Circumferential variation of heartwood and stem quality in maritime pine stems

S. Knapic (Corresponding Author), V. Oliveira, Marika Makkonen, Isabel Pinto-Seppä, H. Pereira

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

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
Original languageEnglish
Pages (from-to)1007-1014
JournalEuropean Journal of Forest Research
Volume133
Issue number6
DOIs
Publication statusPublished - 2014
MoE publication typeA1 Journal article-refereed

Fingerprint

Pinus pinaster
heartwood
stem
stems
eccentricity
industrial production
pith
sapwood
timber
pulpwood
wood products
Portugal
modeling
France
Spain
index

Keywords

  • heartwood
  • forestry
  • maritime pine
  • sawn products
  • taper
  • within-tree variation
  • pith eccentricity index

Cite this

Knapic, S. ; Oliveira, V. ; Makkonen, Marika ; Pinto-Seppä, Isabel ; Pereira, H. / Circumferential variation of heartwood and stem quality in maritime pine stems. In: European Journal of Forest Research. 2014 ; Vol. 133, No. 6. pp. 1007-1014.
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title = "Circumferential variation of heartwood and stem quality in maritime pine stems",
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",
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author = "S. Knapic and V. Oliveira and Marika Makkonen and Isabel Pinto-Sepp{\"a} and H. Pereira",
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Circumferential variation of heartwood and stem quality in maritime pine stems. / Knapic, S. (Corresponding Author); Oliveira, V.; Makkonen, Marika; Pinto-Seppä, Isabel; Pereira, H.

In: European Journal of Forest Research, Vol. 133, No. 6, 2014, p. 1007-1014.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Circumferential variation of heartwood and stem quality in maritime pine stems

AU - Knapic, S.

AU - Oliveira, V.

AU - Makkonen, Marika

AU - Pinto-Seppä, Isabel

AU - Pereira, H.

PY - 2014

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N2 - 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

AB - 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

KW - heartwood

KW - forestry

KW - maritime pine

KW - sawn products

KW - taper

KW - within-tree variation

KW - pith eccentricity index

U2 - 10.1007/s10342-014-0818-2

DO - 10.1007/s10342-014-0818-2

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