Population ecology of loblolly pine Pinus taeda in an old field community.

Density, height, diameter, and age structure of Pinus taeda L. were examined in a 21-year-old abandoned field. A density estimate of 924 trees ha^-1 was obtained, a factor of 17 over that found for the area 14 years earlier. Age frequencies resembled an inverse J-shaped depletion model, with 4.3% of all trees examined being in the 1-year age class. Median ecological longevity was estimated to be 3.2 years. Linear correlations between age, height, and dbh data were also determined. [ABSTRACT FROM AUTHOR]