有明海奥部干潟域における脱窒菌群の生息分布と底質環境について Relations between Habitat Distribution of Denitrifying Bacteria and Sediment Environment in the Tidal Flat of the Interior Parts of the Ariake Sea
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Relations between habitat distribution of denitrifying bacteria and sediment environment in the tidal flat of the interior parts of the Ariake Sea were discussed based on the data of in situ measurements and experiments. It was cleared that the number of denitrifying bacteria in the surface layer of tidal sediment specially in summer was increased with mud content that had close relations to oxidation-reduction potential and organic matter content, and vertical profiles of the number of denitrifying bacteria in the muddy sediment (0-10cm depth) were affected with those of oxidation-reduction potential that controlled the distribution of oxidized and reduced layers there. It was considered that seasonal variations of NO<SUB>2</SUB><SUP>-</SUP> and NO<SUB>3</SUB><SUP>-</SUP>concentrations in the porewater of sediment were influenced by those of denitrifying action.
- PROCEEDINGS OF COASTAL ENGINEERING, JSCE
PROCEEDINGS OF COASTAL ENGINEERING, JSCE (54), 1126-1130, 2007
Japan Society of Civil Engineers