지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2012.12
- 수록면
- 1,179 - 1,186 (8page)
이용수
초록· 키워드
오류제보하기
For better understanding of carbon cycle dynamics of an agro-ecosystem, an accurate assessment of seasonal and daily CO<sub>2</sub> flux is essential to understand the relationship between various environmental factors and crop productivity. We developed the automatic sliding canopy chamber (ASCC) system that measured continuous net ecosystem productivity (NEP) over whole growing season under the natural meteorological rhythm. The ASCC was composed of two main parts which were sliding part for measuring NEP, and automatic opening and closing chamber (AOCC) for measuring soil respiration (SR) on the soil surface. The ASCC was developed by using open flow method for measuring soil CO<sub>2</sub> efflux. The disturbance of natural meteorological condition was minimized by opening the base frames. In the field test with barley (Hordeum vulgare L.), NEP was calculated at 140 mg CO<sub>2</sub> m<sup>-2</sup> h<sup>-1</sup> on a clear day using continuous data and eliminated the possibility of overestimate about 16% using one hour data during the day time. Unlike other small scale chamber system, installation on cropping-field made it possible to take any modifications which might be caused by natural environmental condition.
목차
Introduction
Materials and methods
Results and discussion
References
참고문헌 (19)
참고문헌 신청
1. [학술지(정기간행물)] - Baldocchi, D.D. / 1988 / Measuring biosphere-atmosphere exchanges of biologically related gases with micrometeorological methods / Ecology 69 : 1331 ~ 1340
2. [학술지(정기간행물)] - Edwards, N.T. / 2003 / Automated monitoring of soil respiration: A moving chamber design / Soil Sci. Soc. Am. J 67 : 1266 ~ 1271
3. [학술지(정기간행물)] - Garrity, D.P. / 1984 / Rapidly determining sorghum canopy photosynthetic rates with a mobile field chamber / Agron. J 76 : 163 ~ 165
4. [학술지(정기간행물)] - Greer, D.H. / 1995 / Effect of daily photon receipt on the susceptibility of dwarf bean (Phaseolus vulgaris L.) leaves to photoinhibition of photosynthesis / Planta 197 : 31 ~
5. [학술지(정기간행물)] - Held, A.A. / 1990 / Bowen ratio/energy balance technique for estimating crop net CO2 assimilation, and comparison with a canopy chamber / Theor. Appl. Climatol 42 : 203 ~ 213
2. [학술지(정기간행물)] - Edwards, N.T. / 2003 / Automated monitoring of soil respiration: A moving chamber design / Soil Sci. Soc. Am. J 67 : 1266 ~ 1271
3. [학술지(정기간행물)] - Garrity, D.P. / 1984 / Rapidly determining sorghum canopy photosynthetic rates with a mobile field chamber / Agron. J 76 : 163 ~ 165
4. [학술지(정기간행물)] - Greer, D.H. / 1995 / Effect of daily photon receipt on the susceptibility of dwarf bean (Phaseolus vulgaris L.) leaves to photoinhibition of photosynthesis / Planta 197 : 31 ~
5. [학술지(정기간행물)] - Held, A.A. / 1990 / Bowen ratio/energy balance technique for estimating crop net CO2 assimilation, and comparison with a canopy chamber / Theor. Appl. Climatol 42 : 203 ~ 213
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UCI(KEPA) : I410-ECN-0101-2014-520-003119335