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Modelling the dynamics of the terrestrial biosphere involves four stages: calculating the area which can be colonised by vegetation; parametrising the exchanges of energy, water momentum, carbon dioxide, or other physical and chemical quantities; simulating local ecological dynamics; and describing migratory processes. In this paper, seven generic models of ecological dynamics are described, evaluated and illustrated. These are probabilistic, inferential, threshold, statistical, response surface, ecophysiological, and mechanistic models. The CFL stability criterion ensures that a model does not transfer atmospheric information more rapidly through space than time. Conversely, a vegetation model should give the landscape enough time for movements of vegetation across the landscape to be properly registered. The migration criterion suggested here guarantees that this is the case.

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Authors: MARTIN P, JRC Ispra (IT)
Bibliographic Reference: Article: Subtropical climates and their evolution : From space-based observation to modelling, September (1992) pp. 687-704
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