Research

• Variations of pre-commercial thinning and ordinary thinning and their impact on production and quality,
• variations of harvesting and regeneration, such as selection felling, shelterwood, and seed tree regeneration,
• forestry with plants of different geographic origins, tree species, and genetically improved seedlings,
• impact of forestry on ground water, for example, on runoff, water quality and groundwater level,
• soil productivity after full tree utilization and fertilization.

Field experiments 

Siljansfors Experimental Forest is home of a large and diverse range of long-term forest-related field experiments. Here is a selection of these experiments, partly to provide examples of the different types of experiments, but also to draw attention to the long-term nature and potential of the experimental forest. Click on each experiment for a brief summary.

• Trial 9044- Scots pine thinning experiment, established in 1923. The experiment compares the growth in a compartment that has been regularly thinned with the growth in a compartment that has been left untouched.
• Trial 9214 - Provenance experiment in Lodgepole pine, established in 1962. The aim of the experiment is to demonstrate the most suitable provenance of Lodgepole pine for the soil and climate in Siljansfors.