Korean Journal of Soil Science and Fertilizer (한국토양비료학회지)

Korean Society of Soil Science and Fertilizer (한국토양비료학회)
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Impacts of Soil Type on Microbial Community from Paddy Soils in Gyeongnam Province

경남지역 논 토양 유형에 따른 미생물 군집 변화

  • Lee, Young-Han (Gyeongsangnam-do Agricultural Research and Extension Services) ;
  • Ahn, Byung-Koo (Jeollabuk-do Agricultural Research and Extension Services) ;
  • Lee, Seong-Tae (Gyeongsangnam-do Agricultural Research and Extension Services) ;
  • Shin, Min-A (Gyeongsangnam-do Agricultural Research and Extension Services) ;
  • Kim, Eun-Seok (Gyeongsangnam-do Agricultural Research and Extension Services) ;
  • Song, Won-Doo (Gyeongsangnam-do Agricultural Research and Extension Services) ;
  • Sonn, Yeon-Kyu (National Academy of Agricultural Science, RDA)
  • Received : 2011.11.20
  • Accepted : 2011.12.09
  • Published : 2011.12.31
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Abstract

This study evaluated the soil microbial communities by fatty acid methyl ester (FAME) method in soils (6 sites for immatured paddy, 9 sites for normal paddy, and 5 sites for sandy paddy) in Gyeongnam Province. The soil microbial biomass carbon content in normal and sandy paddy were 1,235 and $441mg\;kg^{-1}$, respectively, showing the soil microbial biomass carbon content in normal paddy was higher than that in sandy paddy. The soil organic matter contents $33g\;kg^{-1}$ of immatured and normal paddy were higher than sandy paddy $18g\;kg^{-1}$ (p<0.05). The communities of total bacteria and Gram-negative bacteria in normal paddy were significantly higher than those in sandy paddy (p<0.05). Total bacteria communities should be considered as a potential responsible factor for the obvious microbial community differentiation.

경남지역 논 토양 미숙답 6개소, 보통답 9개소, 사질답 5개소를 대상으로 2011년에 미생물 세포벽 지방산 함량을 분석하여 미생물 군집과 토양 화학성을 주성분분석으로 해석하였다. 토양 미생물체량은 보통답이 $1,235mg\;kg^{-1}$으로 사질답 $441mg\;kg^{-1}$ 보다 유의적으로 많았으며 (p<0.05) 미숙답은 $854mg\;kg^{-1}$으로 유의적인 차이가 없었다. 토양 유기물 함량은 미숙답과 보통답이 $33g\;kg^{-1}$으로 사질답의 $18g\;kg^{-1}$ 보다 유의적으로 많았다 (p<0.05). 미생물 군집은 보통답이 총 세균 33.0%, 그람음성 세균 18.1%로서 사질답의 총 세균 29.4%, 그람음성 세균 14.8% 그리고 미숙답의 그람음성 세균 15.4%에 비해 유의적으로 많았다 (p<0.05). 주성분 분석결과 토양 유기물 함량과 총 세균 군집 비율이 경남지역 논 토양의 보통답과 사질답의 특성을 구분할 수 있었다.

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