Skip to main content

Relative Accuracy of a New Base-Age Invariant Site Index Model

Buy Article:

$29.50 plus tax (Refund Policy)

Abstract:

A new base-age invariant site index model was developed based on the constrained version of the Chapman-Richards function. It was compared with that of Goelz and Burk's (1992) in terms of relative accuracy and average bias across a range of potential base ages. The data format for fitting the above models was also simplified. Comparing the models on a set of white spruce (Picea glauca [Moench] Voss) stem analysis data indicated that the choice of predictor age influences the models' accuracy and bias. Except for very young ages, the new model performed as well as that Goelz and Burk's (1992) model in relative accuracy. For. Sci. 40(2):341-348.

Keywords: Biological growth function; average bias; root mean squared errors; the Chapman-Richards growth function

Document Type: Journal Article

Affiliations: Natural Resources Canada, Ontario Region, 1219 Queen Street East, Sault Ste. Marie, Ontario, Canada P6A 5M7

Publication date: May 1, 1994

More about this publication?
  • Membership Information
  • ingentaconnect is not responsible for the content or availability of external websites
saf/fs/1994/00000040/00000002/art00011
dcterms_title,dcterms_description,pub_keyword
6
5
20
40
5

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more