| Area of roundwood logging: (1000 ha/y) | |
| Area of commercial roundwood (saw logs and pulpwood) logging | |
| Biomass of total drain: (1000 t/y) | |
| Total dry mass of 1) stems, branches, foliage, stumps and roots of trees felled in commercial or non-commercial cuttings and hauled for usage as sawn goods, pulp or energy or left on the ground to decompose and 2) stems, branches, foliage, stumps and roots of trees dead due to the natural mortality and left on the ground to decompose. Natural mortality consists of a random factor (storms, insects etc.) and a self-thinning factor due to the overdensity (Hynynen et al. 2002). The dry masses are calculated using Marklund's (1988) models (cf. biomasses of living trees). | |
| Branch and foliage biomass of living trees: (1000 t) | |
| Total dry mass of branches (living and dead) and foliage (leaves/needles) of living trees. The dry masses are calculated using Marklund's (1988) treewise models in which the independent variables are tree species, diameter at breast height and height. | |
| Branch and foliage biomass of total drain: (1000 t/y) | |
| Total dry mass of 1) branches and foliage of trees felled in commercial or non-commercial cuttings and hauled for energy usage or left on the ground to decompose and 2) branches and foliage of trees dead due to the natural mortality and left on the ground to decompose. Natural mortality consists of a random factor (storms, insects etc.) and a self-thinning factor due to the overdensity (Hynynen et al. 2002). The dry masses are calculated using Marklund's (1988) models (cf. biomass of branches and foliage of living trees). | |
| Forest and poorly productive forest land available for wood : | |
| Forest land with no administrational limitations for wood production and forest land and poorly productive forest land with limited (not totally forbidden) wood production. | |
| Forest area: (1000 ha) | |
| Area (hectares) of forest land and poorly productive forest land calculated according to the land areas that NFI sample plots represent. | |
| Forest land: | |
| Land on which the potential average annual growth of stem wood including bark is at least 1,0 m3 per hectare. | |
| Increment: (1000 m3/y) | |
| Volume increment (incl. bark) is calculated by trees as stem volume differences between two states and summing up the treewise differences. | |
| Poorly productive forest land (scrub land): | |
| Land on which the potential average annual growth of stemwood including bark is 0,10-0,99 m3 per hectare. | |
| Pulpwood: | |
| Part of a stem which is suitable according to the Finnish timber assortment standards by size and quality for the manufacturing of pulp or other wood fiber products. | |
| Pulpwood cutting reserve: (1000 m3/y) | |
| Roundwood cutting reserve that fulfills the standards for pulpwood but not for saw logs (cf roundwood cutting reserve). Note: Since 16.06.2015 also the removal of roundwood sized energywood has been taken into account. | |
| Pulpwood removal: (1000 m3/y) | |
| The volume of the part of trees which fulfill the min. standards of pulpwood but not standards for saw log felled in commercial roundwood loggings and hauled to the road side (solid cubic meter incl. bark) . | |
| Roundwood cutting reserve: (1000 m3/y) | |
| Roundwood mature for commercial fellings according to the silvicultural recommendations for commercial fellings during the period in question but which for economical or sustainabilty reasons are postponed to the future periods. Roundwood cutting reserve consists of saw log reserve and pulpwood reserve. Note: Since 16.06.2015 also the removal of roundwood sized energywood has been taken into account. | |
| Saw log: | |
| Part of a stem which is suitable according to the Finnish timber assortment standards by size and quality for the production of sawn goods. | |
| Saw log cutting reserve: (1000 m3/y) | |
| Roundwood cutting reserve that fulfills the standards for saw logs (cf roundwood cutting reserve). | |
| Saw log removal: (1000 m3/y) | |
| The volume of the part of trees which fulfill the min. standards for saw logs felled in commercial roundwood loggings and hauled to the road side (solid cubic meter incl. bark). | |
| Stem biomass of cutting drain: (1000 t/y) | |
