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Stem form, volume and dry matter production in a twelve-year-old circular Nelder plantation of Populus trichocarpa × deltoides 'Beaupré'
Author(s) -
J. Steenackers,
V. Steenackers,
Joris Van Acker,
Mark I. Stevens
Publication year - 1993
Publication title -
the forestry chronicle
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 49
eISSN - 1499-9315
pISSN - 0015-7546
DOI - 10.5558/tfc69730-6
Subject(s) - circumference , hectare , dry matter , volume (thermodynamics) , bark (sound) , sowing , diameter at breast height , zoology , biology , mathematics , forestry , horticulture , botany , geography , ecology , geometry , physics , quantum mechanics , agriculture
"Model-trees", selected on annual circumference measurements, were sampled at twelve planting distances, with potential growing areas ranging between 9.10 m 2 and 72.00 m 2 .Every tree, up to a top circumference of 30 cm was divided into sections with a length of ± 45 cm. All sections were weighed (fresh and ovendry) and measured. Annual ring width, bark width and heartwood were measured from N to S on every cross section.Results are given for circumference at breast height, timber height, taper, volume and dry matter production per tree or per hectare, at age 12, up to different top circumferences.

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