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The landscape model in ALMaSS

The landscape model is at the heart of ALMaSS. The model can handle a landscape map of up to 10,000 x 10,000 units, providing for detailed structures such as field boundaries, to be represented even at a map size of 10 x 10 km. The detail is one of the characteristics that sets ALMaSS apart from other models, it is also necessary to allow the realistic simulation of the behaviour of the range of species modelled.

 

 

  

 

 

 

The landscape model provides the data for the animal models as well as providing one way in which model scenarios can be generated. The landscape model is a dynamic structure, with a weather simulator, a road-traffic simulator, and simulated farm management.

Vegetation growth

Inside the model landscape, all vegetation types and crops have their own seasonal growth models supplying vegetation height, green and total, biomass.

The result is a dynamic landscape with all vegetation growing in response to the weather. Crops and other vegetation also respond to management. Crops will grow from sowing and respond to management events such as harvest and cutting. Non-crop vegetation can also be managed, e.g. roadside verges are mown during summer in the model.

A description of the implementation of vegetation growth models in ALMaSS can be found here.