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http://dx.doi.org/10.11626/KJEB.2016.34.4.257

Study on Evaluation of Carbon Emission and Sequestration in Pear Orchard  

Suh, Sanguk (Climate Change & Agroecology Division, National Institute of Agricultural Sciences)
Choi, Eunjung (Climate Change & Agroecology Division, National Institute of Agricultural Sciences)
Jeong, Hyuncheol (Climate Change & Agroecology Division, National Institute of Agricultural Sciences)
Lee, Jongsik (Climate Change & Agroecology Division, National Institute of Agricultural Sciences)
Kim, Gunyeob (Climate Change & Agroecology Division, National Institute of Agricultural Sciences)
Sho, Kyuho (Climate Change & Agroecology Division, National Institute of Agricultural Sciences)
Lee, Jaeseok (College of Bioscience and Biotechnology, Konkuk University)
Publication Information
Korean Journal of Environmental Biology / v.34, no.4, 2016 , pp. 257-263 More about this Journal
Abstract
Objective of this study was to evaluate the carbon budget on 40 years old pear orchard at Naju. For carbon budget assessment, we measured the soil respiration, net ecosystem productivity of herbs, pear biomass and net ecosystem exchange. In 2015, pear orchard released about $25.6ton\;CO_2\;ha^{-1}$ by soil respiration. And $27.9ton\;CO_2\;ha^{-1}$ was sequestrated by biomass growth. Also about $12.6ton\;CO_2\;ha^{-1}$ was stored at pruning branches and about $5.2ton\;CO_2\;ha^{-1}$ for photosynthesis of herbs. As a result, 25.6 ton of $CO_2$ per ha is annually released to atmosphere. At the same time about 45.7 ton of $CO_2$ was sequestrated from atmosphere. When it sum up the amount of $CO_2$ release and sequestration, approximately $20.1ton\;CO_2\;ha^{-1}$ was sequestrated by pear orchard in 2015, and it showed no significant differences with net ecosystem exchanges ($17.8ton\;CO_2\;ha^{-1}\;yr^{-1}$) by eddy covariance method with the same period. Continuous research using various techniques will help the understanding of $CO_2$ dynamics in agroecosystem and it can be able to present a new methodology for assessment of carbon budget in woody crop field. Futhermore, it is expected that the this study can be used as the basic data to be recognized as a carbon sink.
Keywords
soil respiration; net ecosystem productivity; pear orchard; eddy covariance;
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Times Cited By KSCI : 4  (Citation Analysis)
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