Inter-annual variability of CO2 exchanges between an emersed tidal flat and the atmosphere

Carbon dioxide (CO2) exchanges between a tidal flat (Wadden Sea, Netherlands) and the atmosphere were measured during a three-year survey. CO2 exchanges were monitored during 1-2 days each month between September 2006 and September 2009 using a flux chamber. The flux of CO2 was separated into two fluxes: the dark flux and the gross light flux, with the dark flux representing the flux during darkness and the gross light flux the difference between the net CO2 flux (measured under light) and the dark flux. It was argued that dark and light fluxes may deviate from respiration and photosynthesis,... Mehr ...