[Hydrogeochemistry of reservoirs of Imfout, Daourat and Sidi Maâchou dams (Morocco)].

Monitoring of the physico-chemical parameters of the water, nutriments and chlorophyll was carried out. Also, of the grading and physico-chemical characteristic of the sediment. Tests of fixation and salting out of phosphor were undertaken. Fluctuations were noted in the physico-chemical parameters, the functional reports, the involvement of the mineral fraction in the mobility of the phosphor in the water-sediment interface, the impact of the pH and an internal dynamic of the phosphor in the sediment.