Biodiversity and species rareness are increasingly the focal points for assessment of habitat quality. Managed pine plantations are often viewed as monocultures with little of value beyond their timber crop. The purpose of this study is to assess vegetative biodiversity in the understory of two pine plantations in which different vegetative control mechanisms are being evaluated. Controlled burn, herbicide treatment, and a combination of both are being compared on fertilized and unfertilized plots on two loblolly pine (Pinus taeda) plantations in east Texas. This study will compare species diversity and frequency on untreated and treated plots. One-square meter quadrat samples will be evaluated from 0.04 ha sampling plots within 0.1 ha treatment plots. Species richness will be determined as the number of species in each treatment plot. Shannon Index of Heterogeneity will be determined for each treatment. Comparison of different treatments will be made based on species richness and the Shannon diversity indices. Results for the first growth season after treatment will be presented.
Ott, Betsy; Oswald, Brian; Williams, Hans; and Farrish, Kenneth, "Preliminary Results: Effects of Fertilization, Herbicide Application, and Prescribed Burning on Understory Regeneration on Pine Plantations in East Texas" (2002). Faculty Publications. 511.