TAILIEUCHUNG - Báo cáo khoa học: "Ring shake in chestnut (Castanea sativa Mill.): State of the art"

Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp quốc tế đề tài: Ring shake in chestnut (Castanea sativa Mill.): State of the art. | Ann. For. Sci. 59 2002 129-140 INRA EDP Sciences 2002 DOI forest 2002007 129 Review Ring shake in chestnut Castanea sativa Mill. State of the art Patrick Fontia Nicola Macchionib and Bernard Thibautc a WSL Swiss Federal Research Institute Sottostazione Sud delle Alpi Via Belsoggiorno 22 Casella postale 57 6504 Bellinzona Switzerland b Istituto per la ricerca sul legno Consiglio nazionale delle ricerche Via A. Barazzuoli 23 50136 Firenze Italy c Université Montpellier II Science Techniques du Languedoc Laboratoire de Mécanique Génie Civil Place Eugène Bataillon Bât. 13 - Case Courrier 081 34095 Montpellier Cedex 5 France Received 22 January 2001 accepted 1 October 2001 Abstract - Too often chestnut wood Castanea sativa Mill. becomes economically uninteresting because of the high risk of ring shake to which this species is prone. For more than twenty years chestnut ring shake has been the subject of studies undertaken in an effort to understand its underlying causes and mechanisms. Since not all aspects of the phenomenon have been sufficiently studied at the present time ring shake has not yet been completely elucidated. However it is possible to outline a general framework of the phenomenon and advance preliminary ideas on the causes that contribute to the development of this type of fracture. This article summarises the current state of knowledge discusses the possible causes and proposes measures to reduce the risk of ring shake occurrence in chestnut. ring shake Castanea sativa Mill. wood residual stresses mechanical strength Résumé - La roulure du châtaignier Castanea sativa Mill. connaissances actuelles. Trop souvent le bois de châtaignier Castanea sativa Mill. perd son intérêt économique à cause duhaut risque de roulure qui affecte cette espèce. Depuis plus de vingt ans laroulure du châtaignier fait l objet de plusieurs études vouées à la compréhension des causes et des mécanismes qui conduisent à sa formation. A l état actuel tous les aspects n ont .

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