ENERGY SIMULATION MODEL OF AGROECOSYSTEM - CASE STUDY OF ANIMAL BREEDING FARM

The process of simulation in the environment-economy systems, such as the agro-ecosystems, mainly uses the logical models as a bases of trying to copy the dynamic of the real situation from the system, for example from an animal breeding farm integrated in the natural environment. This is done aiming to preview the effective behaviour. The proposed simulating model has the form of a logical flow diagram describes the interdependence of the logical relation between variables. The paper proposes itself to find the optimum variant through the energetic transformations in agro-ecosystems by decomposing and analysing the composing subsystems. The objective is to put into evidence the quantitative and qualitative influence of the values of inputs upon the outputs, respectively, resulting biomass (i.e. agro-food products) emergetically expressed. Using the possibilities offered by the MATLAB/SIMULINK software system one can deduce a series of observations and conclusions which allow appreciating the degree of sustainability of the evolution of the agro-ecosystems and of the economic units integrated in them.