Forest Management Commons^™

Project Report No. 38, Average Observed Fusiform Rust Transition Paths, O. Schabenberger, T. G. Greroire, J. David Lenhart

Informal Project Reports

fusiform rust ( Cronatrium quercuum [Berk. ] Miyabe ex Shirai f . sp . tusiforme L. ) is a devastating disease in loblolly ( Pinus taeda L. ) and slash ( Pinus elliottii Englem. ) pine plantations throughout the southern United States . Pine stems infected with fusiform rust are subject to hazards such as wind breakage, and if a pine stem with a gall on it does survive to harvest, utilization of the infected stem piece may be down-graded from possible lumber to probable pulpwood or maybe completely discarded .

Research Report No. 37, Site Index Equations For Loblolly And Slash Pine Plantations In East Texas, Update : 1995, Glen Dirksmeyer, Kelly Scott, Curtis Vanderschaaf, Raymond Worthy

Informal Project Reports

Site index prediction equations for loblolly ( Pinus caeda L. ) and slash ( Pinws elliottii Engelm. ) pine plantations in Ease Texas have been previously developed and published by: -

Lenhart , J. D., E. V. Hunt, Jr. and J. A. Blacka7d. 1986. Site index equations for loblolly and slash pine 1 plantations on non-old- field in East Texas. South. J. I Appl. For. 10(2) :109-112.

Vaughn, A. B., J. Lapongan and J. D. Lenhart. 1993. Site index equations for loblolly and slash pine plantations in East Texas - Update: 1993. ETPPRP Report 27. College of Forestry. SFASU. 6 …

Research Report No. 35, Pine And Hardwood Stumpage Price Trends For Lumber/Plywood ... Chip-N-Saw ... Pulpwood Timber In East Texas And Louisiana Through 1994, Kelly B. Scott, J. David Lenhart

Informal Project Reports

Past performance of timber stumpage prices can be informative:

• Develop reasons for past t rends.

• Provide basis for prognostications as to future trends.

Research Report No. 34, Influence Of Soil And Topography Features On Ability Of Land In East Texas To Grow Loblolly And Slash Pine Plantations, H. Alexis Ross, Andrew J. Londo, J. David Lenhart

Informal Project Reports

This research paper is specifically designed to assist East Texas agricultural landowners by attempting to provide some of the lnformation that may be needed for decisions concerning whether or not to establish. grow and harvest pine trees. Specifically, it provides information that may be useful to ascertain the ability of land In East Texas to produce planted loblolly ( Anus taeda L)and slash ( Pinus elliottii Engelm. ) pine trees Irrespective of present land use.

Research Report No. 36, Yield Prediction Spreadsheets Written In Lotus 1-2-3 ™ For Pcs And Excel™ For Macintoshes, Matthew W. Mcbroom, J. David Lenhart

Informal Project Reports

Recently developed stand-level yield prediction functions for loblolly and slash pine plantations in East Texas have been incorporated Into computerized spreadsheets.

Project Report No. 39, Observed Average Characteristics Of Unthinned Loblolly And Slash Pine Plantations In East Texas, Kelly B. Scott, J. David Lenhart

Informal Project Reports

In September, 1994, the ETPP'RP1 published Report 31 (Observed growth rates of loblolly and slash pine plantations in East Texas). The purpose of that report was to tabulate four observed average annual growth rates: • Quadratic mean diameter, • Stand height, • Basal area per acre and • Cubic feet per acre of unthinned East Texas loblolly and slash pine plantations.

Research Report No. 32, Trends Of Non-Straight Tree Stems In Loblolly And Slash Pine Plantations In East Texas, 1985-1994, H. Alexis Ross, J. David Lenhart

Informal Project Reports

Trees from East Texas loblolly ( Pinus taeda L. ) and slash ( Pinus effiottii Engelm. ) pine plantations are one of the sources of raw material for conversion into products such as paper, veneer and lumber by East Texas forest product mills. The utilization of the planted trees may depend on various biological and economical factors. Factors such as tree size, tree condition, stumpage prices and interest rates can play a role in the merchandizing process.

One of the factors, tree condition, may be affected by tree crown position in canopy, incidence of disease, single stem and straightness of …

Research Report No. 31, Observed Growth Rates Of Loblolly And Slash Pine Plantations In East Texas, H. Alexis Ross, J. David Lenhart

Informal Project Reports

Of the approximately 11.2 million acres of forest in East Texas, about 2.5 million acres have been planted with loblolly pine trees ( Pinus taeda L. ) and 500,000 acres with slash pine trees ( Pinus elliottii Engelm. ). These plantations are owned by public, industrial and non-industrial private entities with industrial ownership dominating. Even though most pine plantations in East Texas are relatively young (20 years or less), plantation information is needed for management decision-making.

