Site Index Comparisons for Several Tree Species in the Virginia- Carolina Piedmont
The Piedmont of southern Virginia and the Carolinas contains thousands of acres of pine-hardwood forests. The most widespread commercial timber type of the region is the shortleaf pine-hardwood type. The less extensive Virginia pine-hardwood type lies along the western edge of the Piedmont, but reaches its peak development in the adjacent Appalachian Mountain region (fig. 1). The natural forest succession in the Piedmont proceeds from pure pine to mixed pine-hardwood to nearly pure stands of the more tolerant hardwoods (6), and hardwood species gradually crowd out pine and dominate the mixed forests. The tendency of hardwoods to encroach on pine is helped out by man through heavier cutting of pine than of hardwood, and by efficient and widespread forest fire protection.