FRA 2005 - national reporting tables
Specification of National Reporting Table T6
T6 Biomass stock
T6.1 RationaleThe information on 'Biomass stock' is essential to assess the amount of carbon that exists in the woody vegetation on 'Forest' and 'Other wooded land'. This information is directly linked to the international processes reporting on greenhouse gases and climate change. The information on Biomass stock is also of interest from a wood energy point of view.
T6.2 SpecificationsUnits and reporting years
|Unit of reporting||Million metric tonnes biomass (Oven dry weight)|
|Area to which reported figures refer||Area classified as 'Forest' and 'Other wooded land' in table T1|
|Reporting years||1990, 2000 and 2005|
Categories and definitions
In order to harmonise with ongoing international processes and to reduce the reporting burden, the categories and definitions used in FRA 2005 correspond to those established by the Intergovernmental Panel on Climate Change.
|Above-ground biomass||All living biomass above the soil including stem, stump, branches, bark, seeds, and foliage. |
|Below-ground biomass||All living biomass of live roots. Fine roots of less than 2mm diameter are excluded because these often cannot be distinguished empirically from soil organic matter or litter. |
|Dead wood biomass||All non-living woody biomass not contained in the litter, either standing, lying on the ground, or in the soil. Dead wood includes wood lying on the surface, dead roots, and stumps larger than or equal to 10 cm in diameter or any other diameter used by the country |
Current and past definitions are available onFRA 2005 Terms and Definitions
Reporting table template
|FRA 2005 categories||Biomass (million metric tonnes oven-dry weight)|
|Forest||Other wooded land|
|Dead wood biomass|
Note: the countries should document the threshold value used for fine roots and dead wood.
Internal consistencyThe biomass figures are generally derived from the growing stock figures reported in table T5 through biomass expansion factors. The biomass expansion factors are multiplication factors that expand growing stock or commercial growing stock data to account for non-merchantable biomass components such as branches, foliage and roots.