AmeriDendro 2013 registration is open: follow the link on the Overview page.
Black spruce stem and root growth after commercial thinning
Presented by Audrey LEMAY on 15 May 2013 from 18:00 to 21:00
Type: Poster Presentation
Session: Poster Session + Reception
Board #: 29
The root system is often neglected in the study of the effect of commercial thinning, even though it plays a great part in the success of the treatment. The research aims to compare the growth response in the stem and roots after commercial thinning. Six black spruce (Picea mariana) stems and their root system were sampled within three commercial thinning stands in the boreal forest. Thinning occurred ten to twelve years prior to sampling. A decreasing radial growth pattern in the stem and the root system was observed in the thirty years prior to thinning. After thinning, radial growth increased in both tree parts but the increase was faster and larger in the roots. The growth increase in the roots was also more important further away than closer to the stump. This observation can be interpreted as the trees allocating more resources to roots for stability and better water transport.