Modeling Oceanic Primary Production: Photoacclimation and Nutrient Effects on Light-Saturated Photosynthesis

摘要: In this report, we describe a new model (the 'PhotoAcc' model) for estimating changes in the light-saturated rate of chlorophyll-normalized phytoplankton carbon fixation (Pbmax). The is based on measurements conducted during Atlantic Meridional Transect studies and Bermuda Time Series program. PhotoAcc explained 64% to 82% observed variability Pbmax our data set, whereas none previously published models described over past 44 years any variance. significance result that primary limiting factor extracting ocean rates from satellite near surface chlorophyll has been errors estimate Pbmax. Our should thus much improved calculations oceanic photosynthesis role oceans global cycle.