Korean Journal of Soil Science and Fertilizer (한국토양비료학회지)

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

경남지역 논 토양 토성에 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

The present study evaluated the soil microbial communities by fatty acid methyl ester (FAME) method in paddy soils at 11 sites for silt loam, 4 sites for sandy loam, and 5 sites for loam in Gyeongnam Province. The FAME content of fungi in loam ($76nmol\;g^{-1}$) was higher than that of in sandy loam ($45nmol\;g^{-1}$). Sandy loam had significantly lower ratio of cy19:0 to 18:$1{\omega}7c$ compared with that of silt loam (p<0.05), indicating that microbial stress decreased. In addition, actinomycetes community of loam was higher than that of sandy loam.

경남지역 논 토양의 미사질양토 11개소, 사양토 4개소, 양토 5개소를 선정하여 FAME 분석기법을 적용하여 미생물군집을 분석하였다. 곰팡이 지방산 함량은 양토가 $76nmol\;g^{-1}$로서 사양토 $45nmol\;g^{-1}$에 비해 유의적으로 많았다 (p<0.05). 토양 양이온 치환용량은 미사질양토가 $14.7cmol_c\;kg^{-1}$으로 사양토 $11.8cmol_c\;kg^{-1}$보다 유의적으로 높았다(p<0.05). cy19:0과 18:$1{\omega}7c$ 비율은 미사질양토가 0.77로 사양토 0.47 보다 유의적으로 높았다 (p<0.05). 방선균 군집은 양토가 1.34%로 사양토의 0.92%에 비해 유의적으로 많았다 (p<0.05).

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