We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Circumferential variation of heartwood and stem quality in maritime pine stems.
- Authors
Knapic, Sofia; Oliveira, Vanda; Makkonen, Marika; Pinto-Seppä, Isabel; Pereira, Helena
- Abstract
Maritime pine ( Pinus pinaster Ait.) is an important timber and pulpwood species covering about 4 million ha in Portugal, Spain and France. This work studied the cross-sectional distribution of heartwood and sapwood along the stem using 3D modelling on 20 trees. The target was to assess the potential of this species for the industrial production of heartwood sawn products. The maritime pine stems were characterized by wide sapwood of 10 cm, in average, and the presence of heartwood at all height levels with constant diameter up to 35 % tree height, decreasing afterwards. In the radial section, the heartwood follows a circumferential-like shape which changes along the stem. Pith eccentricity index values were low and homogeneous regarding to stem and higher for heartwood. Heartwood cross-sectional shape was constant up to 45 % of total height of the tree and more elongated upwards. The constant heartwood diameter, low taper and pith eccentricity index, and an approximate circular shape up to 10 m height indicated these species' potential to produce solid wood products made out of heartwood.
- Subjects
HEARTWOOD; PINE -- Environmental aspects; ECCENTRICS &; eccentricities; WOOD products; SAPWOOD; PULPWOOD; PRODUCT quality
- Publication
European Journal of Forest Research, 2014, Vol 133, Issue 6, p1007
- ISSN
1612-4669
- Publication type
Article
- DOI
10.1007/s10342-014-0818-2