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Articles 601 - 630 of 797

Full-Text Articles in Forest Sciences

Fuel Weight Predictions Equations For Understory Woody Plants In Eastern Texas, Hershel C. Reeves, J. David Lenhart Jan 1988

Fuel Weight Predictions Equations For Understory Woody Plants In Eastern Texas, Hershel C. Reeves, J. David Lenhart

Faculty Publications

Equations were developed for predicting total above-ground fuel weight (ovendry in grams) of 19 understory woody plant species in eastern Texas forests, using logarithmic equations and stem basal diameter. Prediction of woody fuel weight can be used to enhance fire intensity estimates under varying fuel moisture and weather conditions. Key words: biomass, fuels; understory species; prediction equations.


Impact Of New Technology On Timber Harvesting Costs: Evaluation Methods And Literature, F. W. Cubbage, B. J. Stokes, Steven H. Bullard Jan 1988

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 Dec 1987

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 Dec 1987

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.


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

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 Feb 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.


Forval: A Computer Program For Forest Valuation, Steven H. Bullard, Thomas J. Straka, T. G. Matney Jan 1987

Forval: A Computer Program For Forest Valuation, Steven H. Bullard, Thomas J. Straka, T. G. Matney

Faculty Publications

FORVAL (FORest VALuation) is a computer program for cash-flow analysis of forestry investments. The FORTRAN 77 program is available from the MAFES Forestry Department for Data General computers using the Advanced Operating System with Virtual Storage, and for IBM-compatible personal computers (send letter of request and 51!.-inch diskette to P.O. Drawer FR, Mississippi State, MS 39762).


Tree Content And Taper Functions For Loblolly And Slash Pine Trees Planted On Non-Old-Fields In East Texas, J. David Lenhart, Terry L. Hackett, Charlie J. Laman, Thomas J. Wiswell, Jock A. Blackard Jan 1987

Tree Content And Taper Functions For Loblolly And Slash Pine Trees Planted On Non-Old-Fields In East Texas, J. David Lenhart, Terry L. Hackett, Charlie J. Laman, Thomas J. Wiswell, Jock A. Blackard

Faculty Publications

Equations are presented to estimate total or partial stem content in cubic feet and pounds (green or dry) for loblolly pine (Pinus taeda L.) and slash pine (Pinus elliotti Engelm.) trees planted on non-old-fields in East Texas. Equations are included to estimate the content of the complete tree (stem and branches). In addition, a set of compatible stem taper functions are described. South. j. Appl. For. 11(3):147-151


Effect Of Time And Depth Of Planting On Survival And Growth Of Loblolly Pine (Pinus Taeda L.) Seedlings In Texas, M. Victor Bilan Jan 1987

Effect Of Time And Depth Of Planting On Survival And Growth Of Loblolly Pine (Pinus Taeda L.) Seedlings In Texas, M. Victor Bilan

Faculty Publications

Loblolly pine seedlings were lifted from a nursery bed in two-week intervals (November 4-April 21) and were immediately planted in an open field. Each planting included seedlings planted at the root collar (A), one-half of shoot buried (B) and most of the shoot buried except for the one-inch terminal (C). Average mortality during the first year was 10%, 13% and 16% for the A, B and C planting depths, respectively; the corresponding values for the second year mortality were 2%, 3% and 5%. Average first year mortality by the planting periods ranged - 24% with the highest values for April …


Management And Pest Management Considerations On Droughty Soils: Four Year Results, David Kulhavy, Kenneth G. Watterson, James Kroll, James R. Meeker Jan 1987

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.


Estimating The Amount Of Wood Per Acre In Loblolly And Slash Pine Plantations In East Texas, J. David Lenhart Jan 1987

Estimating The Amount Of Wood Per Acre In Loblolly And Slash Pine Plantations In East Texas, J. David Lenhart

Faculty Publications

Two diameter distribution yield prediction systems are presented for loblolly pine (Pinus taeda L.) and slash pine (Pinus elliotti Engelm.) plantations located on non-old-fields in East Texas. A separate system was developed for each species based on the initial measurement of the East Texas Pine Plantation Research Project permanent plots.


Forest Insect Hazard Rating, Ray R. Hicks Jr., Jack E. Coster, G.N. Mason Jan 1987

Forest Insect Hazard Rating, Ray R. Hicks Jr., Jack E. Coster, G.N. Mason

Faculty Publications

No abstract provided.


Bugs! Bugs! Bugs!-Interpreting Insects For Children, David Kulhavy Jan 1987

Bugs! Bugs! Bugs!-Interpreting Insects For Children, David Kulhavy

Faculty Publications

No abstract provided.


Basic Mathematical Programming Applications To Weed Control In Forestry, Steven H. Bullard, R. H. Richardson, Thomas J. Straka Jan 1987

Basic Mathematical Programming Applications To Weed Control In Forestry, Steven H. Bullard, R. H. Richardson, Thomas J. Straka

Faculty Publications

Many studies document herbicide performance for Heed and hardwood control in forestry. Few studies, hoHever, attemp t to develop optima l application strategies. Stand-level optindzation is presently limited due to lack of groHth and yield information. Forest-level optimization is possible, however, and has great potential to aid in planning forestry weed control prog rams.


State Cost-Share Programs For Nonindustrial Private Forestry Investments, Thomas J. Straka, Steven H. Bullard Jan 1987

State Cost-Share Programs For Nonindustrial Private Forestry Investments, Thomas J. Straka, Steven H. Bullard

Faculty Publications

Fourteen states provide cost-share assistance for approved forestry practices. Host programs are intended to increase forest productivity. Funding is typically from state appropriations and/or taxes on primary forest products. Cost-share rates range up to 80 percent, but most programs are at the 50 percent level. All programs require an approved forest management program. Eligible practices are generally reforestation, site preparation, and timber stand improvement.


