유·무인도서의 산림공간분포 현황 및 경관지수를이용한 파편화 분석

Abstract

This study was carried out for the purpose of identifying the status and characteristics of forests distributed on the islands, targeting inhabited and uninhabited islands distributed in Korea, and evaluating island forests using the landscape index. The data for the analysis of forests on inhabited and uninhabited islands in Korea were used using the island forest classification map produced by the National Institute of Forest Sciences. The total number of islands in Korea is 3,949, with 3,454 uninhabited islands and 495 populated islands. Among the uninhabited islands, according to the definition of forests in Korea, there are a total of 1,633 uninhabited and uninhabited islands with forests containing a forest area of 0.5 ha or more, and the distribution of uninhabited islands is about 2.4 times higher. As for the distribution of forest space per island, the average of uninhabited islands was 1.0 and the average of inhabited islands was 9.6, showing a high distribution of forest space (objects) per island. Looking at the spatial characteristics of inhabited and uninhabited islands through the landscape index, the TA(Total Area) of inhabited islands was about 215,000 ha, which was about 37.1 times higher than that of uninhabited islands (about 5.8 thousand ha), and NP(Number of Patches) was 5,646, which was higher than that of uninhabited islands (1,191). 4.7 times higher. The MPS(Mean Patch Size) was 39.1ha, which was about 8.1 times higher than that of the uninhabited islands (4.8ha). Forests on inhabited islands not only had more populations than uninhabited islands, but also had one larger forest area. TE(Total Edge) was about 186,000 km, which was 15.3 times higher than that of uninhabited islands (1.2100 km), AWMSI(Area Weighted Mean Shape Index) was 2.1 times and MSI was 1.3 times higher. Through this study, the characteristics and spatial distribution differences of inhabited and uninhabited islands could be known, and it could be used as basic data for preparing differentiated forest management plans for inhabited and uninhabited islands.