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자료유형
학술저널
저자정보
김득수 (군산대학교)
저널정보
한국대기환경학회 한국대기환경학회지(국문) 한국대기환경학회지 제30권 제6호
발행연도
2014.12
수록면
531 - 537 (7page)

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Terrestrial vegetation has been known as a main source of biogenic volatile organic compounds (BVOCs). Isoprene and monoterpene among the BVOCs are most abundant species emitted by forests, and have a significant impact on atmospheric chemistry. Abundancy of these species could lead to an increase or decrease in the production of natural tropospheric ozone in forests, depending on the nitric oxide (NO) concentration. Soil is the most significant source of natural NO. Understanding of NO emission from forest soil could be critical in evaluation of air quality in the forest area. Flux-gradient similarity theory (FGST) was applied for practical use to estimate forest soil NO emission at Mt. Taewha where is available micro-meteorological data near surface monitoring from flux tower. NO fluxes calculated by FGST were compared to flux results by flow-through dynamic chamber (FDC) measurement. Surface NO emission trends were shown between two different techniques, however their magnitudes were found to be different. NO emissions measured from FDC technique were relatively higher than those from theoretical results. Daily mean NO emissions resulted from FGST during Aug. 13, 14 and 15 were 0.28±8.45, 2.17±15.55, and -3.18± 13.65 ?gm-2 hr-1, respectively, while results from FDC were 2.26±1.44, 5.11±3.85, and 2.23±6.45 ?gm-2 hr-1. Trends of daily means were shown in similar pattern, which NO emissions were increasing during late afternoon (r2=0.04). These emission trends could be because soil temperature and moisture influence importantly soil microbiology.

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Abstract
1. 서론
2. 연구내용 및 방법
3. 연구결과 및 논의
4. 요약 및 결론
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UCI(KEPA) : I410-ECN-0101-2016-539-000970235