Forest Management Commons^™

Research Project No. 15, Predicting Individual Tree Height Of Planted Loblolly And Slash Pines In East Texas, Update: 1987, Cheryl R. Dixon

Informal Project Reports

Updated equations to estimate individual total tree height of loblolly pine ( Pinus taeda L. ) and slash pine ( Pinus elliottii Engelm. ) trees planted on non-old-fields in East Texas are presented. The new revised equations were developed using data from initial measurement and first remeasurement of the East Texas Pine Plantation Research Project Permanent plots ( 1982-1987).

Research Reports No. 14, Stumpage Price Trends Of Pine Sawtimber And Pulpwood In East Texas, 1977-1986, J. David Lenhart, Kent T. Adair

Informal Project Reports

Three different records of past stumpage price performance for Pine sawtimber and pulpwood are presented: Texas Forest Service 1983-86, Timber Mart South l 977-86 and Louisiana Departrnent of Agriculture 1955-86. The first two represent standing timber prices in East Texas, and the latter represents prices over a 32 year period in an adjacent state. In addition, a prognostication on future stumpage price trends is included.

Management And Pest Management Considerations On Droughty Soils: Four Year Results, David Kulhavy, Kenneth G. Watterson, James Kroll, James R. Meeker

Faculty Publications

Four year survival of pines on droughty (Typic Quartzips~mments) soils was best for longleaf pine and Terr-Sorb -treated loblolly pine. Pest considerations include town ants and Nantucket pine tip moths on loblolly pine. Untreated loblolly pine had reduced leader and total height growth anH increased tip moth infestations, compared to Terra-Sorb and clay-slurry treated loblolly pine. Soil texture averaged less than eight percent silt and clay combined in the treatment areas.

Research Report No. 13, Estimating Dry Weight Of Understory Woody Plants In East Texas, Hershel C. Reeves, J. David Lenhart

Informal Project Reports

Equations are presented to estimate the total aboveground ovendry Weight of 19 different species of small woody plants common to understory of East Texas forests. For each of the 19 species, the predicting variable is basal diameter.

Research Report No. 12, Stand Structure And Yield Of Slash Pine Plantations On Non-Old-Fields In East Texas, J. David Lenhart

Informal Project Reports

A diameter distribution yield prediction system is presented for slash Pine ( Pinus elliottii Engelm.) plantations on non-old-fields in East Texas. The system was developed using data from the initial rneasurement of the ETPPRP permanent plots in slash pine plantations.

Research Project No. 11, Stand Structure And Yield Of Loblolly Pine Plantations On Non-Old-Fields In East Texas, J. David Lenhart

Informal Project Reports

A diameter distribution yield prediction system is presented for loblolly pine ( pinus taeda L.) plantations on non-old-fields in East Texas. The system was developed using data from the initial measurement of the ETPPRP permanent plots in loblolly pine plantations.

Research Project No. 7, Estimating The Dry Weight Of Individual Loblolly Pine Trees Planted In East Texas, Thomas J. Wiswell, Jock A. Blackard, J. David Lenhart

Informal Project Reports

Equations are presented to estimate the dry weight in pounds or the wood in the stem and branches of individual loblolly pine trees Planted on site-prepared land in East Texas.

Research Project No. 8, Estimating The Cubic Foot Volume Of Individual Slash Pine Trees Planted In East Texas, Terry L. Hackett

Informal Project Reports

Equations are presented to estimate the cubic foot content of the wood and berk in tile stern and branches of individual slash pine trees Planted on site-prepared land in East Texas. Taper functions are also developed.

Research Project No. 9, Estimating The Green Weight Of Individual Slash Pine Trees Planted In East Texas, Charlie J. Laman

Informal Project Reports

Equations are presented to estimate the green weight in pounds of the wood, bark and needles in the stern and branches of individual slash pine trees planted on site-prepared lend in East Texas.

Research Report No. 10, Estimating The Dry Weight Of Individual Slash Pine Trees Planted In East Texas, J. David Lenhart

Informal Project Reports

Equations are presented to estimate the dry weight in pounds of the wood in the stem and branches of individual slash pine trees planted on site-prepared land in East Texas.

Research Report No. 6, Estimating Green Weight Of Individual Loblolly Pine Trees Planted In East Texas, Thomas J. Wiswell, Jock A. Blackard, J. David Lenhart

Informal Project Reports

Equations ere presented to estimate the green weight in Pounds of the wood, berk and needles in the stem end branches of individual loblolly pine trees planted on site-prepared land in East Texas.

