Template:Heureka Data And Models

Data and data models

Forest data input

The Heureka system includes a database that stores areas, stands, cells, sample plots, and tree-level data (sample trees). Functions are available to import NFI data, compartment register data, GIS shape files, kNN data, and some other data sources. In case tree-level data is not available, the system can simulate trees lists from theoretical diameter and height distribution models.

User input

There are extensive options for the user to control how computations are made. For example, the user can choose what growth model to use, the timing (range) of harvest activities, how thinnings should be performed, whether a certain part of a stand should be set aside for nature conservation, etc.

Models

The "driving force" in Heureka is the growth, mortality, regeneration and cutting of trees. There models constitute the growth-and-yield models, on which most of the other models in the system depend. An exception is the soil model which predicts the amout of soil carbon and soil nitrogen, using litter as one input.

PlanWise supports forest planning problems of Model 1 type^[1], meaning that the developement of each stand is projected over the entire planning horizon.
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