融雪期のコムケ湖干潟における溶存有機物と栄養塩の分布・変動特性 [in Japanese] DISTRIBUTION AND VARIATION OF DISSOLVED ORGANIC MATTER AND NUTRIENT IN SNOWMELT SEASON IN TIDALFLAT IN LAKE KOMUKE [in Japanese]
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Dissolved organic matter was measured by using Fluorescence Spectroscopy (FS) along with salinity from snowmelt season to summer at a tidal flat in Lake Komuke at the northeast of Hokkaido. Seasonalities of dissolved nitrogen and phosphorus concentrations were also examined to clarify the dynamics of nitrogen and phosphorus in sediment-water interfaces. Salinity decreases during the snowmelt season, and FS revealed that fulvic acid-like and humic acid-like fluorescence intensities were higher in sediment pore water than in surface water especially in tidepool due to accumulation of organic matter production. It is likely that NH<sub>4-</sub>N and PO<sub>4-</sub>P concentrations in surface sediment were mainly affected by redox condition change triggered by tidal action and infiltration flow in shore side.
- Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)
Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 72(4), I_661-I_666, 2016
Japan Society of Civil Engineers