Current issue: 52(2)
Under compilation: 52(3)
Literature knows a variety of forest and timber related balances and even wider variety of calculations concerning the themes. The article presents forest and timber balances divided into three categories, based on their purpose.
The three categories are: 1) (national) economic balances for calculating the sustainability of forest use and sufficiency of forest resources; 2) balances of yearly harvesting rates for mostly commercial purposes, but also economic uses; and 3) balances of timber demand and those for balance between supply and demand, especially for foreign trade.
Finally the author critically views the use of balances to describe the amounts of wood used in industry.The PDF contains a summary in Finnish.
The article presents the background of increment calculations and periodic measurements of forests, as well the historical development of increment calculations in North-America, Middle-Europe, Scandinavia and Finland. The measurements and calculations are presented for individual trees, for a forest stand and for the total resource of a normal forest stand.
The practice of increment calculations has still some problems regarding the measurements of standing and harvested trees. The article discusses some ways to overcome the problems.