Atmosphere (대기)

Korean Meteorological Society (한국기상학회)
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Analysis of Monoterpene Concentration Characteristics and Development of an Empirical Formula for Monoterpene in the Mixed Forest of the National Center for Forest Therapy

국립산림치유원 혼효림에서의 모노테르펜 농도 특성 분석 및 추정식 개발

  • Hyo-Jung Lee (Korea Forest Welfare Institute Forest Welfare Research Center) ;
  • Young-Hee Lee (Department of Atmospheric Sciences, Kyungpook National University)
  • 이효정 (한국산림복지진흥원 산림복지연구개발센터) ;
  • 이영희 (경북대학교 대기과학과)
  • Received : 2024.03.21
  • Accepted : 2024.05.04
  • Published : 2024.05.31
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Abstract

We analyzed the observed characteristics of monoterpene and developed an empirical formula for monoterpene concentration in the pine-dominated mixed forest of the National Center for Forest Therapy. Monoterpene was measured at 0800, 1200 and 1700 LST once a month using sorbent tube sampling coupled with thermal desorption gas chromatography and mass spectrometry. Monoterpene concentration is low in winter and shows a maximum in June and July. The major components of monoterpene are alpha-pinene, camphene and beta-pinene. During the warm period from May to November, monoterpene concentration is higher at 0800 and 1700 LST than at 1200 LST. The empirical formula takes into account the vegetation variables, temperature-controlled emission, oxidation processes and dilution by wind. The vegetation variable accounts for the difference in observed monoterpene concentration between two sites. The observed monoterpene concentration normalized by the vegetation variable increases exponentially with air temperature. The oxidation process explains the lower monoterpene concentration at 1200 LST than at 0800 and 1700 LST during the warm period. The monoterpene estimates using the empirical formula shows a correlation of 0.52 with the observation for the development period (2018~2020), while it shows a correlation of 0.72 for the validation year (2021). Such higher correlation for the validation year than for the development period is due to the fact that variability of monoterpene concentration is better explained by air temperature in 2021 than in the development period. However, the developed formula underestimates the monoterpene concentration in May and June, showing the limitation in accurately capturing the monthly variation of monoterpene.

Keywords

Acknowledgement

우선 본 논문의 개선을 위해 좋은 의견을 제시해주신 두 분 심사위원께 감사드립니다. 본 연구는 산림청(한국임업진흥원) 산림과학 기술연구 개발사업(2021382B10-2221-0101)의 지원으로 수행되었습니다.

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