Author(s)

J.A. Lopez, J. Mateu, J. Castello & F. Marco

Abstract

In many cases, modelling of ecosystems results from the setting up of a system of ordinary, nonlinear differential equations whose flow variables are functions obtained from experimental data. The flow variables determine the variations of the system states and characterize the actions that are taken in it which are accumulated in the corresponding levels or states. Equations that define the behaviour of the system are associated with a flux variable. These equations receive the name of flow equations or decision equations. They are the relations between external variables and state variables. Said variables will be different for each state variable and they will be determined by experimentation and/or evaluation depending on the particular conditions. The aim of this

Keywords