Tree data member list
This is a list of the possible data that a tree can have. You can save this data in a detailed output file by using the Setup tree save options window.
Data that is always present
Some data are fundamental to a tree and are always available for saving. They are:
- X. The coordinate of the tree, in meters, on the X axis in the SORTIE plot.
- Y. The coordinate of the tree, in meters, on the Y axis in the SORTIE plot.
- DBH. The diameter at breast height of a tree, in cm. This does not apply to seedlings.
- Diameter at 10 cm (diam10). The tree's diameter at 10 cm height, in cm. This applies only to seedlings and saplings.
- Height. The tree's height in meters.
- Age. The time since death, in years. Only for snags.
Behavior-specific data
Certain sets of behaviors require additional information about a tree. One of the ways in which behaviors communicate with one another is by defining new pieces of data for trees and then setting and reading values for those data. A piece of data created by a behavior is only attached to those tree species and tree types to which the behavior is applied.
The name in parentheses is the name SORTIE uses.
- Light level (Light). Light level for the tree. This could be GLI, or percent shade (if Sail Light is used). This is created by any of the light behaviors except the Beer's Law light filter.
- Diameter growth (Growth). Amount of diameter growth per year in mm. This is created by any of the growth behaviors that increment diameter growth.
- Light filter respite counter (lf_count). Created by the Beer's law light filter behavior. It contains the years of respite for a new seedling from the effects of the light filter.
- Rooting height (z). The height, in mm, above ground level at which a seedling is rooted. Created by the Beer's law light filter behavior.
- Years released (ylr). The length of the current release period, in years. Created by the absolute growth behaviors.
- Years suppressed (yls). The length of the current suppression period, in years. Created by the absolute growth behaviors.
- Dead flag (dead). A boolean flag for whether a tree has died. Created by any of the mortality behaviors. This is used by the dead tree remover behavior to find the trees it should remove.
- Tree Bole Volume (Bole Vol). The volume of a tree, in cubic feet. Created by the Tree bole volume calculator behavior.
- Tree Volume (Volume). Volume of the tree, in cubic meters. Created by the Tree volume calculator behavior.
- Tree Biomass (Biomass). Biomass of the tree, in metric tons (Mg). Created by the Dimension analysis behavior.
- Tree Age (Tree Age). Age of the tree, in years. Created by the Tree age behavior.
Last updated: 24-Oct-2006 07:02 AM