Incorporation into a Dynamic Global Vegetation Model

The LPJ-DGVM (Sitch et al. 1999) models vegetation processes dynamically at two levels on a grid cell basis. Here, the grid cell size is 0.5° x 0.5° (ca. 50 km), which gives the frame for the set of the processes and their modelling approach (Fig. 3). Processes like photosynthesis and water balance are simulated daily for an average individual of a given Plant Functional Type (PFT), with processes of carbon allocation and competition between individuals updated annually.  
The concept of PFT is a method to classify vegetation after their phenological, bioclimatical, physiological and physiognomic character. The LPJ-DGVM uses 9 classes to represent major types of plants in the terrestrial biosphere. 
 
 
Fig.3. The LPJ-DGVM modelling scheme
 
 
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