Research Report No. 30, A Guide For Timing Initial Tree Harvests In East Texas Loblolly And Slash Pine Plantations, J. David Lenhart, H. Alexis Ross

Informal Project Reports

In East Texas, there are approximately 3 million acres of loblolly ( Pinus taeda L. ) and slash ( Pinus elliottii Engelm. ) pine plantations. Most of these plantations, which represent about 25% of the forested area of East Texas, have been planted since 1970.

As these planted trees age, East Texas foresters may be considering initial timber harvesting decisions for unthinned plantations. Often the timing of the harvests can be determined by considering combinations of economic and non-economic values, utilization standards and timber growth' factors. However, in some situations, it may be appropriate to ascertain the proper timing by …

Research Report No. 29, Site Index Equations For Loblolly And Slash Pine Plantations In East Texas, Update: 1994, Jason Black, Chad Holton, Billy Johnson, Jennifer Key, Mark Kotal, Daryl Lawerence, Jon Mastin, Jack Ridinger, Janet Russell

Informal Project Reports

In 1986, equations to estimate site index in loblolly and slash pine plantations in East Texas were published (Lenhart et al. 1986). Subsequently, updated site index prediction equations were published in 1993 (Vaughn et al. 1993). Both sets of equations were developed using data collected from East Texas Pine Plantation Research Project (ETPPRP) permanent plots distributed throughout East Texas. The site index prediction equations were designed to estimate tree height 25 years from planting, ie., index age = 25 years.

Data for the 1986 and 1993 site index prediction equations were from measurements of the ETPPRP permanent plots during 19182-1984 …

Forval A Software Package For Forestry And Natural Resources Project Valuation, Thomas J. Straka, Steven H. Bullard

Faculty Publications

FORV(AFLO ResVt ALuationis) an interactive, user-friendly computeprr ogramfo r discountedc ash flow analysis of forestry andn atural resource investments.M anyfo rest economics applicationsa re includeda nde mphasiiss on the nonindustrial privatef orest sector; howeveri,n dustrya ndp ublics ector applications are easily performewdi th the programC. alculations includen et presentv alue, equivalenta nnuali ncome,b enefit/ cost ratio, internal rate of return, future value, sinking funds, installmentp aymentsa, ndl and expectationv alue. Thep rogram also allows the user to accountf or amortizationo f reforestation costs andd epletiona llowancesI. t includess elf-contained instructionsa ndw ill generatet he details of key calculations. FORVsAhLou ldp …

Research Report No. 28, Tree Content And Taper Functions For Planted Loblolly And Slash Pine Trees In East Texas, Update: June 1993, Revised: September 1993, Jaffirin Lapongan, A. Beth Vaughn, J. David Lenhart

Informal Project Reports

In 1987, tree content and tree taper functions for individual live standing planted loblolly and slash pine trees in East Texas were published 1. These equations were developed based on stem analyses of felled trees located adjacent to East Texas Pine Plantation Research Project (ETPPRP) permanent plots throughout East Texas. The 1987 report was based on 65 loblolly and 34 slash pine trees sampled during 1986. For both species, dbh (0) values ranged from about 2-12 inches and total height (H) values varied from about 10-60 feet.

Research Report No. 27, Site Index Equations For Loblolly And Slash Pine Plantations In East Texas, Update: 1993, A. Beth Vaughn, Jaffirin Lapongan, J. David Lenhart

Informal Project Reports

In 1986, equations to estimate site index in loblolly and slash pine plantations in East Texas were published. These equations were developed using data collected from East Texas Pine Plantation Research Project (ETPPRP) permanent plots distributed throughout East Texas. The site index prediction equations were designed to estimate tree height 25 years from planting, ie., index age = 25 years.

In the 1986 study, only data recorded during the first measurement cycle of the ETPPRP (1982- 1984) were available for analysis. Pairs of observed plantation age and a'verage !otal height of the ten tallest trees values were accessible from 150 …

Forest Pest Management On Typic Quartzipsamments: A Management Dilemma, R. R. Cahal, David L. Kulhavy, W. G. Ross, W. D. Tracey, W. D. Hacker

Faculty Publications

Pine plantations on Typic Quartzipsamments in East Texas are difficult to establish. Forest management options following clearcutting are limited. A eight year regeneration study of the growth and survival of loblolly, Pinus tuedu, L. shortleaf, P. echinutu Mill., slash, P. elliofii Engelm and longleaf pines P. palustris Mill. was conducted to determine optimum tree species and treatments for reforestation; and to recommend practical alternative land uses and management strategies for Typic Quartzipsamrnents. With successful regeneration also comes insects and pathogens. Impacts of the Nantucket pine tip moth, Rhyacioniujkstrunu, (Comstock) the Deodar weevil, Pissodes nernorensis, Germar, Annosus root rot, Heterobusidion unnosusm …

