Korean Journal of Environmental Agriculture (한국환경농학회지)

The Korean Society of Environmental Agriculture (한국환경농학회)
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Establishment of Baseline Emission Factor of Methane in Korean Rice Paddy Soil

국내 벼 논에서 메탄 기본배출계수 개발

  • Kim, Gun-Yeob (National Academy of Agricultural Science, RDA) ;
  • Jeong, Hyun-Cheol (National Academy of Agricultural Science, RDA) ;
  • Ju, Ok-Jung (Gyeonggido Agricultural Research and Extension Services) ;
  • Kim, Hee-Kwon (Jeollanamdo Agricultural Research and Extension Services) ;
  • Park, Jun-Hong (Gyeongsangbukdo Agricultural Research and Extension Services) ;
  • Gwon, Hyo-Suk (Division of Applied Life Science, Gyeongsang National University) ;
  • Kim, Pil-Joo (Division of Applied Life Science, Gyeongsang National University)
  • Received : 2013.11.09
  • Accepted : 2013.11.15
  • Published : 2013.12.31
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Abstract

BACKGROUND: Methane ($CH_4$) emission is calculated using the default $CH_4$ emission factor as recommended by the International Panel on Climate Change(IPCC guidelines). However, the default emission factor has been derived using including the data from other countries having different soil and environmental conditions and may not reflect the real $CH_4$ emission rates in Korea. The objective of this study was to estimate the baseline emission factor of $CH_4$ in Korean paddy soils during rice cultivation. METHODS AND RESULTS: Methane emission patterns were characterized in four different paddy soils across country for a consecutive 3 years during the rice cultivation period. Rice plants were cultivated under continuous flooding and fertilized using the recommended chemical fertilization in Korea ($N-P_2O_5-K_2O$=90-45-57kg/ha). The mean $CH_4$ emission rate was 2.32 kg $CH_4$/ha/day and the uncertainty of the investigated data was 21.7%, with a valuable error range at 1.82-2.82 kg $CH_4$/ha/day with a 95% confidence interval. CONCLUSION(S): Conclusively, the Korean paddy soils' baseline emission factor of $CH_4$ is approximately 2.32 kg $CH_4$/ha/day and can be used to estimate the $CH_4$ emissions more exactly.

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References

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