Pitch Pine

Like the Phoenix of Egyptian mythology, pitch pines often depend on fire for their continuation, as seedings rise from the ashes. Although killed by heat, these pines quickly seed-in following a holocaust on burned-over lands of shallow, dry, charred, and scarred soils. Competing hardwoods also succumb in the fire. That only some pitch pine trees are serotinous suggests this to be an inherited characteristic.29 The tree has fantastic restorative ability following fire. Even when heat kills all...

Root Grafts

Although natural root grafts between white pine trees stimulate growth of residual stems following thinning, the prevalence of such grafts is unknown. As roots of harvested stems continue to absorb soil moisture and nutrients and to compete with pioneer vegetation endeavoring to become established, growth improves for residual stems grafted to a harvested tree. Thus, water consumption by residual trees adjacent to openings in a canopy made by thinning keeps such clearings relatively barren of...

Shortleaf Pine

There is no typical site for shortleaf pine. Like most forest trees, it grows best on moist but well-drained, or mesic, sites. While occurring with many other species, shortleaf pine also grows in pure stands from the West Gulf Coastal Plain to the northeastern extremity of the region. Often, this pine is the initial tree to seed-in on old fields freshly abandoned from agriculture. Favorable weather must accompany good seed crops for this to occur. Oaks, as a rule, enter old-field stands when...

Eastern redcedar

Eastern redcedar, not a true cedar but a juniper, predominates in part of the Ozark Highlands of Arkansas and the glades of the Nashville Basin in central Tennessee. The Cedar Brakes of central Texas consist of closely related species, Ashe and Pinchot junipers. These Juniperus species are among the most alkali-tolerant of drought-hardy trees.27 Eastern redcedar is of course not limited to these calcareous outcrop areas. It occurs in the dominant canopy and in the understory of almost every...

The Regions Forests

Florida Pine Scrub

Biotic factors influencing the forest involve animals insects, birds, mammals, etc. , plants fungi, competing vegetation, etc. , and, of course, the trees themselves. In this book, trees are our principal concern, though other biotic components play significant roles in the development of forests. More than 60 forest-cover types have been recognized by the Society of American Foresters as occurring in the South. These are generally grouped into nine classes. The oak-hickory-pine type, the most...

Disruptions To The Coastal Plain

Loessal Mississippi

The Mississippi Delta A physiographic feature that breaks into the general pattern of the Gulf Coastal Plain is the lower alluvial valley of the Mississippi River, called the Delta locally and in forestry literature. It interrupts the prevailing east-west orientation of the Coastal Plain with a north-south strip of alluvial soils bearing distinctive bottomland hardwood forests. Pioneering settlers seemed to have had an understanding of world geography, especially the similarity of the lower...