Contact
Ola Langvall, Station Manager
Unit for Field-based Forest Research, SLU
ola.langvall@slu.se, +46 472 26 31 80
Trial 9044
Last changed: 24 April 2023
The experiment was established in 1923 in a stand that was naturally regenerated in 1864.
Experiment type
Thinning experiment.
Pinus sylvestris.
Purpose
Comparison of growth in a compartment that has been regularly thinned with the growth in a compartment that has been left untreated.
Experimental design
Compartment 1: 0.122 hectares.
Compartment 2: 0.148 hectares.
Management practices
Compartment 1
Thinning carried out six times when the stand was aged 60, 69, 78, 88, 84, and 104 years.
Compartment 2 (Control compartment)
Self-thinning. No active measures.
Data collection
Experiment 9044 has been measured on nine occasions from 1923 to 2000. The measurement data includes:
- Diameter of each tree.
- Height, crown height, and bark thickness of a randomly selected sample of trees.