2009
DOI: 10.1051/forest/2009078
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Un modèle pour l’estimation du volume commercialisable du pin sylvestre dans les principales régions de montagne d’Espagne

Abstract: Abstract• Accurate estimation of stem volume makes it possible to estimate the monetary value of one of the many commodities and services that forests provide to society, i.e. timber.• In the present study a compatible volume system for Scots pine in the major mountain ranges of Spain (the Pyrenees, Southern Iberian Range, Northern Iberian Range, Soria and Burgos Mountains, Central Range and Galician Mountains) was developed with data from 2 682 destructively sampled trees. Several well-known taper functions w… Show more

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Cited by 56 publications
(49 citation statements)
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“…In terms of accuracy, the proposed models show that RMSE ranged from 0.75 to 2.72 depending on the species analyzed; a range that is similar to what has been reported in other softwood and hardwood studies. Taper functions for Scots pine have been widely studied in Spain (Diéguez-Aranda et al, 2006;Crecente-Campo et al, 2009) and Europe (Lappi, 1986;Petersson, 1999;Karlsson et al, 2002). All report small errors, similar to those obtained in this work Stem taper equations in the Spanish Plateau Table 4.…”
Section: Discussionsupporting
confidence: 81%
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“…In terms of accuracy, the proposed models show that RMSE ranged from 0.75 to 2.72 depending on the species analyzed; a range that is similar to what has been reported in other softwood and hardwood studies. Taper functions for Scots pine have been widely studied in Spain (Diéguez-Aranda et al, 2006;Crecente-Campo et al, 2009) and Europe (Lappi, 1986;Petersson, 1999;Karlsson et al, 2002). All report small errors, similar to those obtained in this work Stem taper equations in the Spanish Plateau Table 4.…”
Section: Discussionsupporting
confidence: 81%
“…In hardwoods, the greatest differences appeared between beech and hybrid poplar (F-value = 505.73) while the smallest differences were observed between Pyrenean oak and beech (F-value=41.93). These results are probably due to the strong apical dominance of the hybrid poplar compared to the Pyrenean oak and the beech, and their systematic sylviculThe results for Scots pine were similar to other findings (Crecente-Campo et al, 2009), where small differences in the goodness-of-fit for both procedures were also found. The Stud model provided lower errors for 6 out of the 8 species, with reductions of 0.004 to 0.111 cm in RMSE (or 0.5% to 8.6%).…”
Section: Fitting Phasesupporting
confidence: 89%
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