국내 정주지 온실가스 인벤토리 산정을 위한 활동자료 구축 방법 개발 및 시범 적용 연구: 인천 서구를 중심으로

Abstract

Measurement of greenhouse gas mitigation is important to developing a National Inventory Report (NIR). However, greenhouse gas inventory has not been conducted for settlement categories, including Land Use, Land Use Change, and Forestry sector (LULUCF), due to the lack of an established methodology. Therefore, this study focused on applying the crown cover method from the Intergovernmental Panel on Climate Change (IPCC)’s Guideline to improve greenhouse gas inventory levels of Tier 2 settlements. Activity data based on crown cover were collected from ortho-images in 2010 and 2017 through supervised classification; these data were classified as the settlement remaining settlement, forest converted to settlement, and the cropland converted to settlement. Estimated crown cover was 493.70, 93.45, and 190.34 ha in 2010, and 656.80, 34.40, and 139.10 ha in 2017 (23.31 ha yr-1, -8.0 ha yr-1, and 7.32 ha yr-1), respectively. CO2 absorption was calculated as total 247.92 tCO2 yr-1, -456.93 tCO2 yr-1, and -257.30 tCO2 yr-1, respectively. These results had 2.20 - 34.48% variation compared with other studies based on modeling and field surveys. Based on this study, clear spatial definition for settlement is required and activity data, such as national statistics for urban forests, emission factors, and allometric functions using crown cover, should be established.