Seasonal Fluctuation of Dissolved Organic Matters in Lake Nakanuma
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概要
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Seasonal fluctuation of dissolved organic matter and chlorophyll-<I>a</I> was measured in Lake Nakanuma, a small eutrophic lake in Ibaragi Prefecture during the period from spring turnover to summer stratification. The maximum concentrations of dissolved organic carbon (DOC) and dissolved carbohydrates (DCHO) were observed four and two weeks after that of chlorophyll-<I>a</I>, respectively. Dissolved organic matters rich in amino acids were accumulated in deep water under anaerobic conditions. Throughout the experimental period, only about 20% of DOC could be attributed to DCHO and DAA carbon, but a larger fraction remained to be identified.
- 日本陸水学会の論文
日本陸水学会 | 論文
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