从卫星观测中绘制红树林多特征功能多样性的地图,通过使用光谱生物物理衍生品在密集和碎片化种群中进行卫星观测
Nguyen An Binh1, Leon T Hauser2
1Department of Geography and Remote Sensing, Institute of Life Sciences, Vietnam Academy of Science and Technology, Ho Chi Minh City, Vietnam.
Scientific reports
|July 2, 2025
概括
这项研究使用遥感绘制了红树林功能多样性 (FD) 的地图,揭示了规模和碎片化的挑战. 它推进了蓝色碳生态系统的生物多样性见解.
科学领域:
- 生态生态学 生态生态学
- 遥感 遥感 遥感 遥感
- 环境科学 环境科学
背景情况:
- 红树林生态系统在陆海界面至关重要,支持可持续发展目标.
- 监测红树林的生物多样性至关重要,但由于它们的分散分布,具有挑战性.
- 遥感为绘制红树林功能多样性 (FD) 提供了潜在的潜力.
研究的目的:
- 使用多特征遥感方法绘制红树林功能多样性 (FD) 地图.
- 评估空间规模和碎片化对FD绘图的影响.
- 为红树林蓝碳生态系统提供生物多样性见解.
主要方法:
- 利用Sentinel-2的数据来得出光谱植被指数,叶子叶绿素含量 (LCC),每面积的叶子质量 (LMA) 和等效水厚 (EWT).
- 采用移动窗口方法来量化FD组件:丰度,分歧和均性.
- 分析了空间尺度依赖和输入特征/指数相关性对FD估计的影响.
主要成果:
- 空间规模的依赖显著影响了FD丰富性,特别是在分散的地区.
- 移动窗口大小对空间FD结果产生了重大影响.
- 特征和植被指数的选择影响了计算的生态代表性.
结论:
- 这项研究开创了利用遥感和多特征数据绘制红树林FD的绘图.
- 为了准确地绘制FD地图,必须解决缩放,碎片化和输入选择方面的挑战.
- 该方法为红树林蓝碳管理提供了宝贵的生物多样性见解.
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