TAILIEUCHUNG - Báo cáo lâm nghiệp: "Successful under-planting of red oak and black cherry in early-successional deciduous shelterwoods of North America"

Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp Original article đề tài: Successful under-planting of red oak and black cherry in early-successional deciduous shelterwoods of North America. | Ann. For. Sci. 63 2006 823-831 INRA EDP Sciences 2006 DOI forest 2006065 823 Original article Successful under-planting of red oak and black cherry in early-successional deciduous shelterwoods of North America Alain Paquette André Bouchard Alain Cogliastro Institut de recherche en biologie végétale IRBV Groupe de recherche en écologie forestière interuniversitaire GREFi Université de Montreal 4101 rue Sherbrooke Est Montréal Québec Canada H1X 2B2 Received 28 February 2006 accepted 12 May 2006 Abstract - Underplanting early-successional forest stands with red oak and black cherry was tested as a way of improving productivity on abandoned agricultural land of North American temperate deciduous forests. A partial release treatment was applied during the third growing season and compared to a control. The growth increment after six years is analyzed with respect to treatment and competition layers. Although the release treatment reduced competition at all vegetation layers growth was mostly determined by the density of the upper layer. Deer herbivory was not increased by the release. The release treatment succeeded in significantly increasing available light for the duration of the study while the understory recovered quickly. Planted trees particularly red oak responded well to the release treatment. Results substantiate the need for dynamic silviculture in sensitive rural landscapes where conservation of forest structure is important. under-planting light early-successional forests deer herbivory thinning treatment Résumé - Plantation sous-couvert de chêne rouge et cerisier tardif en forêt décidue pionnière d Amérique du Nord. Des chênes rouges et cerisiers tardifs ont été introduits sous couvert de jeunes peuplements d origine agricole dans une étude visant l amélioration de la productivité de peuplements pionniers de la forêt décidue tempérée d Amérique du Nord. Un dégagement partiel appliqué au cours de latroisième saison de croissance est comparé à 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