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2025 , Vol. 48 >Issue 5: 825 - 837

DOI: https://doi.org/10.12118/j.issn.1000-6060.2024.305

生物与土壤

2001—2020年呼伦贝尔草原土地沙漠化敏感性时空格局演化

  • 勿吉斯古冷 ,
  • 那日苏 ,
  • 丽娜 ,
  • 银山 ,
  • 乌云达来 ,
  • 李明星 ,
  • 赖韶杰
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  • 1.内蒙古师范大学地理科学学院，内蒙古 呼和浩特 010022
    2.内蒙古师范大学经济管理学院，内蒙古 呼和浩特 010022
勿吉斯古冷（1993-），女，硕士研究生，主要从事沙漠化敏感性评价研究. E-mail: wujisiguleng0318@163.com
那日苏（1989-），男，博士，讲师，主要从事沙漠化监测与防治研究. E-mail: nars2022@163.com

收稿日期: 2024-05-17

  修回日期: 2024-07-19

  网络出版日期: 2025-05-13

基金资助

一流学科科研专项项目(YLXKZX-NSD-039);内蒙古自治区高校科研重点项目(NJZZ23027);内蒙古师范大学基本科研业务费专项资金(2022JBYJ031);内蒙古自然科学基金(2023QN04013)

收起

Spatiotemporal pattern evolution of land desertification sensitivity in Hulun Buir grassland from 2001 to 2020

  • Wujisiguleng ,
  • Narisu ,
  • LI Na ,
  • YIN Shan ,
  • Wuyundalai ,
  • LI Mingxing ,
  • LAI Shaojie
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  • 1. College of Geographical Sciences, Inner Mongolia Normal University, Hohhot 010022, Inner Mongolia, China
    2. College of Economic and Trading Management, Inner Mongolia Normal University, Hohhot 010022, Inner Mongolia, China

Received date: 2024-05-17

  Revised date: 2024-07-19

  Online published: 2025-05-13

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摘要

沙漠化是对人类社会影响最严重的环境问题之一，探究沙漠化敏感性的时空变化以及揭示其驱动因素是防治沙漠化的关键。基于地中海荒漠化与土地利用（MEDALUS）模型，采用GIS空间分析、地理探测器等方法，以多种自然因素和人类活动因素结合构建沙漠化敏感性评估模型，揭示呼伦贝尔草原沙漠化敏感性的时空演变规律及其驱动机制。结果表明：（1） 2001—2020年，呼伦贝尔草原沙漠化敏感性程度呈下降-上升-下降趋势，其中，2001—2010年呈下降趋势，2010—2015年上升，2015—2020年再次出现下降现象。（2） 在空间分布上，呼伦贝尔草原沙漠化敏感性程度由西向东降低，依次分布为极度、高度、中度、轻度和不敏感。（3） 气候、植被及土壤要素对沙漠化敏感性的影响力最大，其次是人为干扰要素，而地形要素影响最低，并且任意2个要素的交互作用都大于单个要素。研究结果可为呼伦贝尔草原沙漠化防治和策略的制定提供借鉴。

关键词： 沙漠化敏感性; MEDALUS模型; 地理探测器; 呼伦贝尔草原

本文引用格式

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 . DOI: 10.12118/j.issn.1000-6060.2024.305

Abstract

Desertification is among the most pressing environmental challenges affecting human society. Understanding 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 information 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 desertification-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 grassland 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 Hulun 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. Furthermore, the interaction between any two factors demonstrated a greater effect than individual factors alone. The results of this study can offer valuable insights for desertification control and strategy formulation in the Hulun Buir grasslands.

Key words： desertification sensitivity; MEDALUS model; geodetector; Hulun Buir grassland

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