Skip to Main Content
Use of the Weibull function to predict future diameter distributions from current plot dataAuthor(s): Quang V. Cao
Source: In: Butnor, John R., ed. 2012. Proceedings of the 16th biennial southern silvicultural research conference. e-Gen. Tech. Rep. SRS-156. Asheville, NC: U.S. Department of Agriculture Forest Service, Southern Research Station. 53-58.
Publication Series: Paper (invited, offered, keynote)
Station: Southern Research Station
PDF: View PDF (532.15 KB)
DescriptionThe Weibull function has been widely used to characterize diameter distributions in forest stands. The future diameter distribution of a forest stand can be predicted by use of a Weibull probability density function from current inventory data for that stand. The parameter recovery approach has been used to “recover” the Weibull parameters from diameter moments or percentiles. The Moment method involves arithmetic or quadratic mean diameter, and diameter variance, whereas the Percentile method includes diameter percentiles. The Hybrid method is a combination of both methods, requiring both diameter moments and percentiles. Results based on data from loblolly pine plantations showed that the three methods involving the predicted quadratic mean diameter performed better than the rest, and that the two methods involving the predicted 31st and 63rd percentiles performed the poorest.
- 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.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationCao, Quang V. 2012. Use of the Weibull function to predict future diameter distributions from current plot data. In: Butnor, John R., ed. 2012. Proceedings of the 16th biennial southern silvicultural research conference. e-Gen. Tech. Rep. SRS-156. Asheville, NC: U.S. Department of Agriculture Forest Service, Southern Research Station. 53-58.
- Growth and Yield Predictions for Thinned and Unthinned Slash Pine Plantations on Cutover Sites in the West Gulf Region
- New methods for estimating parameters of weibull functions to characterize future diameter distributions in forest stands
- Modeling aspen cover type diameter distributions in Minnesota
XML: View XML