Current issue: 53(1)
Water and amount of light are the most important growth factors and the article discusses their relationship. It is knows that the more space is needed by a tree the worse the site is. The number of stems varies between tree species. Common understanding is that amount of light is decisive to self-thinning and regeneration of a stand. On a good site the adequacy of water may substitute the lack of light. However, the fertility of soil and moisture content is more important than light.
The question of the importance of light, soil fertility and water content, as well as their relationship is important when optimizing the forest management.
The PDF contains a summary in Finnish.