Total phosphorus behavior modelling in the smir lake reservoir (Tetouan,Morocco)

In morocco,as elsewhere in the world,the phenomenon of eutrophication threatens to destroy the fragile balance of most water resources,especially water reservoirs and dams. to contribute to the knowledge of the key factors involved in the sound understanding and proper management of this phenomenon,we undertook the task of exploiting a basic physicochemical smir dam data,collected from 2001 through 2008,with a view to developing mathematical approaches and numerical models susceptible of providing information on the current status as well as expected future developments relative to the changes that are likely to trigger this process. to this end,we have analyzed the behaviour of several parameters; namely,phosphorus,a major element that characterizes the eutrophication of inland waters. the results obtained indicate the possibility of predicting the behaviour of the total phosphorus in function of several environmental variables and the corresponding trophic state.