在2001-2024年期间,改善中国的植被生态质量及其驱动因素
Mengyang Xu1, Xiaoxiao Li1, Shasha Fan2
1School of Geographic Sciences, Xinyang Normal University, Xinyang 464000, China; Henan Key Laboratory for Synergistic Prevention of Water and Soil Environmental Pollution, Xinyang Normal University, Xinyang 464000, China.
Environmental research
|March 4, 2026
概括
中国的植被生态质量指数 (EQI) 从2001年到2024年显著提高了9%,这是由生态项目和大气二氧化碳的上升推动的. 人类活动和二氧化碳增长等环境因素是这种植被质量提高的关键驱动因素.
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:
- 中国国家生态文明和碳中和目标需要了解植被生态质量指数 (EQI) 动态.
- 之前的研究往往忽略了在EQI评估中的大气二氧化碳和沉积等关键驱动因素.
- 需要一个全面的归因框架来评估影响植被健康的因素.
研究的目的:
- 量化中国的EQI从2001年到2024年的变化.
- 识别和归因EQI变化的驱动因素,包括人类活动,大气中的CO2,沉积和气候变化.
- 为生态管理和气候适应战略提供证据.
主要方法:
- 利用遥感产品在全国范围内分析EQI变化.
- 制定了一个全国性的归因框架,包括大气中的二氧化碳和沉积.
- 量化了人类活动和环境因素对EQI变化的贡献.
主要成果:
- 在2001年至2024年期间,中国的EQI增长了约9% (0.106 yr^-1).
- 人类活动占EQI变化的50.1%,大气二氧化碳的增加是主要的环境因素 (42.8%).
- 在中国西部和北部观察到显著的EQI改善,在一些东南沿海和高海拔地区出现停滞/退化.
结论:
- 中国的植被生态质量在过去二十年里得到了很大改善.
- 植被恢复计划和大气二氧化碳度升高是提高EQI的主要驱动因素.
- 研究结果支持针对性的生态管理和适应气候变化的战略,以适应植被质量的区域差异.
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