| Dry mass of stems (stem wood and bark) of trees felled in commercial cuttings and hauled to the road side (biomass of cutting removal) or left on the ground to decompose (stem biomass of logging residue). The dry masses are calculated using Marklund's models (cf stem biomass of living trees). | |
| Stem biomass of living trees: (1000 t) | |
| Total dry mass of stem wood and stem bark from the stump height (1 % of of tree height) to the top of a tree. The dry masses are calculated using Marklund's (1988) treewise models in which independent variables are tree species, diameter at breast height and height. | |
| Stem biomass of roundwood removal: (1000 t/y) | |
| Dry mass of stems (incl. bark) harvested for saw logs or pulpwood. The dry masses are calculated using Marklund's (1988) models (cf biomass of stems of living trees). | |
| Stem biomass of total drain: (1000 t/y) | |
| Total dry mass of 1) stems of trees felled in commercial or non-commercial cuttings and hauled for usage as sawn goods, pulp or energy or left on the ground to decompose and 2) stems of trees dead due to the natural mortality and left on the ground to decompose. Natural mortality consists of a random factor (storms, insects etc.) and a self-thinning factor due to the overdensity (Hynynen et al. 2002). The dry masses are calculated using Marklund's (1988) models (cf. stem biomass of living trees). | |
| Stem volume: (1000 m3) | |
| Stem (wood and bark) volume as solid cubic meter from stump height to the top of a tree calculated as the sum of trees. Volume of an individual tree is obtained applying taper curve models and volume functions of Laasasenaho (1982). | |
| Stem volume of roundwood removal: (1000 m3/y) | |
| Volume of stems (incl. bark) as solid cubic meter harvested for saw logs or pulpwood. | |
| Stem volume of total drain: (1000 m3/y) | |
| Total stem volume of trees as solid cubic meter incl. bark felled in commercial or non-commercial loggings or drain and mortality. Cutting drain constitutes stem wood (including bark) of cutting removal and logging residue. Logging residue is the part of stem wood (incl. bark) felled in cuttings or in silvicultural operations (tending of young stands, clearing of regeneration areas) that does not fullfil the standards of commercial timber. Mortality is defined as the stem volume of dead trees left on the ground to decompose. | |
| Stump and root biomass of cutting drain: (1000 t/y) | |
| Dry mass of branches and foliage of trees felled in commercial loggings. The dry masses are calculated using Marklund's (1988) models (cf biomass of branches and foliage of living trees). | |
| Stump and root biomass of cutting drain: (1000 t/y) | |
| Dry mass of stumps and roots of trees felled in commercial loggings. The dry masses are calculated using Marklund's (1988) models (cf biomass of stumps and roots of living trees). | |
| Stump and root biomass of living trees: (1000 t) | |
| Total dry mass of stumps and roots of living trees. The dry masses are calculated using Marklund's (1988) treewise models in which the independent variables are tree species and diameter at breast height. | |
| Stump and root biomass of total drain: (1000 t/y) | |
| Total dry mass of 1) stumps and roots of trees felled in commercial or non-commercial cuttings and hauled for energy usage or left on the ground to decompose and 2) stumps and roots of trees dead due to the natural mortality and left on the ground to decompose. Natural mortality consists of a random factor (storms, insects etc.) and a self-thinning factor due to the overdensity (Hynynen et al. 2002). The dry masses are calculated using Marklund's (1988) models (cf. biomass of stumps and roots of living trees). | |
| Stumpage price value of growing stock: (million €) | |
| The total value of living trees calculated using corresponding stumpage prices for saw logs and pulpwood. | |
| Total biomass of cutting drain: (1000 t/y) | |
| The total dry mass of stems (incl. bark), branches and foliage, stumps and roots of trees felled in commercial cuttings. | |
| Total biomass of living trees: (1000 t) | |
| Total dry mass of living trees calculated as the sum of dry masses of 1) stem (wood and bark), 2) branches and foliage and 3) stumps and roots. The dry masses are calculated using Marklund's (1988) models. | |