潮汐に伴う干潟堆積物からのCO<sub>2</sub>フラックスの変動に関する研究

書誌事項

タイトル別名
  • A Research on the Fluctuation of CO<sub>2</sub> Flux from the Sediment of Tidal Flat in accompanied with Tidal Change
  • 潮汐に伴う干潟堆積物からのCO₂フラックスの変動に関する研究
  • チョウセキ ニ トモナウ ヒガタ タイセキブツ カラ ノ CO ₂ フラックス ノ ヘンドウ ニ カンスル ケンキュウ
  • A Research on the Fluctuation of CO2 Flux from the Sediment of Tidal Flat in accompanied with Tidal Change

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Field surveys and indoor experiments were conducted at the north tidal flat of Osaka Nanko bird sanctuary in 2012 in order to measure the amount of discharge of the carbon dioxide (CO2) which is an index of the amount of organic matter decomposition. The field survey revealed that CO2 flux increased with decrease of the groundwater level when the bottom sediment emerged. The CO2 flux in the submerged period showed 0.2-1.2 mgCO2/m2/min which was less than 1/5 to 1/40 of the emerged period. In addition, the result of field surveys together with indoor experiments suggested that CO2 flux changed depending on the flood tide or falling tide as well as the groundwater level.

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