미생물학회지 (Korean Journal of Microbiology)
- 제24권3호
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- Pages.308-316
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- 1986
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- 0440-2413(pISSN)
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- 2383-9902(eISSN)
금강 하구 퇴적토의 이화학적 성질과 종속영양세균의 분포에 관하여
Distribution of heterotrophic bacteria and physico-chemical characteristics of sediments in Kum river estuary
초록
Vertical distribution of heterotrophic bacteria and physico-chemical characteristics were measuted in Kum River estuarine sediments. And interrelationship between heterotrophic bacterka and environmental factors was also studied. The type of sediment of Site 1 was silty clay, and sand at Site 2. Annual pH ranges were between 7.1 and 7.7 in the clay type sediment (Site 1) and 6.9-7.2 in the sand type sediment (Site 2). It was shown that organic matter contents were higher in the clay type sediment than those of sand type sediment. Redox potential values of sediments were decreased rapidly with depth at Site 1, but those of Sete 2 showed vertical fluctuation. Nitrogens(ammonia+amino acid-N, nitrate-N, nitrite-N) and phosphate in the clay type sediment showed higher values than those of sand type sediment. Annual distribution of heterotrophic bacteria were ranged