Glosary
Aboveground biomass (ABM): All tree parts that grow above the ground surface, such as stem, stump, branches, bark, seeds and foliage.
Agriculture, Forestry and Other Land Use Sector (AFOLU): Sector scope used by for example the UN and the IPCC for the segment of the economy where forestry is included.
Agroforestry: A land-use system that involves a mixture of trees or other woody perennials in crop and/or animal production systems.
Basic wood density (D): The weight of the wood per unit of volume. Expressed as ratio of dry weight (in tonnes) and green volume (in cubic metres).
Belowgrand biomass (BGB): All biomass in live roots (excluding fine roots).
Biological carbon pool: A carbon pool that is of biological origin (for example vegetation).
Biomass expansion factor (BEF): The share of the total tree biomass in relation to biomass in the merchandable part of the tree stem.
Dead organic matter (DOM): All dead biomass in different stages of decomposition that remains on site.
Dead wood (DW): Dead wood in different stages of decomposition that remains on site.
Deep drained: Organic soils where water table is more than approximately 30 cm below the surface, resulting in higher quantities of biomass being exposed to aerobic decomposition, and therefore higher annual carbon emissions.
Drained: This refers to organic land where the water level has been decreased with drainage to improve growing conditions. This is a generic category when more detailed drainage status is unkown (cf. "deep-drained" and "shallow drained")
Emmision: The release of GHG into the atmosphere.
Removal of emissions: Removal of emissions, such as carbon dioxide, from the atmosphere.
Forest land (FL): Land-use category. All land that is classified as forests.
Forest plantation: Forest land that is established by planting or/and seeding.
Growing stock: The total volume of the commercial parts of the stems of the living trees.
Harvested wood products: Products that are produced from the commercial parts of the trees after harvesting.
Improved grassland: Represents grassland which is sustainably managed with light to moderate grazing pressure and that receive some management improvement.
Land-use-conversion: Change of the land-use category to another.
Living biomass: living trees and other vegetation.
Mean annual increment: The average annual increase in the merchantable part of the living tree over the management rotation cycle. Expressed as cubic metres of wood per hectare per year.
Medium input: Medium additional inputs are applied to the soil regularly, resulting in moderately increased soil carbon stocks.
Non-timber-forest-products (NFTP): Products that are produced from the commercial parts of the trees without harvesting.
Nutrient-poor: This refers to ombrogenic organic soils with low nutrient levels (nitrogent, phosporous, etc.) and pH. When drained, these soils have also lower carbon emissions.
Perennial/Tree crop: Crops that are not replanted each year and grow back after harvesting.
Removal: Removal of GHG from the atmosphere by a sink.
Root-to-shoot ratio (R): Ratio of belowground biomass and aboveground biomass.
Sequestration: Natural process of living biomass absorbing carbon in the form of carbon dioxide from the atmosphere. The general process of storing carbon in a carbon pool.
Volcanic soils: Soils derived from volcanic ash. Often very high capability to hold water and nutrients, leading to very fertile soils.
Wetland soils: Mineral soils with restricted drainage leading to periodic flooding and anaerobic conditions.
