tailieunhanh - Báo cáo khoa học: "E Hochbichler Universität für Bodenkultur, Institut für Forstökologie; Osterreichische Bundesforste Marxergasse 2, A-1130, Vienna, Austria"

Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp quốc tế đề tài: "E Hochbichler Universität für Bodenkultur, Institut für Forstökologie; Osterreichische Bundesforste Marxergasse 2, A-1130, Vienna, Austria. | Ann Sci For 1993 50 583-591 Elsevier INRA 583 Original article Methods of oak silviculture in Austria E Hochbichler Universitat fur Bodenkultur Institut fur Forstokologie Osterreichische Bundesforste Marxergasse 2 A-1130 Vienna Austria Received 6 January 1993 accepted 2 June 1993 Summary In Austria oak stands occupy an area covering 150 000 ha or 4 of the total forest area. Half of the oak stands are managed as coppice or coppice with standards and half are managed as high forest. During the last 2 decades there has been a remarkable increase in developing young oak stands. The interest in managing suitable forest areas for oak is apparently growing. Therefore regeneration methods timely and proper management and thinning regimes will be very important in the near future. As a result of different growth performances it is necessary to determine different production targets and rotation cycles. For this reason treatment programmes have been developed dependent on selected sites considering biological ecological and technical parameters to achieve high economic yield. Investigations into oak stands of different age classes have already shown the importance of timely cleaning tending and continuous thinning during the first third of the rotation cycles. Various treatment programmes and practical knowledge relating to regeneration tending crop selection and thinning have been discussed. silviculture oak high forest system coppice with standards coppice Resume Methodes de sylviculture du chêne en Autriche. La chênaie occupe en Autriche une superficie d environ 150 000 ha soit près de 4 de la surface forestiere totale. La moitié des peu-plements de chênes est traitée en taillis OU taillis-sous-futaie I autre moitié est aménagée en futaie. Au cours des 2 dernières décennies II y a eu un accroissement remarquable de création de jeunes peuplements de chênes. L interet pour 1 aménagement des stations favorables aux chênes est appa-remment grandissant. Pour cette raison les .

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