초록 ▼

I. 서론
IPCC 보고서에 따르면 오존과 CO₂는 지구온도를 상승하는데 주요한 기여를 하는 물질로 알려져 있다(IPCC, 2007).

오존은 바람이 거의 없는 상태에서 강한 햇빛이 존재할 경우 자동차나 공장 등에서 배출되는 휘발성유기화합물(Volatile Organic Compounds: 이하 VOC)과 질소산화물(Nitrogen Oxides: 이하 NOx)의 반응에 의해서 주로 생성된다(Chameides et al., 1992; Fehsenfeld et al., 1992).

(출

I. 서론
IPCC 보고서에 따르면 오존과 CO₂는 지구온도를 상승하는데 주요한 기여를 하는 물질로 알려져 있다(IPCC, 2007).

오존은 바람이 거의 없는 상태에서 강한 햇빛이 존재할 경우 자동차나 공장 등에서 배출되는 휘발성유기화합물(Volatile Organic Compounds: 이하 VOC)과 질소산화물(Nitrogen Oxides: 이하 NOx)의 반응에 의해서 주로 생성된다(Chameides et al., 1992; Fehsenfeld et al., 1992).

(출처 : 본문 I. 서론 6p)

Abstract ▼

Monitoring the flux of CO₂ and BVOCs (natural volatile organic compounds) between the atmosphere and forest is necessary to study global climate change and regional air quality. For this reason, the National Environmental Research Institute (NIER) built an air quality monitoring tower in

Monitoring the flux of CO₂ and BVOCs (natural volatile organic compounds) between the atmosphere and forest is necessary to study global climate change and regional air quality. For this reason, the National Environmental Research Institute (NIER) built an air quality monitoring tower in Thaewae Mt. (Gangju, Kyeonggi, Korea) and established air quality monitoring system and flux monitoring system.

The observed CO₂ fluxes between the atmosphere and forest suggested that during the day, CO₂ is absorbed by plants thanks to photosynthesis and released during the night.

It was also found that the more the amount of net radiation is, greater influx between the atmosphere and forest. Further more, It was confirmed that when net radiation decreases, influx between them changes.

Using PTR-MS, the concentration distribution of BVOCs and AVOCs in the forest were measured by height. The result showed that Monoterpene and Isoprene steadily appear indicating that it is mostly generated in forest, and diffused into the atmosphere. Given that the characteristics of Toluene emission is more similar to that of Monoterpene than Benzene, it can be assumed that Toluene, mostly emitted from trees, is diffused in the air.

According to the measurements of BVOCs flux using REA system, Isoprene and Monoterpene are emitted from trees during the day thanks to meteorological factors like sunshine and temperature.

(출처 : Abstract 5p)

목차 Contents

• 표지 ... 1
• 목차 ... 2
• 표목차 ... 3
• 그림목차 ... 4
• Abstract ... 5
• Ⅰ. 서론 ... 6
• Ⅱ. 연구내용 및 방법 ... 8
• 1. 측정지점 ... 8
• 2. 대기관측타워 측정시스템 ... 9
• 3. 대기-산림간 물질교환량 관측 ... 14
• 4. Enclosure chamber 구축 ... 20
• Ⅲ. 연구결과 및 고찰 ... 22
• 1. CO2 및 BVOC 플럭스 품질관리 ... 22
• 2. 산림지역 기상 분석 ... 27
• 3. 대기-산림간 CO2 및 BVOC 교환량 ... 28
• 4. BVOC 배출특성 ... 35
• Ⅳ. 결론 ... 37
• 참고문헌 ... 39
• 끝페이지 ... 43