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Forest Sciences

Stephen F. Austin State University

1987

Articles 1 - 14 of 14

Full-Text Articles in Life Sciences

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.

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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.

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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).

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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.

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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).

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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 …

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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.

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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.

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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

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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.

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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.

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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.

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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 …

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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.

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