整个"一带一路"地区生态系统质量的时空空间变化
Xiangqin Wei1, Tianhai Cheng1, Jian Yang1
1Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China.
Sensors (Basel, Switzerland)
|September 28, 2023
概括
一带一路倡议 (BRI) 地区.
科学领域:
- 环境科学 环境科学
- 遥感 遥感 遥感 遥感
- 生态系统质量评估 生态系统质量评估
背景情况:
- 一带一路 (B&R) 倡议 (BRI) 刺激了发展,但也引发了生态问题.
- 在B&R地区缺乏对生态系统质量变化的全面评估.
- 需要客观的方法来评估一带一路倡议对环境的影响.
研究的目的:
- 开发一个客观的,自动的方法来评估生态系统的质量.
- 分析B&R地区2016-2020年生态系统质量的时空变化.
- 为B&R地区的生态管理和可持续发展提供数据.
主要方法:
- 使用遥感数据建立了一个生态系统质量指数 (EQI).
- 关键参数包括叶面积指数 (LAI),部分植被覆盖 (FVC) 和初级生产率 (GPP).
- EQI值被分为五个级别 (优秀到差),以映射时空变化.
主要成果:
- 在B&R地区的生态系统质量主要为中等到差,超过68%的面积.
- 优质地区占研究区域的不到12%.
- 超过99%的B&R地区在2016年至2020年期间,EQI没有显著变化.
结论:
- 在B&R地区的生态系统质量通常很差,在2016-2020年期间基本保持稳定.
- 在此期间",一带一路"倡议的实施并没有导致生态系统质量严重恶化.
- 结果支持明智的决策,为未来的环境管理和B&R地区的可持续发展做出决定.
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