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All areas designated as forest according to the NFI forest definition. The forest definition includes shrub forest. The target variable "forest area" is also used when classifying the total area as forest or non-forest.

Sum of the stem cross-sectional areas at a height of 1.3 m (level for measuring diameter at breast height [dbh]) of living trees and shrubs (standing and lying) with a dbh ≥12 cm.

Stemwood volume of all trees and shrubs with a diameter at breast height (dbh) ≥12 cm with bark that were harvested between two inventories.

Stemwood volume of all trees and shrubs with a diameter at breast height (dbh) ≥12 cm with bark that were harvested, died or disappeared between two inventories.

Volume of stemwood with bark of all trees and shrubs ≥12 cm diameter at breast height (dbh) that were felled, died or disappeared between two inventories with the cause of death given.

Volume of stemwood with bark of all trees and shrubs ≥12 cm diameter at breast height (dbh) that were removed from the forest because of damage that occurred between two inventories rather than due to silvicultural planning. The characteristic is derived at the sample plot level from the fellings of the tally trees and the proportion of sanitary/salvage fellings (according to information from the foresters).

Increase in stemwood volume between two inventories of all surviving trees and shrubs with a diameter at breast height (dbh) ≥12 cm with bark, the stemwood volume of all ingrowing trees and shrubs with bark, and the modelled increase in the stemwood volume of the losses with bark during half the inventory period.

Increase in the stemwood volume between two inventories of all surviving trees and shrubs with a diameter at breast height (dbh) ≥12 cm with bark, the stemwood volume of all ingrowing trees and shrubs with bark, and the modelled increase in the stemwood volume of the losses with bark during half the inventory period minus the volume of mortality. The net increment thus corresponds to the increment (=gross increment) minus the volume of mortality.

Stemwood volume of all trees and shrubs with a diameter at breast height (dbh) ≥12 cm with bark that were harvested, died or disappeared between two inventories.

Volume of stemwood with bark of all trees and shrubs ≥12 cm diameter at breast height (dbh) that were felled, died or disappeared between two inventories with the cause of death given.

Stemwood volume of all trees and shrubs with a diameter at breast height (dbh) ≥12 cm with bark that died naturally between two inventories (e.g. due to windthrow or insects) or disappeared (e.g. due to avalanches), but that were not harvested. Mortality is the sum of natural losses and the remaining mortality.

Number of stems of living trees and shrubs (standing and lying) with a diameter at breast height (dbh) ≥12 cm.

Number of stems of all living and dead trees and shrubs (standing and lying) with a diameter at breast height (dbh) ≥12 cm. The total number of stems is the sum of the number of stems and the number of deadwood stems.

Stemwood volume of living trees and shrubs (standing and lying) with a diameter at breast height (dbh) ≥12 cm with bark.

Stemwood volume of all living and dead trees and shrubs (standing and lying) with a diameter at breast height (dbh) ≥12 cm with bark. The total wood volume is the sum of the growing stock and deadwood volumes.

Volume of stemwood of all dead trees and shrubs (standing and lying) with a diameter at breast height (dbh) ≥12 cm with bark.