Korean Journal of Ecology and Environment (생태와환경)

The Korean Society of Limnology (한국수생태학회)
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Cellular Automaton Models Revealing Effects of Initial Bacterial Distribution on Biofilm Growth

생물막 성장에 대한 세균의 초기 분포영향을 나타내는 셀룰라오토마톤 모델

  • Lee, Sang-Hee (Department of Physics, Pusan National University) ;
  • Choi, Kyung-Hee (Division of Biological Sciences, Pusan National University) ;
  • Chon, Tae-Soo (Division of Biological Sciences, Pusan National University)
  • Published : 2004.09.30
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Abstract

Two dimensional cellular automaton (CA) models were developed to investigate growth of biofilms in aquatic ecosystems. Simple local rules on CA were applied to governing growth of bacterial populations in relation to different nutrient concentrations. Initial bacterial distribution played an important role in determining population size and morphology of biofilm at low concentrations of nutrition. With clumped distribution, population size increased slowly compared with uniform and random distributions, while the porosity tented to be higher with uniform distribution compared with other initial distributions.

수서 생태계에서 생물막 성장을 고찰하기 위해 2차원 셀룰라오토마톤 (CA) 모델을 구현하였다. 영양물 농도와 연계하여 CA의 단순한 지역 규칙을 세균 개체군의 성장을 나타내는데 적용하였다. 초기 세균 분포는 낮은 영양물 농도에서 개체군 크기와 생물막 형태를 결정하는데 중요한 역할을 하였다. 집중분포에서는 균일분포나 마구잡이분포에 비해 개체군 크기가 느리게 증가하였다. 반면 공극률은 다른 초기 분포에 비해 균일분포에서 높게 나타나는 경향을 보였다.

Keywords

References

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