Research Report No. 5, Estimating The Cubic Foot Volume Of Individual Loblolly Pine Trees Planted In East Texas, Thomas J. Wiswell, Jock A. Blackard, J. David Lenhart

Informal Project Reports

Equations are presented to estimate the cubic foot content of the wood and bark in the stem end branches of individual loblolly pine trees planted on site-prepared lend in East Texas. Taper functions are also developed.

Wilderness And Natural Areas In The Eastern United States: A Management Challenge, David Kulhavy, Richard N. Conner

Faculty Publications

"The purpose of this symposium is not to debate either the concept of wilderness or the amount of wilderness appropriate for the United States. These are not debatable issues for present purposes. The Congress has spoken twice. The Wilderness Act of 1964 (PL 88-577) and the amendments of 1975, known as the "Eastern Wilderness Act" (PL 93-622), both set-aside existing areas as wilderness and established procedures for consideration of additions to the wilderness system. The purpose of this symposium is to consider the management of wilderness areas over time. In a very real sense, if those areas established as wilderness …

An Introduction To Wilderness And Natural Area Management, David Kulhavy, D. B. Drummond

Faculty Publications

No abstract provided.

Forest Protection, David Kulhavy, D. B. Drummond

Faculty Publications

No abstract provided.

Visitor Needs And User Impact, H. K. Cordell, M H. Legg, K. E. Cathey

Faculty Publications

No abstract provided.

Introduction To Forest Valuation And Investment Analysis, Steven H. Bullard, Thomas A. Monaghan, Thomas J. Straka

Faculty Publications

Most foresters and forest landowners are aware that money has a time value. A dollar today is worth more than a dollar tomorrow. If you borrow $1,000 from the bank today, you would have to pay back more than $1,000 in 90 days. The term forest economists use for this concept is the t :!me value of money: the closer to today you receive a sum of money, the greater its present value.

Research Report No. 2, Tree Quality, J. David Lenhart, Ellis V. Hunt Jr.

Informal Project Reports

One of two planted loblolly pine trees (Pinus taeda L.) and over one of three (36%) planted slash pine trees (Pinus elliottii Engelm.) on non-old-fields in East Texas have a poor quality stem. For both species, o poor quality stem is three times more likely to occur on trees with crowns in the upper canopy then in the lower canopy.

Research Report No. 3, Estimating Site Index, Jock A. Blackard

Informal Project Reports

Equi'.'ltions to predi ct site index (base age 25 years) for lotilolly pine (P1:1Jt1s toeo'o L.) and slE1sh pine (Pim1s elliatiii Engelrn.) pl6ntotions on non-old-fields in Eest Texfls are presented. Productivity is estimated using plantation age and avernge height of Urn ten tallest trees in the plflntotion. 1

Research Report No. 4, Predicting Individual Tree Height, Jock A. Blackard

Informal Project Reports

Equations to estimate individual total tree height of loblolly pine ( Pinus taeda L. ) and slash pine ( Pinus elliottii Engelm. ) trees Planted on non-old-fields in East Texas are presented.

Research Report No. 1, Fusiform Rust Occurrence, Ellis V. Hunt, J. David Lenhart

Informal Project Reports

Fusiform rust ( Cronartium quercuum (Berk.) Miyabe ex Shirai f. sp. fusiforme) infection occurs on 57% of planted slash pine ( Pinus elliottii Engelm. ) and on 11 % of planted loblolly pine ( Pinus laeda l.) trees on non-old-fields in East Texas. Future utilization of these planted pines may be affected by the rust infection rates.

Establishment Of Permanent Growth And Yield Plots In Loblolly And Slash Pine Plantations, J. David Lenhart, Ellis V. Hunt Jr., Jock A. Blackard

Faculty Publications

Permanent plots have been established in 178 loblolly and 78 slash pine plantations throughout East Texas to study the development of stand structure over time. Analysis of the data will provide methods of estimating growth and yield, mortality, and site productivity to assist managers of these plantations.

