TAILIEUCHUNG - Báo cáo lâm nghiệp: "Studies on European beech (Fagus sylvatica L.). Part 1: Variations of wood colour parameters"

Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp Original article đề tài: "Studies on European beech (Fagus sylvatica L.). Part 1: Variations of wood colour parameters" | Ann. For. Sci. 62 2005 625-632 INRA EDP Sciences 2005 DOI forest 2005063 625 Original article Studies on European beech Fagus sylvatica L. . Part 1 Variations of wood colour parameters Shengquan LIUa b Caroline LoUPa Joseph GRILa Olivier DUMONCEAUDc Anne THIBAUTd Bernard THIBAUTe a Laboratoire de Mécanique et Génie Civil Université Montpellier 2 place E. Bataillon 34095 Montpellier Cedex 05 France b Forest Products Department Anhui Agricultural University Hefei City Anhui Province 230036 China c Oléobois 361 rue Jean-Francois Breton BP 5095 34196 Montpellier Cedex 5 France d CIRAD Département Forêt BP 701 97387 Kourou Cedex French Guiana France e CNRS Guyane Résidence Le Relais 16 avenue André Aron 97300 Cayenne French Guiana France Received 12 August 2004 accepted 15 February 2005 Abstract - Colour parameters of European beech were measured using CIELab system. 103 logs from 87 trees in 9 sites were cut into boards to study the radial variations of wood colour parameters. Both site and tree effects on colour were observed. Patterns of red heartwood occurrence were defined. When excepting red heartwood there was still a highly significant effect of site and tree. Axial and radial variations were small except very near the pith or in red heartwood suggesting possible early selection at periphery under colour criteria. Red heartwood is darker redder and more yellow than normal peripheral wood. Fagus sylvatica L. CIELab colour system solid wood red heartwood Résumé - Etudes sur le Hêtre Fagus sylvatica L. . 1. Variations des paramètres de couleur du bois. Les paramètres de couleur du hêtre européen ont été mesurés à l aide du système CIELab. Cent trois grumes obtenues à partir de 87 arbres abattus dans 9 sites ont été débitées en quartiers afin de déterminer les variations radiales des paramètres de couleur. Des effets site et arbre sur la couleur ont été observés. Des types avec ou sans creur rouge ont été définis. En exceptant le creur rouge on conserve un .

• Báo cáo khoa học
• Báo cáo lâm nghiệp hay
• cách trình bày báo cáo
• báo cáo lâm nghiệp
• công trình nghiên cứu lâm nghiệp
• tài liệu về lâm nghiệp