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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
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This study was conducted to find out the methodology of carbon budget assessment among soil, atmosphere and plant. Soil respiration, net ecosystem productivity of herbs and net ecosystem productivity of woody plants have been measured in 30 years old pear orchard at Naju.
Closed Dynamic Chamber (CDC) method was used to measure soil respiration and net ecosystem productivity of herbs. Net ecosystem productivity of woody plant (pear) was determined by eddy covariance method using the EddyPro (5.2.1) program. As for soil respiration, 429.1 mg CO2 m-2 h-1 was released to atmosphere and sensitivity of soil temperature (Q10) was 2.3. In case of herbs, respiration was superior to photosynthesis during measurement period. From 20 to 24 Jun 2015, the sum of absorbed and released CO2 by herb’s photosynthesis and respiration was 156.1 mg CO2 m-2 h-1. Woody plants showed the 680.1 mg CO2 m-2 h-1 of absorption by photosynthesis. In a farm scale, the sum of soil respiration, and net ecosystem productivity of herbs and woody plants was 0.04 ton CO2 ha-1 during the measurement period, and it showed that pear orchard act as a CO2 sink. This study using various approaches is expected to present a methodology for evaluating the carbon budget of perennial woody crop plantations.
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참고문헌 (22)
참고문헌 신청
Baldocchi D. / 2001 / FLUXNET : A new tool to study the temporal and spatial variability of ecosystem-scale carbon dioxide, water vapor, and energy flux densities / J. Clim 8
Baldocchi D. / 2008 / Breathing of the terrestrial biosphere : Lessons learned from a global network of carbon dioxide flux measurement systems / Aust. J. Bot 56 : 1 ~ 26
Bekku Y. / 1995 / Measurement of soil respiration using closed chamber method : An IRGA technique / Ecol. Res 10 : 369 ~ 373
Bond-Lamberty B. / 2004 / Contribution of root respiration to soil surface CO2 flux in a boreal black spruce chronosequence / Tree Physiol 24 : 1387 ~ 1395
Falge E. / 2002 / Seasonality of ecosystem respiration and gross primary production as derived from FLUXNET measurements / J. Agricul. Meteorol 113 : 53 ~ 74
Baldocchi D. / 2008 / Breathing of the terrestrial biosphere : Lessons learned from a global network of carbon dioxide flux measurement systems / Aust. J. Bot 56 : 1 ~ 26
Bekku Y. / 1995 / Measurement of soil respiration using closed chamber method : An IRGA technique / Ecol. Res 10 : 369 ~ 373
Bond-Lamberty B. / 2004 / Contribution of root respiration to soil surface CO2 flux in a boreal black spruce chronosequence / Tree Physiol 24 : 1387 ~ 1395
Falge E. / 2002 / Seasonality of ecosystem respiration and gross primary production as derived from FLUXNET measurements / J. Agricul. Meteorol 113 : 53 ~ 74
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