Effect of primary producer on the CO2 balance of an artificial tidal flat constructed in urban coastal area

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K18145
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Civil and environmental engineering
• Research Institution: Osaka City University
• Principal Investigator: Endo Toru 大阪市立大学, 大学院工学研究科, 講師 (00527773)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: ブルーカーボン / 人工干潟 / 底生微細藻類 / 植物プランクトン / CO2フラックス / 総生産

Outline of Final Research Achievements

It is important to grasp the contribution of primary producers in carbon dynamics to utilize the blue carbon function in urban coastal areas. The purpose of this study was to clarify the CO2 balance between air and the intertidal flat or sea, and to estimate the contribution of phytoplankton in the carbon dynamics of an artificial tidal flat constructed in urban coastal zone.
The observation data of air-sea and air-intertidal flat CO2 fluxes suggested that the tidal flat played as a CO2 sink in all season and the effects was greatly affected by benthic microalgae. On the other hand, the contribution of phytoplankton in carbon dynamics in seawater was estimated to be about 10 to 30%.

Free Research Field

水圏環境工学