A list of variables available for "dead trees" (i.e., those snags and DWD that are tracked indvidually). These variables are used within expressions.
See also: tree variables, resource unit variables, sapling variables
| variable | description |
| snag | `true` if the tree is a standing dead tree, `false` if downed (DWD). |
| volume | tree volume (m3) of the tree when dying (keeps constant, set to 0 for decay class = 5) |
| decayClass | class 1 to 5 (1 least decayed, 5 most decayed). Classes are set based on the proportion of remaining stem biomass |
| biomass | (remaining) stem biomass (kg) |
| remaining | proportion of biomass that is remaining (relative to biomass at time of death) |
| yearsStanding | years standing since death. The counter is set to 1 in the year following the year of death |
| yearsDowned | number of years the stem is on the ground. The total number of years since death is yearsStanding + yearsDowned. |
| reason | Reason of death: 1: normal mortality, 2: bark beetle, 3: wind, 4: fire, 5: management |
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