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Articles containing the keyword 'heathy forests'

Category : Article

article id 7035, category Article
V. T. Aaltonen. (1920). Use of water of the trees and the moisture conditions in the soil. Acta Forestalia Fennica vol. 14 no. 2 article id 7035. https://doi.org/10.14214/aff.7035
Keywords: regeneration; forest soil; water consumption; use of water; moisture conditions; heathy forests type
Abstract | View details | Full text in PDF | Author Info

The data has been collected in the dry heathy forests in Harjavalta commune in south-west Finland and in Sodankylä commune in Lapland in summer time 1918 and 1919. The aim to the study was to find out how does the water consumption of the trees affect the moisture conditions of the soil and how they are linked to the regeneration of the forest.

Trees in one age class have a certain spatial distribution: the greater the distance between trees the older the trees and the smaller the distance, the younger the trees. This seem to rather be due to the development of the root system and the nutrition intake of a tree than the competition for light. The moisture content of the upper soil layers is higher in the open areas than in the closed canopy stands. Hence there are more seedlings growing in open areas.   However, it is not clear whether the results apply for other forest site types as well, and more research is needed.     

  • Aaltonen, E-mail: va@mm.unknown (email)
article id 7034, category Article
V. T. Aaltonen. (1920). The distribution and abundance of the tree roots in the heathy forests on Lapland. Acta Forestalia Fennica vol. 14 no. 1 article id 7034. https://doi.org/10.14214/aff.7034
Keywords: pine; root system; heath; heathy forests; tree root; root competition; rootage
Abstract | View details | Full text in PDF | Author Info

The study presents and describes the abundance and distribution of tree roots in specific stands of heathy forest types in Lapland. The data was collected in the Sodankylä commune.  

Due to the shortcomings in the data, conclusions can be drawn only regarding pine forests. The result of study states that the root competition plays an important role in the development of the forests, and most of the other observed phenomena are linked with root competition. The more infertile the soil the vertically and horizontally wider and more abundant the root system. It seems that the abundance of the root system is similar in forest of same fertility class and same density and age.      

  • Aaltonen, E-mail: va@mm.unknown (email)

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