Since 1922,Finnish government has carried out the tax-policy on productivity of field,which is based on the area and prolificacy of land.

• 芬兰自1922年起对林业实行立地生产力税制,根据土地面积和土地生产力征税,成为有效促进木材供应增长和鼓励林业投资的重要工具。