在内蒙古实施生态保护已经减缓了草原退化
Haojun Zheng1,2,3, Yao Huang4, Wen Zhang2
1Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China.
Fundamental research
|December 30, 2025
概括
在内蒙古,内蒙古是内蒙古.
科学领域:
- 生态生态学 生态生态学
- 遥感 遥感 遥感 遥感
- 环境科学 环境科学
背景情况:
- 内蒙古的草原面临严重的退化.
- 自2000年代初开始的生态恢复计划旨在扭转这一趋势.
- 这些计划的长期有效性需要进行定量评估.
研究的目的:
- 量化评估内蒙古的草原退化状况和动态.
- 评估生态恢复计划对草原恢复的影响.
主要方法:
- 从1982年到2020年使用了长期遥感数据 (GIMMS NDVI,MODIS NDVI).
- 计算的部分植被覆盖 (FVC) 和草原退化指数 (GDI).
主要成果:
- 内蒙古84.6%的草原已经退化 (GDI<0.9).
- 存在显著的空间差异,西部地区的退化程度更高.
- 随着时间的推移,退化草原的比例有所下降,但恢复速度很慢,在2011-2020年仍有约75%的退化.
结论:
- 生态保护措施减缓了退化,但没有阻止它.
- 草原退化仍然是一个严重的问题,特别是在内蒙古西部.
- 区域特定的草原保护和恢复战略至关重要.
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