Modelling Approach of the Biogeochemical Cycle on the Moroccan Shallow Reservoir

Monitoring and a better understanding of the water resources are necessary to anticipate and develop measures to adapt to climate and water use changes. Therefore, we focused on the study of biogeochemical processes in the water body. We simulated the seasonal variability of nutrients, phytoplankton and zooplankton in a Moroccan shallow reservoir (Sidi Abderrahmane, Safi) using a biogeochemical model. The model calibration was studied using field data from January to December 2012. The model reproduces the temporal patterns of phytoplankton and zooplankton biomass, as well as nitrate and detritus distribution. Our results showed that nitrogen is not a limiting factor to the development of phytoplankton biomass at Sidi Abderrahmane Reservoir.