Equations to estimate site index (index age 25 years) for plantations of loblolly pine (Pinus taeda L.) and slash pine (Pinus elliottii Engelm.) on non-old fields in East Texas have been developed. The height-prediction curves were based on the Richards’ growth function and track well within the range of the data (1-17 years). South. J. Appl. For. 10:109-112, May 1986.
Lenhart, J. David; Hunt, Ellis V. Jr.; and Blackard, Jock A., "Site Index Equations for Loblolly and Slash Pine Plantations on Non-Old Fields in East Texas" (1986). Faculty Publications. 350.