탄소 공간지도에 기반한 산림생태계의 이산화탄소흡수량 잠재력 분석

초록

This study aimed to analyze the carbon sequestration potential of forest ecosystems, which served as important carbon sinks, and thus to create a carbon spatial map. The research was implemented at national scale and local scales including provinces, cities, counties, and districts. After calculating the areas of coniferous forests, non-coniferous forests, mixed forests, evergreen broad-leaved forests, and bamboo forests, we applied the carbon sink coefficient of each vegetation type and calculated the amount of carbon sink at local and national levels. The results showed that the entire forest land absorbed about 56,352,485t CO2/yr in 2010, 55,391,298t CO2/yr in 2015, and 52,633,417t CO2/yr in 2020, declining over time. The decline in forest area was a major reason for the decline. The changes in the species composition of each vegetation could partially contribute to the decline. We also obtained the carbon absorptions for evergreen broad-leaved forests (about 55,928 t CO2/yr) and bamboo forests (about 591,183.4 t CO2/yr). At the local government scale, we found that cities, counties, and districts including the Taebaek Mountains and Sobaek Mountains had higher carbon sinks than others, and large cities had relatively lower carbon sinks. In conclusion, it is necessary to upgrade the calculation system in the management of the forest ecosystem as a carbon sink to achieve carbon neutrality in Korea. Considering that the most important factor in reducing carbon absorption is the reduction of forest area, the establishment and implementation of active restoration policies to restore forest area are required, and sustainable management for conservation and expansion of vegetation with high carbon absorption such as bamboo forests. In particular, in order to recover the forest ecosystem, it is urgent to develop area-based forest management plans at the local government level and watershed-based integrated forest management policy and implementation plans at the regional level.

키워드