The current status, potential and challenges of remote sensing for large-scale mangrove studies
The current status, potential and challenges of remote sensing for large-scale mangrove studies
复制标题
遥感在大尺度红树林研究中的现状、潜力和挑战
DOI：
10.1080/01431161.2022.2145584
复制
发表时间：
2022-09
影响因子：
3.4
通讯作者：
Ying Lu;Le Wang
中科院分区：
文献类型：
--
作者：
Ying Lu;Le Wang
大规模的红树林研究对于沿海森林恢复和减缓气候变化至关重要，一个令人震惊的事实证明了这一点：在过去的50年里，全球红树林减少了30%以上。因此，如此迅速的下降导致了全球森林砍伐造成的额外碳排放的10%。遥感在大型红树林研究中发挥着不可或缺的作用。然而，关于遥感如何帮助大规模红树林研究的现状和进展还没有报道。更重要的是，此类研究的潜力和挑战尚未揭开面纱。为了弥补这些差距，我们通过全面的文献综述，调查了遥感大规模红树林研究的进展、驱动因素和未来方向。我们披露了四个主要研究课题：范围划定、植被结构、物种组成和生态过程。大规模的红树林研究仍处于初级阶段，因此，并不像传统红树林研究中所揭示的那样，呈现出明显的年代性转变。尽管硬件和软件的进步使开展大规模红树林研究成为可能，但由于实地样本和高分辨率遥感图像不足，完成这些研究仍然具有挑战性。此外，我们还发现，红树林特有的主题，如向外生长，仍未被探索，有待进一步调查。
ABSTRACT Large-scale mangrove studies are pivotal for coastal forest restoration and climate change mitigation as evidenced by an alarming fact that globally mangrove has declined more than 30% in the last 50 years. Consequently, such a rapid decline leads to 10% of the additional carbon emissions due to global deforestation. Remote sensing plays an indispensable role in studying large-scale mangroves. However, the status and evolution of how remote sensing helps large-scale mangrove studies have not been reported. More importantly, the potential and challenges of such studies are yet unveiled. To bridge these gaps, we investigated the evolutions, drivers, and future directions for remote sensing large-scale mangrove studies through a comprehensive literature review. We disclosed four key major research topics: extent delineation, vegetation structure, species composition, and ecological processes. Large-scale mangrove studies are still in their infancy, therefore, does not present distinctively chronological transitions as revealed by their counterpart in conventional mangrove studies. Although hardware and software advancements have made it viable to carry out large-scale mangrove studies, it is still challenging to culminate them, owing to the insufficient field samples and fine-resolution remote sensing imagery. Moreover, we found that topics exclusive to mangrove forests, such as outwilling, are still unexplored and waiting for further investigation.