Activity Patterns And Habitat Use Of Northern Bobwhite Females In 2 Grazing Systems, R. Montague Whiting Jr., Denise L. Sloan

Faculty Publications

During spring and summer of 1985 and 1986, we investigated activity patterns and habitat use of female northern bobwhite (Colinus virginianus) on 2 sites in south Texas. One site had been subjected to a short duration grazing (SDG) system and the other to a continuous grazing (CG) system. Nineteen females were radio-tagged in 1985 and 28 in 1986. Rainfall was above average in 1985 and below average in 1986; as a result, herbaceous ground cover was more dense in 1985 than in 1986. Due to extensive fencing, 58% of the SDG cell was within 25 m of a mowed roadside, …

Effects Of Fall Fertilizer Applications Of Mitotic Index And Bud Dormancy Of Loblolly Pine Seedlings, Hans Michael Williams, David B. South

Faculty Publications

A series of studies examined the effects of fall fertilization with diammoniwn phosphate (DAP) on mitotic index and bud donnancy [as measured by mean days to budbreak (DBB)] of two half-sib seed sources of loblolly pine. The first study tested different rates of DAP (0, 67, and 202 kg Nlha), the second study compared DAP with ammoniwnnitrate, and the third study examined the effect of different application dates (September 28, October 19, and November 9). An increase in mitotic index of unfertilized seedlings was observed during October and was due to developmental activity which follows initial budset. Differences in mitotic …

Relative Performance Of Hardwood Sawing Machines, P. H. Steele, M. W. Wade, Steven H. Bullard, P. Araman

Faculty Publications

Only limited information has been available to hardwood sawmiller on the performance of their sawing machines. This study analyzes a large database of individual machine studies to provide detailed information on 6 machine types. These machine types were band headrig, circular headrig, band linebar resaw, vertical band splitter resaw, single arbor gang resaw and double arbor gang resaw. Kerf width and within-board, between-board and total sawing variation values are given with an analysis of their origin in individual machine characteristics. Feedworks and setworks type and sawblade thickness and type generally determined machine type performance.

"What's Past Is Prologue": Our Legacy - Our Future, 1990 National Interpreters Workshop, David Kulhavy, Michael Legg

eBooks

"... the topics of the papers presented at the 1990 National Interpreters Workshop reflect a dynamic NAI membership. While firmly rooted to principles which have been developed in over a millennium, presenters show a healthy use of past knowledge as prologue to an active, vital present ..."

Research Report No. 26, Hyperstand 2.0: Estimating Yield Of East Texas Pine Plantations (Update To Hyperstand 1.0), A. Gordon Holley, Eric L. Taylor

Informal Project Reports

An update to a computer program for estimating per acre yield for lob lolly .pine ( Pinus taeda L. ) and slash pine ( Pinus elliotti Engelm. ) plantations in East Texas is presented. The program, HYPERSTAND 2.0, was written utilizing HYPERCARD and is designed to run on MACINTOSH personal computers. In order to run, HYPERSTAND 2.0 requires the application program HYPERCARD 1.2.2 and HYPERCARD HOME STACK.

Research Report No. 25, Frmps: A Forest Resource Management Planning Simulator For East Texas Pine Plantations, Tom Hartz

Informal Project Reports

FRMPS is designed to provide a landowner an opportunity to simulate the establishing, growing and harvesting of lob lolly pine ( Pinus taeda L.) and slash pine ( Plnus elltotti Engelm. ) plantations in East Texas. Also included in the model is a procedure to s1mulate the growing of an existing non-plantation with a future conversion to ptne plantet1on. The effect of different cash flows from various activities and operations is analyzed using net present value as the decision-making criterion. FRMPS runs on a Macintosh SE or 11 personal computer and requires STELLA FOR BUSINESS v. 2. 1 software.

Research Report No. 24, Hyperstand 1.0: A Hypercard Computer Program For Estimating Yield Of East Texas Pine Plantations, Eric L. Taylor, A. Gordon Holley

Informal Project Reports

A computer program for estimating per ~e yield for lob lolly and slash pine plantations in East Texas is presented. The program, HYPERSTAND 1.0, is written in HYPERCA.RD and 1s designed to run on MACINTOSH computers. In order to run, HYPERSTAND requires the application program HYPERCA.RD l .2.

