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Full text of this article is only available in PDF format.

Werner Cajanus (email)

The development of even-aged forests stands - a statistical study

Cajanus W. (1914). The development of even-aged forests stands - a statistical study. Acta Forestalia Fennica vol. 3 no. 1 article id 7531. https://doi.org/10.14214/aff.7531

Abstract

The aim of the study is to generate yield tables that enables calculating the stumpage values of the forests in different ages. The article investigates the diameter distribution of a stand at the breast height and their changes with the age of the stand.  In an even-aged stand the calculating of the stumpage value is based on height and breast height diameter. Hence the diameter distribution of a stand determines the stand volume, the stem frequency distribution series can be used as the basis of compiling the yield tables, in which the volume is the main factor.   

The study is based on spruce and pine mensuration data from Finland, pine stands from Prussia, and spruce stands from mountainous area of Switzerland. The article presents the characteristics of stem frequency distribution series based on the data. The studied characteristics are arithmetic middle, dispersion, asymmetry (skewness) and excess.

It can be recommended to create tables that show the different developments for age classes. Based on such tables the expected value of the stand can be calculated in practical forest management. Determining a general value of a stand in different forest site types would be important for forest valuation and forest statistics.    

Keywords
forest valuation; forest mensuration; yield tables; growth tables

Published in 1914

Views 5806

Available at https://doi.org/10.14214/aff.7531 | Download PDF

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