Costs And Cost Trends For Forestry Practices In The South, William F. Watson, Thomas J. Straka, Steven H. Bullard Jan 1987

Costs And Cost Trends For Forestry Practices In The South, William F. Watson, Thomas J. Straka, Steven H. Bullard

Faculty Publications

Cost estimates of practicing forestry in the South during 1986 and cost changes during the 1952-1986 period are presented in this report. Albert C. Worrell reported the original cost study in Forest Farmer in May 1953. His work was updated by James G. Yoho and Robert B. Fish in the November 1961 issue of Forest Farmer. Other revisions include James G. Yoho, George F . Dutrow, and James Moak (Forest Farmer, 1971); James Moak and Jim Kucera (Forest Farmer, 1975); James Moak, James Kucera, and W.F. Watson (Forest Farmer Manual, 1977); James Moak, W.F. Watson, and Paul Van Deusen (Forest …


Research Report No. 13, Estimating Dry Weight Of Understory Woody Plants In East Texas, Hershel C. Reeves, J. David Lenhart Dec 1986

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.


Some Statistical Analyses Of The Climate Of Nacogdoches, Texas For Applications In Natural Resources Management, Alexander Sayok Dec 1986

Some Statistical Analyses Of The Climate Of Nacogdoches, Texas For Applications In Natural Resources Management, Alexander Sayok

Electronic Theses and Dissertations

Analyses of a variety of climatic variables generated from 80 years (1901-80) of daily precipitation and temperature data collected by the National Weather Service showed that Nacogdoches is characterized by a humid subtropical climate with an average annual precipitation and temperature of 45.96 inches and 65.5°F, respectively. The summer is warm and dry with mean maximum temperature of 91.6°F while winter is mild with mean minimum temperature of 38°F. There were no statistical differences between mean annual temperature and precipitation on the 1951-80 and 1901-80 periods or between any 2 normal periods. Rain days occurred once in every 4 days …


A Demonstration Of Cartographic Modeling For Evaluating Natural Resources, Olufemi Amos Olaleye Dec 1986

A Demonstration Of Cartographic Modeling For Evaluating Natural Resources, Olufemi Amos Olaleye

Electronic Theses and Dissertations

Cartographic modeling was used to evaluate the natural resources of the Angelina National Forest in East Texas. With the aid of the Map Analysis Package, three models were developed to evaluate historic changes, project future trends and to determine the proximity of resource to a specific location. Accuracies of results were determined at two different scales. MAP estimates at the smaller scales were about 92% and about 98% at the larger scale. Boundary cells were found to be important in improving accuracies of MAP estimates at the smaller scale. The performance of a representative low-cost grid-based system in building cartographic …


Research Report No. 12, Stand Structure And Yield Of Slash Pine Plantations On Non-Old-Fields In East Texas, J. David Lenhart Nov 1986

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 Nov 1986

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 Oct 1986

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 Oct 1986

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 Oct 1986

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 Oct 1986

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 Oct 1986

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 Oct 1986

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.


The Effects Of Nitrogen And Phosphorus Fertilizer On A Young Loblolly Pine Plantation On Lignite Mine Spoil In East Texas, Martin Andrew Shupe Aug 1986

The Effects Of Nitrogen And Phosphorus Fertilizer On A Young Loblolly Pine Plantation On Lignite Mine Spoil In East Texas, Martin Andrew Shupe

Electronic Theses and Dissertations

Five levels of nitrogen fertilizer combined with three levels of phosphorus fertilizer were tested in a two year-old loblolly pine plantation on a lignite mine spoil in East Texas. Growth parameters, foliar and spoil nitrogen and phosphorus concentrations were measured after two growing seasons. Nitrogen increased diameter growth during the first year, and foliar nitrogen increased with increasing fertilizer rates for both years. Phosphorus increased height during the first year and over both years combined and also increased diameter during the second year and over both years combined. Foliar phosphorus was increased by nitrogen in the first year. Spoil phosphorus …


The Msu Student Chapter, Society Of American Foresters, Steven H. Bullard Jan 1986

The Msu Student Chapter, Society Of American Foresters, Steven H. Bullard

Faculty Publications

Forestry students at Mississippi State are encouraged to participate in organizations that strengthen their sense of professionalism and point them toward continued development after graduation. The Student Chapter of the Society of American Foresters is one of those organizations. Forestry students who take part in its activities are aided in developing communication and leadership skills that are difficult to learn in a classroom. Forestry is not just trees. Forestry students deal with the biology of the forest and the economics of timber. They learn how to use these tools to achieve a forest landowner's objectives. Foresters not only make decisions-they …


Fusiform Rust Trends In East Texas, Ellis V. Hunt Jr., J. David Lenhart Jan 1986

Fusiform Rust Trends In East Texas, Ellis V. Hunt Jr., J. David Lenhart

Faculty Publications

Four surveys of pine plantations in East Texas between 1969 and 1984 indicate that fusiform rust (Cronartium quercuum (Berk.) Miyabe ex Shirai f. sp. fusiforme) infection rates are increasing on slash pine (Pinus elliottii Engelm. var. elliottii) and either decreasing or about constant on loblolly pine (Pinus taeda L.). Currently, stem infections occur on about 1 in 2 slash pines and 1 in 14 loblolly pines. South. J. Appl. For. 10:215-216, Nov. 1986.