2.5. Silviculture on uneven-aged stands
Most of the flora and fauna of the boreal forest are also
adapted to the abrupt environmental changes caused by
large-scale natural catastrophes, such as like storm and
fire. These disasters will increase the amount of dead and
fallen trees, but they very seldom destroy the whole stand
(Kuuluvainen, 2002). Pioneer species, like silver birch,
very easily occupy the open land, especially, if the vegetation has been burnt. The new tree generation is even-aged
with some overstorey trees of the former generation.