Estimating Optimal Thinning And Rotation For Mixed-Species Timber Stands Using A Random Search Algorithm, Steven H. Bullard, Hanif D. Sherali, W. David Klemperer

Faculty Publications

The problem of optimal density over time for even-aged, mixed-species stands is formulated as a nonlinear-integer programming problem with numbers of trees cut by species and diameter class as decision variables. The model is formulated using a stand-table projection growth model to predict mixed-speciesg rowth and stand-structureO. ptimal thinning and final harvest age are estimated simultaneously using heuristic random search algorithms. For sample problemsw ith two speciesr, andom searchm ethodsp rovide near-optimalc uttings trategiesw ith very little computer time or memory. Optimal solutions are estimated for problems with eight initial species/diameter class groups, projected for up to three discrete growth …

A Case For Heuristic Optimization Methods In Forestry, Steven H. Bullard, W. David Klemperer

Faculty Publications

With rising competition for scarce resources, forest managers are increasingly concerned with estimating optimal solutions to complex problems. Heuristic procedures are often useful in solving such problems.

Promoting Soft Mast For Wildlife In Intensively Managed Forests, John J. Stransky, John H. Roese

Faculty Publications

The fruit of woody plants is important as food for wildlife (Martin et al. 1951, Lay 1965). The relation of fruit production to southern forest stand conditions has been explored in only a few studies. Fruit production is greater in forest clearings than in closed forest stands (Lay 1966, Elalls and Alcaniz 1968). In Georgia slash pine (Pinus elliottii) plantations, fruit yields of shrubs are greatest in 4-yeas-old stands, and soil disturbance in site preparation greatly reduces fruit yields (Johnson and Landers 1978). Total fruit production is greatest in 5-year-old bedded loblolly pine (P. taeda) plantations …

Thinning Optimization In Mixed-Species Forests, Steven H. Bullard, W. David Klemperer

Faculty Publications

An approach is summarized for estimating optimal thinning and final harvest age for existing, mixed-species stands. The method involves stand-table projection with upgrowth and mortality equations, formulated as an integer-nonlinear programming problem. Random search methods are proposed for estimating optimal cutting prescriptions. Such solution methods warrant further study in forestry, since their use enables broad application of stand-specific modeling results.

Southern Pine Beetle: Annotated Bibliography, 1868-1982, David Kulhavy, Paul C. Johnson

eBooks

The FAMULUS computerized literature retrieval system was used to produce an annotated bibliography for the southern pine beetle, Dendroctonus frontalis Zimmermann. The bibliography contains 1,235 citations and is cross indexed by AUTHOR, TAXONOMY and KEYS to subject areas.

Soil Response To Clearcutting And Site Preparation In East Texas, J. J. Stransky, L. K. Halls, Kenneth G. Watterston

Faculty Publications

On an east Texas forest site, clearcutting and site preparation did not change the soil pH. Chopping and KG blading significantly reduced organic matter in the surface soil, while burning slightly increased it. Organic matter showed a positive and significant relationship to potassium, calcium and magnesium. All site treatments increased phosphorus and potassium, with the greatest increase on the burned plots. Calcium and magnesium contents also increased with burning but decreased with KG blading. Burning appeared better than the other treatments for maintaining or improving the soil nutrient regime. However, planted loblolly pine seedlings survived and grew best with mechanical …

Stand Risk Rating For The Southern Pine Beetle: Integrating Pest Management With Forest Management, Gordon L. Autry

Faculty Publications

Stand risk rating for the southern pine beetle.

Dendroctonus frontalis Zimm., is a first step toward dealing with a serious but sporadic insect problem. Two approaches, one utilizing readily available resource data, the other employing data obtained from aerial photographs, illustrate application of current knowledge to meet the protection needs of resource management-the primary role of integrated pest management. During a 36-month period in Louisiana, high-risk stands accounted for 13.4 infestations per 1,000 acres, four times the rate of low-risk stands; in Texas high-risk stands accounted for 9 .9 infestations per 1 ,000 acres during 1973-1978, almost five times the …

Wood Products Industries In The Texas Economy, Ricardo Clemente

eBooks

Forests, and the manufacturing plants which make wood products are widely dispersed over eastern Texas . Their dispersion tends to obscure their economic impact. Two federal agencies, the Forest Service of the Department of Agriculture and the Bureau of Census of the Department of Commerce provide most of the available data on forest resources and the forest industry; isolation of some data is difficult, however, because some census categories combine data for non-wood manufacturing with that for wood products . This paper is an attempt to bring together the most pertinent data on the forest industries of Texas.