In addition, detailed information will be available in the near future from forest inventories and taxations on the forest district level, which are implemented as the basis for 10-year management plans. Only 20% of the total forest area is available for wood supply, but according to the legislation these areas also have to fulfil erosion control and water protection functions. Nearly 10% of the total forest is conserved for protection of biodiversity in protected areas, but the conservation of biodiversity is also considered in the management of forest areas outside the protected area system. One study (Garforth, et al.,