원문정보
초록
영어
The purpose of this study was to quantify annual carbon sequestration by urban forests in Seoul, and to suggest desirable planning strategies to improve the carbon sequestration. A total of 155 sites were selected through a systematic random sampling method to survey horizontal and vertical structures of urban forests. Density and cover of trees planted averaged approximately 22.4 tree/100 m2 and 50.1% for parks, and only 5.8 tree/100 m2 and 12.1% for streets, respectively. Trees with dbh of below 30 cm accounted for about 80% of all trees sampled, as represented by a young, growing tree population. Annual carbon sequestration by urban forests averaged approximately 3.9 t/ha/yr. Total annual carbon sequestration were about 117,382 t/ha/yr. Urban forests annually offset carbon emissions by 7% against annual consumption of household electricity in Seoul. Thus, urban forests played an significant role in reducing atmospheric carbon concentration. The role of carbon sequestration could be improved through better planning of urban forests. This study suggested desirable planning strategies including multi-layered and multi-aged tree planting, minimization of extensive grass area, and full planting in available growing spaces.