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A disaggregation function, relative size-growth (RSG) function, is proposed and developed to distribute stand volume growth to a list of individual trees. The relative size-growth (RSG) function is formulated as a quadratic equation relating relative tree growth to relative tree size in a stand. The shape of the RSG function is linear, convex, or concave depending on initial stand conditions and structure. A recursive system of equations is developed to predict the three coefficients of the RSG function using initial stand density, mean tree size and coefficient of variation of tree size distribution as predictor variables. This disaggregation function determines within-stand growth of individual trees and simulates stand development and dynamics. The RSG function provides a biologically based link between whole-stand and individual tree resolution models.

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Title:
Disaggregating Stand Volume Growth To Individual Trees
Creator:
Zhang, L.; Moore, J.A.; Newberry, J.D.
Date Created (ISO Standard):
1992-03-01
Description:
A disaggregation function, relative size-growth (RSG) function, is proposed and developed to distribute stand volume growth to a list of individual trees. The relative size-growth (RSG) function is formulated as a quadratic equation relating relative tree growth to relative tree size in a stand. The shape of the RSG function is linear, convex, or concave depending on initial stand conditions and structure. A recursive system of equations is developed to predict the three coefficients of the RSG function using initial stand density, mean tree size and coefficient of variation of tree size distribution as predictor variables. This disaggregation function determines within-stand growth of individual trees and simulates stand development and dynamics. The RSG function provides a biologically based link between whole-stand and individual tree resolution models.
Subjects:
research statistics
Source:
Intermountain Forest Tree Nutrition Cooperative. 1992. Supp. Report No. 5; Disaggregating Stand Volume Growth To Individual Trees. FWR, Univ. of Idaho, Moscow.
Source Identifier:
Disaggregating_Stand_Volume_Growth_to_Individual_Trees_IFTNC_1992
Type:
Text
Format:
application/pdf

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Preferred Citation:
"Disaggregating Stand Volume Growth To Individual Trees", Intermountain Forestry Cooperative, University of Idaho Library Digital Collections, https://www.lib.uidaho.edu/digital/iftnc/items/iftnc4794.html
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This document is provided by the University of Idaho Library for use by University of Idaho students, staff, and faculty. All rights to the document linked from this metadata belong to the author, rights holder, and/or provider. For more information contact The Intermountain Forestry Cooperative, https://www.uidaho.edu/cnr/ifc
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http://rightsstatements.org/vocab/InC-EDU/1.0/
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