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Analytical estimation of branchwood volume in sugar maple, linked to branchiness |
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| Authors: | Frédéric Raulier Chhun-Huor Ung Jean Bégin |
| Affiliation: | (1) Natural Resources Canada, Canadian Forest Service, Laurentian Forestry Centre, 1055 du P.E.P.S., P.O. Box 3800, Sainte-Foy, Quebec G1V 4C7, Canada Tel: (418) 648-4933; Fax: (418) 648-5849; e-mail: Raulier@cfl.forestry.ca, CA;(2) Département des sciences forestières, Faculté de foresterie et géomatique, Université Laval, Québec, G1K 7P4, Canada, CA |
| Abstract: | An analytical link is proposed between branchwood volume and branchiness. A segmented linear model with one parameter is used to describe the branch basal area density along the tree bole and integrated to find a function describing the cumulative branch basal area. It appears that the bases of insertion of the branches defining the base of the light crown correspond to the maximum branch basal area density along the bole. This function is then used together with an individual branch volume equation to find a model that estimates branchwood volume. This model is calibrated with data gathered in 15 stands dominated by sugar maple (Acer saccharum Marsh.) in southern Quebec. A comparison is made with other models of branchwood volume found in the literature. Received: 22 August 1997 / Accepted: 9 February 1998 |
| Keywords: | Acer saccharum Branchiness Branch biomass Light crown |
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