从太空看到红树林的健康状况,并使用现场数据
Juliana Nascimento Neres1, Gil Marcelo Reuss Strenzel2, Marcelo Schramm Mielke3
1Laboratório de Ecologia Bentônica, IBIO & CIEnAM & INCT IN-TREE, Universidade Federal da Bahia, Rua Barão de Geremoabo, s/n, Campus de Ondina, Salvador, Bahia, 40170-000, Brazil.
Marine environmental research
|August 27, 2024
概括
遥感 (RS) 有效地监测红树林,但研究往往缺乏明确的健康定义和现场数据验证. 本次审查强调了需要采用综合方法来准确评估红树林生态系统的健康状况.
科学领域:
- 环境科学 环境科学
- 森林生态 森林生态
- 遥感技术 遥感技术 遥感技术
背景情况:
- 遥感 (RS) 对于全球监测红树林至关重要.
- 现有的RS应用程序显示在评估红树林生态系统健康状况时存在不一致.
- 在了解RS和实地数据在健康评估中的联合使用方面存在差距.
研究的目的:
- 调查远程传感 (RS) 和现场数据的综合应用,以评估红树林健康状况.
- 确定目前基于RS的红树林健康监测的常见做法和局限性.
- 分析科学文献中用于红树林生态系统健康的定义和指标.
主要方法:
- 对结合RS和在位数据的研究进行系统文献综述,以研究红树林健康.
- 分析应用的指标和使用的卫星数据的空间分辨率.
- 评估现场数据集成的频率和方法.
主要成果:
- 许多研究都没有明确定义红树林生态系统健康状况.
- 植被指数通常与生态系统健康等同,忽视了其他指标.
- 低至中等空间分辨率卫星主导变化检测,而高分辨率数据的利用较少.
- 综合RS和现场数据仅在39%的文章中使用.
结论:
- 目前的RS方法往往过于简化了红树林生态系统的健康,仅依赖植被指数.
- 需要将现场数据纳入,以对RS衍生的红树林健康评估进行可靠的验证.
- 未来的研究应该专注于开发标准化的方法,将各种RS数据与地面真相测量相结合,以全面监测红树林健康状况.
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