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Browsing by Author "Parker, Robert C."

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    Site and Yield Information Applicable to Virginia’s Hardwoods: A Review
    Evans, Thomas F.; Burkhart, Harold E.; Parker, Robert C. (Virginia Tech. Division of Forestry and Wildlife Resources, 1975)
    In 1966 Virginia had a hardwood growing stock volume of 10.5 billion cubic feet and a hardwood sawtimber volume of almost 26. 3 billion board feet. Hardwood timber was distributed over more than 12.8 million acres of commercial forest land in the state (Knight and McClure, 1967). This hardwood timber is converted into a multitude of finished products. Hardwoods comprise well over one-half of the total volume in Virginia's multi-million dollar forest products industry each year. Thus the hardwood resource is very important to the welfare of the citizens of the Old Dominion. Despite the importance of hardwoods in Virginia's timber industry, most hardwood stands have not been placed under intensive forest management. An essential ingredient of a forest management program is information on the yields of timber products which can be achieved by the various tree species on different sites. Yield and site data which can be applied to Virginia's hardwoods are still relatively scarce. The purpose of this paper is to survey the primary works on the yields of hardwood species found in Virginia and to present results from studies on the relations of hardwood growth to various site conditions.
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    Yields of Old-Field Loblolly Pine Plantations
    Burkhart, Harold E.; Parker, Robert C.; Strub, Mike R.; Oderwald, Richard G. (Virginia Tech. Division of Forestry and Wildlife Resources, 1972-12)
    Loblolly pine (Pinus taeda L.) is one of the most important commercial species to the forest industries in the South, with a range extending through the Piedmont and the Atlantic and Gulf Coastal Plains from Maryland to eastern Texas. Although there is a great deal of published information on the growth and yield of loblolly pine, much of the data for these studies has been collected in the southeastern part of the natural loblolly pine range and published results have generally involved only volume units such as board feet, cubic feet, or cords. Consequently, a cooperative yield study between the Division of Forestry and Wildlife Resources at Virginia Polytechnic Institute and State University and several industrial forestry organizations was initiated to gather yield information which would be primarily applicable to the Virginia area. The scope of this study included per-tree and peracre data for the various volume units as well as for green and dry weight. This paper presents per-acre yield information in volume and weight units for old-field loblolly pine plantations.