New methods for estimating parameters of weibull functions to characterize future diameter distributions in forest stands

Abstract

Diameter distributions in a forest stand have been successfully characterized by use of the Weibull function. Of special interest are cases where parameters of a Weibull distribution that models a future stand are predicted, either directly or indirectly, from current stand density and dominant height. This study evaluated four methods of predicting the Weibull parameters, using data from loblolly pine (Pinus taeda L.) plantations. One method, the CDF Regression, consistently produced better goodness-of-fit statistics than those from the other methods.

Parent Publication

• Proceedings of the 13th Biennial Southern Silvicultural Research Conference

Citation

Cao, Quang V.; McCarty, Shanna M. 2006. New methods for estimating parameters of weibull functions to characterize future diameter distributions in forest stands. Gen. Tech. Rep. SRS-92. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. pp. 338-340