Details

Stråkröjning och skogsbränsleuttag i unga granbestånd jämfört med konventionella metoder : Två fältstudier vid Asa försökspark

by Rosander, Konrad

Abstract (Summary)
This thesis is based on two field studies in a recently started demonstration experiment by the Asa Experimental Forest, where it will be used for educational purposes. Study 1 consisted of experimental plots in a 13 years old stand which have been pre-commercial thinned to the same number of tree stems but with three different methods: motor-manual selective pre-commercial thinning by brush saw, mechanical pre-commercial line thinning and as a combination of the both methods. The purpose was to describe the present status, run simulations and produce forecasts for the development of the stand and calculate the economical aspects up to and including the first thinning and then compare the different methods with each other. Study 2 consists of experimental plots in a 23 years old stand with a pre-commercial thinning backlog, where four different treatments were tested; no pre-commercial thinning at all before the first thinning, low pre-commercial thinning in connection with the first thinning, late pre-commercial thinning and extraction of wood fuel. The purpose was also here to compare the different methods with each other through describing the present status, run simulations and produce forecasts for the development of the stand and calculate the economical aspects at the first thinning and in this study also up to and including the second thinning. The two new methods, mechanical pre-commercial line thinning in study 1 and wood fuel extraction in study 2, showed a great potential in comparison with the conventional methods.
Bibliographical Information:

Advisor:

School:Växjö universitet

School Location:Sweden

Source Type:Master's Thesis

Keywords:pre commercial thinning line wood fuel extraction the asa experimental forest spruce

ISBN:

Date of Publication:12/21/2006

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