A Stand-Level Growth and Yield Model System for Shortleaf Pine Plantations in the Western Half of the Southeastern United States: An Initial Attempt

Abstract

A system of growth and yield equations is presented for shortleaf pine (Pinus echinata) plantations using data from across the western half of the Southeastern United States. Data used in model fitting were obtained from Arkansas, Mississippi, Oklahoma, and Tennessee (n = 168 plot measurements). Planting densities ranged from 194 to 1,742 seedlings per acre, and measurement ages ranged from 1 to 30 years. The majority of the measurement ages were ≤16 years of age (n = 152). A mix of cutover and old-field sites were modeled. Predictions of dominant height, trees per acre, basal area per acre, and total volume per acre were obtained directly. Quadratic mean diameter was mathematically derived from the number of trees and basal area per acre estimates. Hopefully, as interest grows, a more complete dataset can become available resulting in an improved model system as compared to this initial modeling effort.

Parent Publication

• Proceedings of the 22nd Biennial Southern Silvicultural Research Conference

Citation

VanderSchaaf, Curtis L. 2024. A Stand-Level Growth and Yield Model System for Shortleaf Pine Plantations in the Western Half of the Southeastern United States: An Initial Attempt. In: Bragg, Don C.; Oswald, Brian P.; Koerth, Nancy E., eds. Proceedings of the 22nd biennial southern silvicultural research conference. Gen. Tech. Rep. SRS-274. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station: 10–19. https://doi.org/10.2737/SRS-GTR-274-Pap3.