Browsing by Author "McElwee, Robert L."
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- The 1977 Virginia Outdoor Recreation SurveySpittle, Gerald D.; Buhyoff, Gregory J.; Davy, John R. Jr.; McElwee, Robert L. (Virginia Tech. Division of Forestry and Wildlife Resources, 1978)The Virginia Commission of Outdoor Recreation coordinated through the Planning District Commissions an inventory of statewide recreation resources between April, 1977 and September, 1977. The School of Forestry and Wildlife Resources, Virginia Polytechnic Institute and State University, transferred the data into a computerized retrieval system from which this summary booklet was derived. This inventory is an integral part of the Virginia Outdoors Plan Information System. Its primary purpose is to provide information enabling the Commission to formulate and write the statewide comprehensive outdoor recreation plan. It is also envisaged that this data be used for other planning activities, such as those conducted by federal and state agencies or the 22 Planning District Commissions in Virginia, as well as for various research activities, special studies, and teaching. The purpose of this publication is threefold. The first is to encourage further use of the data it contains by informing the public of the specific type of information available. The second is to present a comprehensive set of data which can be used to answer general inquiries about the nature and distribution of recreation resources in the Commonwealth of Virginia. Finally, it is to advise that this data is available in other forms which may better suit individual needs but which would be too numerous to publish in this bulletin.
- Cultural, Management and Economic Research Needed To Assist the Non-Industrial Private Forest Landowner in the Southeastern U.S. - a Problem Analysis -McElwee, Robert L.; Hall, Otis F. (Virginia Tech. Division of Forestry and Wildlife Resources, 1982)Much attention has been directed in recent years to finding ways of increasing the productivity of private non-industrial forest land ownerships in the South. Justification for the interest directed towards this ownership lies in its collective size, physical accessibility, potential for intensive management and the annual erosion of land base and growing stock of southern forests. Non-industrial private owners collectively are a most influential group, in position to shape the future posture of forestry and the quantity and quality of bbenefits to be obtained from forest lands. The manner in which these landowners husband their ownerships will determine progress made in arresting soil erosion, providing adequate supplies of potable water, maintaining a wildlife resource for consumptive and non-consumptive uses, continuing forest environments as a locale for recreational uses, and assuring a continuing supply of timber at reasonable costs for an expanding population. There is little doubt concerning the need to encourage greater production from these lands. By its sheer size, the non-industrial private ownership is the key to achieving gains in forest production. This ownership controls more than 70 percent of the forest land in the South. These owners must provide the major means of meeting projected increased needs in the goods and services derived from forest lands. As later paragraphs show, anticipated future needs surpass present productivity for southern pine. The productive potential exists tor the South to meet anticipated future needs, but to do so the non-industrial private ownerships must increase the amount of forest land supporting southern pines and must husband more intensively the southern pine forest. Non-industrial private landowners are a diverse group. They vary widely in their methods and reasons for acquiring forest properties, objectives of ownership, knowledge of forest management, financial capabilities and interests in enhancing the productive and financial values of their properties. Motivation is often lacking for them to enhance the value of their ownerships by increasing production. To define research priorities to assist these owners, a cooperative effort was initiated by the Southeastern Forest Experiment Station of the U.S. Forest Service, the Virginia Division of Forestry and the School of Forestry and Wildlife Resources at Virginia Tech. Some funding was provided by the Station and a Problem Analysis Team organized. This team met three times during 1981, planned the approach taken, reviewed and made suggestions on the sequence of manuscript revisions, and participated in the ranking of research priorities. Suggestions, preliminary manuscript review, and research priority ranking were solicited from a Technical Review Panel (See Appendix A). The resulting analysis presented here is a synthesis of the viewpoints of individuals representing governmental agencies, associations, wood-using industry, private landowners and forestry educators throughout the southern pine region. The prime objective is to assure an adequate supply lo southern pine to meet projected needs, while assuring non-industrial private landowners that investments in forest production are financially sound.
- Development of a computerized seed orchard inventory-monitoring system and analysis of seed orchard productivity variablesMerkle, Scott Arthur (Virginia Polytechnic Institute and State University, 1982)A computer program package for use with the southern pine seed orchard Inventory-Monitoring System (IMS) was developed and tested using 1980 and 1981 cone crop data collected from Weyerhaeuser's loblolly pine seed orchard at Magnolia, Arkansas. The Computerized IMS, written in Fortran, is accompanied by a user's guide containing data entry instructions. The IMS package includes one predictive program and two programs designed to interpret actual harvest data and make it available for the computation of predictions for future crops. The predictive program utilizes strobilus survival data from sample trees and clonal estimates for cone analysis-derived variables to compute clonal cone and seed yield predictions. Cone yield predictions calculated by the Computerized IMS for the 1980 and 1981 crops indicated that it has the potential for producing useful production estimates. Investigations of variance within the seed orchard having an impact on IMS predictions centered on clonal, age-class (within-clone), annual, orchard location and with in-crown effects on cone analysis-derived variables, cone efficiency and flowers-per-tree. Analysis of clonal variance indicated that seed potential and germination efficiency were under strong genetic control compared to the other characters. Annual clonal stability was high enough for clonal seed potential and seed efficiency to make useful regression models possible for estimating these variables without complete cone analysis. Clonal cone efficiencies displayed low annual stability, discouraging the use of stratified clones to estimate productivity, since clones could change productivity classes from year to year. Within-crown variation was not well-defined for most variables due to clone-crown sector interaction. However, cones were concentrated in the middle one-third of the crown and empty seed percentages were found to be highest in the north crown quadrant. The study indicated that clone-by-clone monitoring of seed orchard production, while the most expensive option, will produce the most reliable and useful yield predictions.
- Forest pest control : a training program for the certification of pesticide applicatorsMcElwee, Robert L.; Coartney, James S.; Weidhaas, J. A. (John A.) (Virginia Polytechnic Institute and State University. Extension Division, 1979)
- Forest products directoryMcElwee, Robert L.; Frame, Elvin D. (1975-07)Identifies wood products industries in Virginia, their location, type of industry by classification, method by which timber is is purchased, species purchased, and products sold.
- Two-thirds of VirginiaMcAlister, J. Douglas; McElwee, Robert L. (Virginia Cooperative Extension Service, 1984)A brief overview of Virginia's forests.