of declining,rising and declining.From 2001 to 2010,the sensitivity exhibited a declining pattern,and then followed by an rising trend from 2010 to 2015,and finally,another phase of decline from 2015 to 2020.(2)Spatial analysis revealed that the desertification sensitivity decreased from west to east across the Hu-lun Buir grasslands.The sensitivity levels were classified as extreme,high,moderate,mild,and insensitive.(3)Climate and vegetation and soil factors were found to exert the greatest influence on desertification sensitivity.Human interference factors played a secondary role,while topographic factors had the least influence.Further-more,the interaction between any two factors demonstrated a greater effect than individual factors alone.The re-sults of this study can offer valuable insights for desertification control and strategy formulation in the Hulun Buir grasslands.关键词
沙漠化敏感性/MEDALUS模型/地理探测器/呼伦贝尔草原Key words
desertification sensitivity/MEDALUS model/geodetector/Hulun Buir grassland引用本文复制引用
勿吉斯古冷,那日苏,丽娜,银山,乌云达来,李明星,赖韶杰..2001-2020年呼伦贝尔草原土地沙漠化敏感性时空格局演化[J].干旱区地理,2025,48(5):825-837,13.基金项目
一流学科科研专项项目(YLXKZX-NSD-039) （YLXKZX-NSD-039）
内蒙古自治区高校科研重点项目(NJZZ23027) （NJZZ23027）
内蒙古师范大学基本科研业务费专项资金(2022JBYJ031) （2022JBYJ031）
内蒙古自然科学基金(2023QN04013)资助 （2023QN04013）