Research Report No. 23, Environmental Factors Influencing Diameter Development Within East Texas Loblolly Pine Plantations, Pilis Malim

Informal Project Reports

An assessment of the role of various environmental fa::tors on the development of four measures of diameter--minimum, arithmetic mean, quadratic mean and maximum- -was conducted for lob lolly pine ( Pinus taeda L.) plantations in East Texas. Of 12 environmental f~tors analyzed, only slope percent, two measures of non- planted vegetation Md surface soil pH significantly influenced diameter development.

Research Report No. 22, A Computer Program In Basic For Estimating Yield Of East Texas Pine Plantations, Terry L. Hackett, Tom M. Hartz

Informal Project Reports

A computer program for estimating per acre yield for lob lolly and slash pine plantations in East Texas ls presented. The program, DIADISD.BAS, ls written in BASIC and is designed to run on IBM (and compatible) PC computers. An option in DIADISD.BAS allows the user to impose mortality rates on the pine plantations for both fusiform rust infected tree stems Md disease-free stems.

Research Report No. 21, A Fortran Computer Program For Estimating Yield Of East Texas Pine Plantations, J. David Lenhart

Informal Project Reports

A computer program for estimating per acre yield for loblolly and slash pine plantations In East Texas ls presented. The interactive program, DIAYLDSUR. is written in FORTRAN and ls resigned to run on a main-frame computer. An option in DIAYLDSUR allows the user to Impose mortality rates on the pine plantations for both fusiform rust infected tree stems and disease- free stems.

Research Report No. 20, Stumpage Price Trends Of Pine Sawtimber And Pulpwood In East Texas, Update: 1977-1987, J. David Lenhart, Kent T. Adair

Informal Project Reports

An update of past stumpage price performance for East Texas pine sawtimber and pulpwood is presented, using information from Texas Forest Service 1983-87 and Timber Mart-South 1977-87. In ~ltlon. information from the Louisiana Department of Agriculture on stumpage price trends in Louisiana between 1955-87 is described. Two Prognostications on future stumpage price trends are included.

Research Report No. 19, Estimating Survival For East Texas Pine Plantations, J. David Lenhart, Terry L. Hackett

Informal Project Reports

Equations to estimate the expected number of trees per acre at future points within a rotation are presented for planted lob lolly pine ( Pinus taeda L. ) and slash pine ( Pinus elliottii Engelm ) trees on non-old-fields in East Texas. Separate functions are presented for fusiform rust infected trees and uninfected trees.

Research Report No. 18, Fusiform Rust Occurrence In East Texas Pine Plantations, 1969-1987, J. David Lenhart, Terry L. Hackett

Informal Project Reports

Information from five surveys of slash pine ( Pinus ellioitti Engelm. ) and loblolly ( Pinus taeda L. ) pine plantations in East Texas between 1969 and 1987 indicated that infection rates for fusiform rust ( Cranatlium quercuum (Berle) Miyabe ex Shirai f. sp. fusiforme) have increased to about 50~ for slash pine and are continuing to increase for loblolly pine to current levels of 10- I 5:t.

Impact Of New Technology On Timber Harvesting Costs: Evaluation Methods And Literature, F. W. Cubbage, B. J. Stokes, Steven H. Bullard

Faculty Publications

Timber harvesting and transport are crucial components of the cost of delivered wood to forest products processing facilities. In fact, harvesting and delivering wood often costs more than the entire costs of growing wood until harvest. As such, timber harvesting research and development are important. Additionally, research in this area is worthwhile because efficiency gains, cost improvements, and environmental benefits due to timber harvesting research can be realized in a very short time period, rather than the decades-long wait required for research investments in timber growing.

This paper provides an overview of the means of measuring the impact of new …

Research Report No. 17, Stand Structure And Yield Of Slash Pine Plantations In East Texas, Update: 1987, J. David Lenhart

Informal Project Reports

An updated diameter distribution yield prediction system is Presented for slash pine ( Pinus elliottii Engelm. ) plantations on non-old-fields in East Texas. The new revised system was developed using data from initial measurement ( 1982- 84) and first remeasurement ( 1985-87) of the East Texas Pine Plan tat ion Research Project permanent Plots.

Research Report No. 16, Stand Structure And Yield Of Loblolly Pine Plantations In East Texas, Update: 1987, J. David Lenhart

Informal Project Reports

An updated diameter distribution yield prediction system is presented for loblolly pine ( Pinus taeda L. ) plantations on non- old-fields in East Texas. The new revised system was developed using data from initial measurement ( 1982-84) and f irst remeasurement ( 1985-87) of the East Texas Pine Plan tat ion Research Project permanent plots.