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Full-Text Articles in Life Sciences
Carbon Cycling In A Tidal Freshwater Marsh Ecosystem: A Carbon Gas Flux Study, Sc Neubauer, Wd Miller, Iris C. Anderson
Carbon Cycling In A Tidal Freshwater Marsh Ecosystem: A Carbon Gas Flux Study, Sc Neubauer, Wd Miller, Iris C. Anderson
VIMS Articles
A process-based carbon gas flux model was developed to calculate total macrophyte and microalgal production, and community and belowground respiration, for a Peltandra virginica dominated tidal freshwater marsh in Virginia. The model was based on measured field fluxes of CO2 and CH,, scaled to monthly and annual rates using empirically derived photosynthesis versus irradiance, and respiration versus temperature relationships. Because the gas exchange technique measures whole system gas fluxes and therefore includes turnover and seasonal translocation, estimates of total macrophyte production will be more accurate than those calculated from biomass harvests. One Limitation of the gas flux method is that …