Dead Wood Results

This result group contains: Volume of dead wood per decay class.

Calculation of dead wood

See model description for model description for dead wood.

The projected occurrence of dead wood is a result of dead wood inventory data (if supplied or calculated), occurrence of mortality, and dead wood decay.

Note! All dead wood results refer to the stem part, including bark, above ground. Harvest residues that are not exctracted as biofuels, and tree parts from naturally dead trees, are transferred to the soil carbon model. The top of the stem is a special case: it is transferred to the dead wood pool if the tree dies naturally, but transferred to the soil carbon model if the tree is harvested and the tree top is left in the forest. Only mortality in established stands is transferred to the dead wood pool, mortality in young stands are transferred as litter to the soil carbon model.

(branches, foliage, stumps, roots and tree tops) that are not exctracted , Tree tops from harvested trees, as well as branches, foliage, stumps, roots from harvested trees and from trees that have recently died, are transferred to the soil carbon model, if not extracted as biofuels. Note that the tree top, excluding branches, of a tree that dies naturally is included as part of the tree volume and is transferred to the dead wood pool. 

Result variables

MinDiameter, indicates if the minimum diameter set in the Dead Wood control table (default 10 cm) is used.

Variable name	Unit	Min diameter used?	Description
Carbon in Deadwood	tonnes C/ha	Yes	Carbon content in dead wood, based on the biomass (which differs between decay class) in stem and bark.
Dead Standing Trees	volume, m3sk/ha	Yes	Volume of dead standing trees, with a diameter ≥ MinDiameter when the tree died. Depending on decay class, a certain proportion of the dead wood is assumed standing dead trees, and the rest assumed downed, see table below.
Dead Standing Coniferous Trees	volume, m3sk/ha	Yes	Volume of dead standing trees of pine, spruce, and Logepole pine. Larch is also included.
Dead Standing Deciduous Trees	volume, m3sk/ha	Yes	Volume of dead standing trees of broad-leaved trees.
Downed Dead Wood	volume, m3sk/ha	Yes	Volume of downed standing trees, with a diameter ≥ MinDiameter when the tree died. Depending on decay class, a certain proportion of the dead wood is assumed standing dead trees, and the rest assumed downed, see table below.
Downed Standing Wood Coniferous	volume, m3sk/ha	Yes	Volume of downed dead wood of pine, spruce and Logepole pine. Larch is also included.
Downed Dead Wood Deciduous	volume, m3sk/ha	Yes	Volume of downed dead wood of of broad-leaved trees.
Volume Decay Class 0-4	volume, m3sk/ha	No	Volume of dead wood in a given decacy class.