Setting up trees: parameters

Here is the complete list of parameters for the tree population and allometry. Not all of them are required.

Tree parameters

Parameters dealing with tree initial conditions - none of these are required:

• Initial Densities The density of trees, in number per hectare, for that size class.
• Initial Density (#/ha) - Seedling Height Class 1 Number of seedlings per hectare to create in the first seedling height class. The lower bound of this class is 0 cm and the upper bound is the value in the Seedling Height Class 1 Upper Bound, in cm parameter.
• Initial Density (#/ha) - Seedling Height Class 2 Number of seedlings per hectare to create in the second seedling height class. The lower bound of this class is the value in the Seedling Height Class 1 Upper Bound, in cm parameter and the upper bound is the value in the Seedling Height Class 2 Upper Bound, in cm parameter.
• Initial Density (#/ha) - Seedling Height Class 3 Number of seedlings per hectare to create in the third seedling height class. The lower bound of this class is the value in the Seedling Height Class 2 Upper Bound, in cm parameter and the upper bound is 135 cm (the tallest possible seedling height).
• Seedling Height Class 1 Upper Bound, in cm The upper bound of the first seedling height class, in cm, for specifying seedling initial densities. The lower bound of the size class is 0.
• Seedling Height Class 2 Upper Bound, in cm The upper bound of the second seedling height class, in cm, for specifying seedling initial densities. The lower bound of the size class is the Seedling Height Class 2 Upper Bound, in cm parameter. There is a third size class, whose lower bound is this parameter's value and whose upper bound is 135 cm.
• Tree Map To Add As Text External tree map file to add.

Basic tree population parameters - required:

• Minimum Adult DBH The minimum DBH at which trees are considered adults. (See more about tree life history stages here.)
• Max Seedling Height (meters) The maximum seedling height, in meters. Trees taller than this height are saplings. (See more about tree life history stages here.)
• New Seedling Diameter at 10 cm The average diameter at 10 cm height value for newly created seedlings, when another size is not specified. Actual values are randomized slightly around this value.

In addition to the values listed in the parameter window, the tree population also keeps the list of species and size classes. These can be edited in the Tree population - edit species list window and Tree population - edit initial density size classes window.