산림-대기 간 자연적휘발성유기화합물 관측 기법에 따른 교환량 비교
Comparison of BVOC Fluxes between Forest and Atmosphere with Different Estimation Methods
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초록
Monitoring the flux of BVOCs (Biogenic volatile organic compounds) between the atmosphere and forestis necessary to study global climate change and regional air quality. BVOCs play an important role in the formationof photochemical oxidant, and they are routinely emitted by plants into the atmospheric environment. For this reason, the National Environmental Research Institute (NIER) has constructed an air quality monitoringtower in Mt. Thaehwa. In this study, we measured BVOC flux from forest using a enclosure chambersystem and a REA (Relaxed Eddy Accumulation) system. It was found that monoterpene (90%) was emittedfrom Pinus koraiensis, and isoprene (87%) was emitted from Quercus variabilis. Also, major monoterpenesof Pinus koraiensis were a-pinene (44%) and 3-carene (17%). Isoprene was detected by the REA system at20 m hight of the tower. As toluene emission is more similar to monoterpene emission, it can be assumed thattoluene was emitted from trees when they are stressed. Finally, isoprene was mainly detected by the REA systemin Mt. Thaehwa.
Abstract
Monitoring the flux of BVOCs (Biogenic volatile organic compounds) between the atmosphere and forestis necessary to study global climate change and regional air quality. BVOCs play an important role in the formationof photochemical oxidant, and they are routinely emitted by plants into the atmospheric environment. For this reason, the National Environmental Research Institute (NIER) has constructed an air quality monitoringtower in Mt. Thaehwa. In this study, we measured BVOC flux from forest using a enclosure chambersystem and a REA (Relaxed Eddy Accumulation) system. It was found that monoterpene (90%) was emittedfrom Pinus koraiensis, and isoprene (87%) was emitted from Quercus variabilis. Also, major monoterpenesof Pinus koraiensis were a-pinene (44%) and 3-carene (17%). Isoprene was detected by the REA system at20 m hight of the tower. As toluene emission is more similar to monoterpene emission, it can be assumed thattoluene was emitted from trees when they are stressed. Finally, isoprene was mainly detected by the REA systemin Mt. Thaehwa.
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