[2000年至2022年内蒙古境内息地质量的时空进化和驱动力分析]
Bo-Wen Ye1, Biao Sun1,2,3, Yun-Liang Zhao1
1College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China.
Huan jing ke xue= Huanjing kexue
|July 18, 2025
概括
内蒙古的息地质量在23年内略有,不显著的改善,大多数地区正在改善,但面临着未来退化风险. 关键的驱动因素包括气候和土地利用,需要区域化管理以实现可持续性.
科学领域:
- 生态生态学 生态生态学
- 环境科学 环境科学
- 遥感 遥感 遥感 遥感
背景情况:
- 内蒙古的生态环境对中国北部的生态社区至关重要.
- 息地质量评估对于区域可持续发展至关重要.
研究的目的:
- 分析2000年至2022年内蒙古境内息地质量的空间和时间演变.
- 识别和量化影响息地质量变化的驱动因素.
主要方法:
- 利用谷歌地球引擎 (GEE) 和MODIS数据开发年度遥感生态指数 (RSEI) 时间序列.
- 应用了Theil-sen和Mann-Kendall的趋势测试,赫斯特指数和莫兰的I用于时空分析.
- 使用地理探测器和多尺度地理加权回归 (MGWR) 来量化驱动因素.
主要成果:
- 从2000年到2022年,息地质量呈现出轻微的,不显著的上升趋势 (0.0006 a-1),从东北向西南的空间下降.
- 62.90%的地区经历了息地质量的改善,但未来的趋势表明普遍的退化.
- 观察到高正空间自相关性 (摩兰I>0.9240) ,东部有明显的高高集群,西部有低低集群.
- 温度,降水,蒸发,海拔和土地使用是关键驱动因素,相互作用比单一因素更有解释性.
结论:
- 尽管有轻微的改善,内蒙古的息地质量仍然很低,面临着未来的退化风险.
- 息地质量的空间差异受驱动因素的区域差异的影响.
- 区划管理策略对于实现内蒙古可持续的息地质量至关重要.
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