Emission rate of monoterpene and isoprene was measured in five commonly growing tree species of conifers(Pinus thunbergii, Abies koreana, Cryptomeria japonica, Pinus densiflora, Chamaecyparis obtusa) at the Halla mountain sites. Dynamic flow enclosure technique was used and gas samples were collected into Tenax tube. The highest and lowest hourly emission rate was observed in Abies koreana (1.86 ㎍/gdw/hr) and Chamaecyparis obtusa (0.52 ㎍/gdw/hr), respectively. The major species of monoterpene from pine trees were α-pinene, β-pinene, β-phellandrene, myrcene. Particularly, d-limonene was abundant in Abies koreana but α-pinene, d 3 -carene and sabinene was in Cryptomeria japonica. Emission rates of isoprene show less significant than those of monoterpene. And also seasonal emission rates of monoterpene were dependent on environmental factors such as temperature.

Abstract
 1. 서 론
 2. 재료 및 방법
  2.1. 실험장치
  2.2. 수종 선정 및 채취 위치
  2.3. 채취방법
  2.4. 분석방법
 3. 결과 및 고찰
  3.1. 침엽수의 monoterpene 및 isoprene 배출속도 비교
  3.2. Monoterpene 배출속도의 계절변동 특성
  3.3. Monoterpene 배출속도의 시간별 변동 특성
  3.4. 잎온도에 따른 monoterpene 배출속도의 변동
  3.5. 침엽수의 monoterpene 성분별 배출속도
 4. 결 론
 참 고 문 헌

• 김형철(제주특별자치도 환경자원연구원) | Hyeong-Cheol Kim (Institute of Environmental Resource Research, Jeju Special Self-Governing Province)
• 이기호(제주대학교 환경공학과) | Ki-Ho Lee (Department of Environmental Engineering, Jeju National University) Corresponding Author