A tree survival equation and diameter growth model for loblolly pine based on the self-thinning rule.
Abstract
A system of equations was developed to describe the reciprocal effects of stand density and quadratic mean diameter through time, using data from a loblolly pine (Pinus taeda) plantation in Louisiana. These equations were based on the self-thinning rule, which regulates an overcrowded population by imposing a maximum mean tree size for a given stand density. The system explained 98% of variations in surviving tree number and quadratic mean diameter, and should provide reasonable extrapolation.