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… interview analysis of private forest owner’s deficient motivation regarding pre-commercial thinning. The purpose of the project is to investigate what the Forestry Board can do to motivate private forest owners to do more pre-commercial thinning. The results build upon 16 …
a look at Finnish and Swedish forest practices and their applicability in British Columbia’s Interior forests
… of trees in a forest stand prior to final harvest. The term can be divided in pre-commercial thinning where little if any volume is removed from the stand and commercial thinning where removals are intended to provide a positive economic result. From a silvicultural point of …
Earlier attempts at mechanising pre-commercial thinning have been met with varying degrees of success. Most attempts have been based on techniques where residual stems are straddled. Early treatment is essential to limit damage on residual trees. One part of the present study is …
… topic of discussion within the forestry sector. When stands that have not been pre-commercially thinned are reaching the level of commercial thinning, many problems occur in terms of decision-making and economical outcomes. These types of stands are commonly known as …
The aim of this work is to demonstrate how the net present value (NPV) at the time of the first thinning depends on the spacing after pre-commercial thinning, and show how net value from first thinning in same stand is influenced. This study is performed with models based on …
… forest models were used. There were two alternatives for calculation, one with pre-commercial thinning up to registrated number of main plants, and one without pre-commercial thinning. The calculations were set to a future thinning phase occuring when the objects had an average …
… on behalf of future growth, theoretical economic result, wind impact, snow pressure and density of stand. The investigation is regarding the first commercial thinning of pine stands, after pre-commercial thinning that was well conducted. The investigation area was located near …
<em>En kvalitativ intervjustudie</em>
… was to examine how small-scale private forest owners make decisions regarding pre-commercial thinning. In 2015 it is ten years ago since the storm Gudrun hit the southern parts of Sweden and now large areas are in need of pre-commercial thinning. This study is built upon …
… than forests over 60 years that have not been commercially thinned in. From pre-commercial thinning no conclusions for bears in general could be done, but males tend to select for stands that has been pre-commercial thinned. Forest management in the two study areas differs with …
i stormen Pers fotspår
… also important that the stand has had the right management in the past, e.g. pre-commercial thinning. The third factor is the ground on which the spruce and pine grow. This because both species are dominant on different type of ground and their roots develop differently. The …
The main purpose of this study is to investigate the needs of pre-commercial thinning on private owned forest properties, which is considered to be increasing. The reason is believed to be the high cost of labor that pre-commercial thinning brings. Furthermore thinning is …
a comparison between high and low Norway spruce and birch stumps : a measuring of the efficacy of Phlebiopsis gigantea stump treatment
… in the northernhemisphere, including Sweden. New results indicate that pre?commercial thinnings could be at riskfor Heterobasidion spp. infections. Since no wood usually is used from pre?commercial thinnings,there would not be any timber losses from leaving high stumps instead …
Root rot causes large economical losses for Swedish forestry. The spread of root rot can partly be prevented by treating the spruce stumps in thinnings. Late pre-commercial thinning (PCT) is one of the forestry measures where stump treatment is not used. Late PCT can be defined …
In Sweden, harvesting pre-commercial thinning (PCT) stems for energy purposes is a interesting way of financing the high cost of preparing dense stands for a profitable first conventional thinning. This concept can be labelled bioenergy thinning. The aim of this study was to …
… in young stands. Through mutual efforts it is possible to change the negative prevailing trend in the silviculture measures in young stands showing bad pre commercial thinning result, returning to the thinning levels reached in times when pre-commercial thinning obligations …
