B.C. Ministry of Forests Forest Science Program
			Abstract for Research Report 03

		Compatibility Improvements and Bias Reduction in Height-Age Models
		Author or Ministry Contact: Gordon D. Nigh
		Branch: Research
		Subject: Growth and Yield
		Series: Research Report
		Other details: Published 1995, 10 pages.

Abstract

Inconsistencies between breast height age and adjustments for sectioning bias in stem analysis data may cause a bias in height-breast height age prediction systems. A further bias may be introduced when applying the model if the breast height age of the tree is taken to be the ring count at breast height. These biases can be removed by making the model and data compatible with the definition of breast height age.

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