B.C. Ministry of Forests Forest Science Program
			Abstract for Research Report 02

		Variable Growth Intercept Models for Lodgepole Pine in the Sub-Boreal Spruce Biogeoclimatic Zone, British Columbia
		Author or Ministry Contact: Gordon D. Nigh
		Branch: Research
		Subject: Growth and Yield
		Series: Research Report
		Other details: Published 1995, 22 pages.

Abstract

Growth intercept models relate early average height growth of trees (the growth intercept) to site index (top height at breast-height-age 50). Typically, the growth intercept is the average height-growth during the first five growing seasons after the tree has reached breast height. This report presents a variable-growth intercept model that is based on the average height growth above breast-height for any number of years from 1 to 30. This model is more flexible than growth intercept models that use a fixed-growth period such as five years. The variable-growth intercept model has many advantages and few disadvantages over the traditional fixed growth intercept models.

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