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Báo cáo lâm nghiệp: "Sprouting ability and mortality of chestnut (Castanea sativa Mill.) after coppicing. A case study"

Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp Original article đề tài:"Sprouting ability and mortality of chestnut (Castanea sativa Mill.) after coppicing. A case study" | Ann. For. Sci. 62 2005 513-523 INRA EDP Sciences 2005 DOI 10.1051 forest 2005056 513 Original article Sprouting ability and mortality of chestnut Castanea sativa Mill. after coppicing. A case study Fulvio GIUDICIa Andreas ZINGGb a WSL Swiss Federal Institute for Forest Snow and Landscape Research Sottostazione Sud delle Alpi Bellinzona Switzerland b WSL Swiss Federal Institute for Forest Snow and Landscape Research Birmensdorf Switzerland Received 6 December 2004 accepted 16 March 2005 Abstract - To study the sprouting ability of chestnut stands a 60 year old coppice stand in southern Switzerland was coppiced by removing all live and dead shoots. Two years and four years after coppicing surveys of the newly produced shoots was carried out in order to analyse growth and mortality of the young stand and to verify the factors influencing the sprouting ability. The mortality of stools was only 4 the number of produced shoots was with 48 shoots per stool high and the growth of the shoots was remarkable. Stand structure stool density and the dimensions of the old stools neither reduced sprouting ability nor influenced the diameter and height growth but the stump cut quality has a positive effect. Finally height measurement of the dominant shoot on a stool provides a good indicator for the evaluation of the vigour of the regeneration in a chestnut coppice. chestnut coppice silviculture competition shoots and stool mortality Résumé - Production de rejets et mortalité du châtaignier Castanea sativa Mill. après une coupe de taillis. Une étude de cas. Une étude sur la capacité à rejeter de souche du châtaignier Castanea sativa Mill. a été effectuée dans un taillis d environ 60 ans d âge en Suisse au sud des Alpes. La coupe de taillis s est faite par l élimination de tous les arbres vivants et morts. Un inventaire des rejets de souche a été réalisé après deux respectivement quatre ans afin d analyser la croissance et la mortalité du nouveau peuplement et de vérifier les .