The standard emission rate(ERs) of isoprene was quantitatively measured in situ from Quercus mongolica Fischer that dominates more than about 85% of domestic oak trees. The ERs values in spring and summer were similar to 64.4 and 58.1 (㎍C/gdw/hr), respectively. The ERs in autumn, 7.06(㎍C/gdw/hr), was about 8～9 times lower than those in spring and summer. The coefficient of determination (r2) between ERs and CL․CT ranged from 0.593 to 0.836. The correlation coefficients between the ERs and PAR, the ER and temperature suggested that ERs have strong correlation with PAR(photosynthetically active radiation) and temperature. In addition, the high values of PAR, temperature, and ERs were found in the time zone of 15:00 ～17:00(spring), 15:00 ～ 16:00(summer), and 14:00 ～ 15:00(autumn).

• 조규탁(한국환경기술진흥원) | Kyu Tak Cho
• 선우영(건국대학교 환경공학과) | Young Sunwoo
• 손윤석(건국대학교 환경공학과) | Youn Suk Son
• 임용재(국립환경과학원 대기환경과) | Yong Jae Lim
• 김조천(건국대학교 환경공학과) | Jo Chun Kim Corresponding Author
• 김기준(건국대학교 환경공학과) | Ki Joon Kim