Miyamoto Asako, Sano Makoto, Terazono Ryuichi, Yamada Shigeki, Shimizu Akira
Forestry and Forest Products Research Institute, 1 Matsunosato, Tsukuba, Ibaraki, 305-8687, Japan.
Bio-oriented Technology Research Advancement Institution, National Agriculture and Food Research Organization, 8 Higashida, Kawasaki, Kanagawa, 210-0005, Japan.
J Environ Manage. 2021 Jun 1;287:112337. doi: 10.1016/j.jenvman.2021.112337. Epub 2021 Mar 19.
Among the ecosystem services that humans use from forest ecosystems, wood resources are one of the basic services that are essential to human life. Since the use of wood resources disturbs ecosystems, overharvesting destroys local ecosystems, resulting in a decline in ecosystem services. Therefore, there is a need to balance the use of wood resources by people with the health of the ecosystem. In this study, we evaluated wood provisioning in newly established national parks in Okinawa Main Island, Japan, for future sustainable management. We clarified the spatial distribution between the forest stand volume obtained from LiDAR data, the logging sites before the national park designation, and national park zoning. We found that the buffer zone contains some forests with high stand volume that continue from the core area. There had not been much logging in recent years, but most logging sites were located in the buffer zone and within 200m from roads. Forests with aged stands and high stand volume are important as buffers to prevent isolation of the core area. Therefore, park managers need to consider not only the legal regulations for each zone but also the continuity with the surrounding natural environment to prevent isolation of the core area. Understanding the spatial distribution of wood resources and park zoning relationships at a fine-scale resolution will be useful for managing buffer zones where there is competition between conservation and resource use.
在人类从森林生态系统中获取的生态系统服务中，木材资源是对人类生活至关重要的基本服务之一。由于木材资源的使用会扰乱生态系统，过度采伐会破坏当地生态系统，导致生态系统服务功能下降。因此，有必要在人类对木材资源的利用与生态系统健康之间寻求平衡。在本研究中，我们对日本冲绳本岛新设立的国家公园中的木材供应情况进行了评估，以实现未来的可持续管理。我们明确了从激光雷达数据获取的林分蓄积量、国家公园指定前的采伐地点以及国家公园分区之间的空间分布。我们发现缓冲区包含一些林分蓄积量较高的森林，这些森林从核心区域延续而来。近年来采伐活动不多，但大多数采伐地点位于缓冲区以及距道路200米范围内。老龄林分和高蓄积量的森林作为防止核心区域隔离的缓冲区非常重要。因此，公园管理者不仅需要考虑各区域的法律法规，还需要考虑与周边自然环境的连续性，以防止核心区域隔离。在精细尺度分辨率下了解木材资源的空间分布与公园分区关系，将有助于管理保护与资源利用存在竞争的缓冲区。
