TAILIEUCHUNG - Báo cáo lâm nghiệp: "Extended length rotation to integrate timber and pine nut production with the conservation of structural diversity in a Pinus pinea (L.) forest"

Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp Original article đề tài: Extended length rotation to integrate timber and pine nut production with the conservation of structural diversity in a Pinus pinea (L.) forest. | Ann. For. Sci. 63 2006 773-781 INRA EDP Sciences 2006 DOI forest 2006059 773 Original article Extended length rotation to integrate timber and pine nut production with the conservation of structural diversity in a Pinus pinea L. forest Fernando MONTESa María J. HERNANDEZb Rafael CALAMAa Isabel CANELLASa a CIFOR-INIA Ctra. de A Coruna km 7 5 28040 Madrid Spain b C Isaac Albeniz 22 28290 Madrid Spain Received 6 July 2005 accepted 8 February 2006 Abstract - The age structure of forests is one of the most important features for sustainable forest management. In this paper an age distribution model is proposed which extends the age range in managed Pinus pinea L. forests. The method termed extended rotation consists of defining the theoretical global structure formed by several management circles gradually reducing the area managed through longer rotations. The extended rotation method has been applied to obtain a target age distribution in a Pinus pinea forest. For this age distribution the timber and pine nut pine nut production has been predicted for the next 40 years and compared with the most commonly applied method in Pinus pinea stands the scattered periodic blocks management system. The application of the extended rotation method leads to a 15 timber yield loss whereas there is a 10 pine nut production increment and the diversity of the age distribution and the basal area heterogeneity increase in the long term. rotation age forest management Pinus pinea pine nut production age structure model Résumé - Revolution étendue pour intégrer la production de bois et la production de pignes avec une conservation de la diversité structurelle dans les forêts de Pinus pinea L. La structure des âges des forêts est un des aspects les plus importants pour la gestion forestiere durable. Dans cet article un modèle de distribution par âges qui permettra d elargir l intervalle d âges représenté en forêts aménagées de Pinuspinea L. est propose. Cette méthode dénommée .

• 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