Skip to Main Content
A mixed-effects height-diameter model for cottonwood in the Mississippi DeltaAuthor(s): Curtis L. VanderSchaaf; H. Christoph Stuhlinger
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. 352-358.
Publication Series: Paper (invited, offered, keynote)
Station: Southern Research Station
PDF: View PDF (507.7 KB)
DescriptionEastern cottonwood (Populus deltoides Bartr. ex Marsh.) has been artificially regenerated throughout the Mississippi Delta region because of its fast growth and is being considered for biofuel production.This paper presents a mixed-effects height-diameter model for cottonwood in the Mississippi Delta region. After obtaining height-diameter measurements from the plot/stand of interest, a mixed-effects model can be calibrated often improving height estimates relative to an uncalibrated fixed-effects model. When using an independent validation dataset, the calibrated mixed-effects height-diameter model vastly improved height predictions compared to a completely fixed-effects model. When using only one tree in calibration, bias decreased from -1.1164 m to -0.1334 m while the mean square error (MSE) decreased from 2.3421 to 0.4869 for the fixed-effects and mixed-effects models, respectively. When using three trees in calibration, the bias and MSE were reduced to -0.0495 m and 0.3012. The use of three trees in model calibration will likely provide a reasonable compromise between predictive ability and field sampling times.
- You may send email to firstname.lastname@example.org 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.
CitationVanderSchaaf, Curtis L.; Stuhlinger, H. Christoph. 2012. A mixed-effects height-diameter model for cottonwood in the Mississippi Delta. 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. 352-358.
- Early response of interplanted nuttall oak to release from an eastern cottonwood overstory
- Evaluating growth effects from an imidacloprid treatment in black willow and eastern cottonwood cuttings
- Estimating Leaf Nitrogen of Eastern Cottonwood Trees with a Chlorophyll Meter
XML: View XML