Korean Journal of Soil Science and Fertilizer (한국토양비료학회지)

Korean Society of Soil Science and Fertilizer (한국토양비료학회)
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Assessment of N2O Emission Factor of Autumn Chinese Cabbage Fields at Three Different Geographical Location in South Korea

  • Kim, Gun-Yeob (National Academy of Agricultural Science, Rural Development Administration) ;
  • Park, Woo-Kyun (National Academy of Agricultural Science, Rural Development Administration) ;
  • Jeong, Hyun-Cheol (National Academy of Agricultural Science, Rural Development Administration) ;
  • Lee, Sun-il (National Academy of Agricultural Science, Rural Development Administration) ;
  • Kim, Pil-Joo (Gyeongsang National University) ;
  • Seo, Young-Ho (Gangwondo Agricultural Research and Extension Services) ;
  • Na, Un-sung (National Academy of Agricultural Science, Rural Development Administration)
  • Received : 2015.06.09
  • Accepted : 2015.06.19
  • Published : 2015.06.30
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Abstract

The level of nitrous oxide ($N_2O$), a long-lived greenhouse gas, in atmosphere has increased mainly due to anthropogenic sources, especially application of nitrogen fertilizers. Quantifying $N_2O$ emission in the agricultural field is essential to develop national inventories of greenhouse gases (GHGs) emission. The objective of this study was to develop an emission factor to estimate the direct $N_2O$ emission from an agricultural field cultivated with the Chinese cabbage during autumn season in 2010-2012. Emission factor of $N_2O$ calculated over three years experiment using accumulated $N_2O$ emission, nitrogen fertilization rate, and background $N_2O$ emission was $0.0058{\pm}0.00254kg\;N_2O-N\;kg^{-1}\;N$. More extensive studies need to be conducted to develop $N_2O$ emission factors for other upland crops in the various regions of Korea because $N_2O$ emission is influenced by many factors including climate characteristics, soil properties, and agricultural practices as well as crop species.

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References

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