评估对干旱地区土地利用变化的生态环境质量反应:内蒙古林河区的案例研究
Yu-Ting Zhao1,2,3, Zhang Yu-Feng1,3, Liu Huyuan4
1School of Geographic Sciences, Inner Mongolia Normal School, Hohhot, China.
Science progress
|July 29, 2025
概括
林河区的生态质量从2005年到2020年有所改善,主要是由于土地使用的变化. 然而,由于转化为城市和住宅用地,一些地区经历了退化.
科学领域:
- 环境科学 环境科学
- 遥感 遥感 遥感 遥感
- 生态生态学 生态生态学
背景情况:
- 林河区是黄河大都市区的一部分,面临着重大的生态挑战,包括耕地盐化和荒漠化.
- 有效的生态管理对于该地区的可持续发展和环境保护至关重要.
研究的目的:
- 分析2005年至2020年林河区生态环境质量的分布和变化.
- 为恢复盐性土地和保护黄河生态系统提供科学见解.
主要方法:
- 利用了Landsat TM/OLI卫星图像从2005年到2020年.
- 开发了一种遥感生态指数,使用绿色,湿度,干燥度和温度的主要组件分析.
- 通过将生态指数与土地使用变化数据重叠来评估生态反应.
主要成果:
- 2005年至2020年期间,土地利用结构保持相对稳定.
- 耕地表现出最高的生态指数值,而未使用的土地表现出最低的值.
- 整体生态质量有所改善,生态指数从0.5087上升到0.6837.
结论:
- 生态质量在64.96平方公里改善,归因于土地利用变化,如耕地-草原和住宅转化为耕地.
- 生态退化发生在161.89平方公里,主要是由于耕地转化为草原和住宅区.
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