Methodologies for evaluating farming systems. Part II: Energy efficiency (EMERGY), farms’ trajectory and an example of a whole farm model (GAMEDE)
Résumé
This paper is the continuation of the one published in Pastos y Forrajes, no. 1, 2016, in which the
general bases of a selection of currently internationally available methodologies for the dynamic
evaluation of production systems, are offered. This part describes the methodologies Integral
Energy Evaluation (EMERGY) and Systems’ Trajectory; and also a concrete example is provided of the application of the principles of these methods in the construction of an integral evaluation model of farming systems, called GAMEDE.