Skip to Main Content
Precision and the probability of misclassification in site index estimationAuthor(s): F. Thomas Lloyd; William Hafley
Source: Forest Science
Publication Series: Scientific Journal (JRNL)
Station: Southern Research Station
Download Publication (317.0 KB)
DescriptionThis work presents an estimate of variance for a site index predictor. The methodology was tested on height/age data for loblolly pine from the Coastal Plain of the southeastern United States. We quantified the effects of stand age, base age, and sample size on the variance of site index. The derived variance was used in the development of a measure of the probability of misclassification. We used this measure to show the effects of site index class interval width, stand age, base age, and sample size on classification performancoe f this site index predictor. The results show that changing the width of class intervals or the value of stand age has the greatest effect on the classification performance. The methods have practical value as guides to selecting sample sizes that produce uniformly reliable site index predictions.
- You may send email to email@example.com to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
CitationLloyd, F. Thomas; Hafley, William. 1977. Precision and the probability of misclassification in site index estimation. Forest Science. 23(4): 493-499.
KeywordsCumulative height curves, sample size, stem analyses, polymorphic curves, variance, base-age invariance
- How many tree heights should you measure for natural, Atlantic Coastal Plain loblolly site Index?
- Development of a well-behaved site index equation: jack pine in north central Ontario
- Size-density metrics, leaf area, and productivity in eastern white pine
XML: View XML