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Variations in Monoterpene Emissions from Pinus densiflora in Simwon Village at Jiri Mountain

지리산 심원마을 소나무의 Monoterpene 방산 농도 변화

  • Park, Mi-Jin (Division of Wood Chemistry, National Institute of Forest Science) ;
  • Choi, Won-Sil (National Instrumentation Center for Environmental Management, Seoul National University) ;
  • Cho, Minseok (National Instrumentation Center for Environmental Management, Seoul National University) ;
  • Kim, Juwan (National Instrumentation Center for Environmental Management, Seoul National University) ;
  • Kim, Jaehyeon (National Instrumentation Center for Environmental Management, Seoul National University) ;
  • Lee, Young-Kyu (National Instrumentation Center for Environmental Management, Seoul National University)
  • 박미진 (국립산림과학원 목재이용연구부 목재화학연구과) ;
  • 최원실 (서울대학교 농생명과학공동기기원) ;
  • 조민석 (서울대학교 농생명과학공동기기원) ;
  • 김주완 (서울대학교 농생명과학공동기기원) ;
  • 김재현 (서울대학교 농생명과학공동기기원) ;
  • 이영규 (서울대학교 농생명과학공동기기원)
  • Received : 2020.11.06
  • Accepted : 2021.03.01
  • Published : 2021.03.31

Abstract

In this research, monoterpene emissions were investigated from pine trees(Pinus densiflora) and in the forest air in Simwon village at the Jiri Mountain. Air samples from an enclosed chamber and pine forest air were collected using a Tenax TA Tube five times a day(at 09:00, 11:00, 13:00, 15:00, and 17:00) on 1 day per month from March to November 2014. Selected needles and branches from individual pine trees were enclosed for the measurement of their monoterpene emissions. The concentration and composition of emitted monoterpenes were analyzed in a time series. The major components of monoterpenes emitted from pine trees were α-pinene, β-myrcene, β-phellandrene, and β-pinene. Seasonal data showed that the concentration of monoterpenes emitted from pine trees began increasing in June and reached its peak in August, decreasing thereafter. In addition, seasonal emissions of monoterpenes were dependent on environmental factors such as temperature. The major species of monoterpenes in forest air were α-pinene, β-pinene, and camphene. The concentration of monoterpenes in forest air began rising from March to April and reached its peak in May; multiple peaks subsequently formed in July and November. Diurnal variation in monoterpenes decreased from 09:00-10:00, reaching a low and high at 13:00-14:00 and 17:00-18:00, respectively.

본 연구에서는 2014년 3월부터 11월까지 지리산 심원마을에서 enclosure chamber를 이용하여 소나무 잎과 가지에서 방산되는 monoterpene과 숲 공기 중의 monoterpene의 농도 변화와 물질에 대해서 시계열 분석을 하였다. 소나무 잎과 가지에서 방산되는 주요 monoterpene 물질은 α-pinene, β-myrcene, β-phellandrene, β-pinene으로 나타났다. monoterpene 방산량은 6월부터 증가하기 시작하여 8월에 가장 높은 농도를 나타낸 후 감소하는 경향을 나타냈다. 시간별 monoterpene 방산량은 13:00~14:00, 15:00~16:00, 09:00~10:00 순서로 높게 나타냈고 온도가 증가함에 따라 monoterpene의 농도는 증가하였고 특히 20℃ 이상에서 크게 증가하였다. 한편 숲 공기 중에 존재하는 monoterpene의 농도는 3월, 4월 증가해서 5월 최고점을 나타냈고 7월과 11월에 증가하는 경향을 나타냈다. 숲 공기 중 monoterpene의 주요 물질은 α-pinene, β-pinene, camphene으로 잎과 가지에서 방산되는 monoterpene 물질과 차이가 있었다. 소나무 잎과 가지에서 방산되는 monoterpene 농도는 13:00~14:00, 15:00~16:00 순서로 높게 나타났으며 숲 공기 중에서는 09:00~10:00에 높았던 농도가 감소하면서 13:00~14:00 시간에 가장 낮은 농도를 나타냈으며 17:00~18:00이 가장 높은 농도를 나타냈다.

Keywords

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