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基于关键指标和理想参考框架评估生态系统质量和稳定性:青海藏高原的案例研究
Jitao Zhou1, Xiaofeng Wang2, Xiaoxue Wang1
1School of Land Engineering, Chang'an University, Xi'an, 710054, China.
Journal of environmental management
|September 17, 2024
概括
青海 - 西藏高原 青海 - 西藏高原
科学领域:
- 生态生态学 生态生态学
- 环境科学 环境科学
- 地理 地理 地理 地理.
背景情况:
- 中国优先考虑生态系统质量和稳定性 (EQS) 的提升.
- 环境质量标准的系统评估方法有限,特别是在青海-西藏高原 (QTP).
- 现有的评估框架和机制需要进一步探索.
研究的目的:
- 构建一个全面的评估框架,以评估青海藏高原 (QTP) 的生态系统质量和稳定性 (EQS).
- 分析2000年至2018年的QTP EQS的时空变化.
- 确定影响QTP环境质量标准的关键驱动因素.
主要方法:
- 开发了一个评估框架,使用"理想的参考系统和关键指标"方法.
- 综合生态系统的结构,功能和景观脆弱性特征.
- 使用分析层次过程 (AHP) 和重量方法确定指标权重.
- 使用基于最佳参数的地理探测器 (OPGD) 分析了时空变化和驱动因素.
主要成果:
- 在QTP的EQS中,东南地区的EQS值较高,西北地区的EQS值较低.
- 从2000年到2018年,整体EQS有所改善,高高低低匹配模式占主导地位.
- 植被覆盖,蒸发和降雨是关键的自然驱动因素;人类活动的影响正在增加.
- 在气候过渡区和冰川地区观察到不同的生态系统反应.
结论:
- 开发的框架允许精确评估区域EQS.
- QTP生态系统从气候变暖和生态保护措施中受益.
- 这些发现为在自然和人为影响下管理高原生态系统提供了科学基础.
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