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Stephen F. Austin State University

Electronic Theses and Dissertations

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Pest Management Strategies For Longhorn Army Ammunition Plant And An Assessment Of Aerial Radiography For Hazard Rating Pine Stands For Southern Pine Beetle Infestation, James Matthews May 1998

Pest Management Strategies For Longhorn Army Ammunition Plant And An Assessment Of Aerial Radiography For Hazard Rating Pine Stands For Southern Pine Beetle Infestation, James Matthews

Electronic Theses and Dissertations

Currently, sampling or hazard rating insects at military installations is limited. The use of aerial videography is a relatively new technology and is currently used for aerial surveys and is being developed for hazard rating for southern pine beetle. The purpose of this study was to apply existing sampling methods for various insects and disease at the Longhorn Army Ammunition Plant in Karnak, Texas and to test the effectiveness of aerial videography for hazard rating pine stands for southern pine beetle. Based on field data, stands were generally rated as moderate for southern pine beetle; moderate to high infestations of …


Development Of A Predictive Habitat Evaluation Model For Gaillardia Aestivalis (Walt.) Rock. Var. Winkleri (Cory) Turner Using Gps, Remote Sensing And Gis Techniques, Dasyam Samuel Rajasekhar Mar 1997

Development Of A Predictive Habitat Evaluation Model For Gaillardia Aestivalis (Walt.) Rock. Var. Winkleri (Cory) Turner Using Gps, Remote Sensing And Gis Techniques, Dasyam Samuel Rajasekhar

Electronic Theses and Dissertations

Geographic Information Systems (GIS), Global Positioning Systems (GPS) and remote sensing techniques were utilized to characterize and subsequently predict potential habitat of Gaillardia aestivalis var. Winkleri, occurring in Hardin County, TX. Field investigations along with CIR positive aerial photographs were used to study local distribution and ecological requirements (soil, site, plant associations) of the plant. Data were obtained from paper maps, aerial photographs and a Landsat TM image. Sites occupied by G. aestivalis var. Winkleri were characterized as having highly acidic soils with poor nutrient content, good drainage and rapid permeability. Along with soil types, vegetation also is an important …


Water Quality Of East Texas Streams: Forested Versus Pastured Watersheds Receiving Poultry Litter Applications, Mark Craig Cochran May 1996

Water Quality Of East Texas Streams: Forested Versus Pastured Watersheds Receiving Poultry Litter Applications, Mark Craig Cochran

Electronic Theses and Dissertations

Water quality and stream discharge were monitored at six sites on two Nacogdoches County, Texas streams over a nine month period (March - November 1995). Three sites were located in forested watersheds and the other three sites were downstream of pastured watersheds surface-applied with poultry litter, a potential nonpoint source of pollution. Stream water samples were analyzed for Ca, K, Mg, Na, 03-N ,TKN, P04-P, TP, TSS, pH, and dissolved oxygen. A rapid bioassessment was conducted to assess aquatic life stream conditions. Half of the 273 stream samples had nitrate-nitrogen concentrations greater than 0.30 mg L-1 high enough to support …


Validation Of An Instrument To Measure The Change In Ecological Vocabulary Of Teachers Attending Texas Environmental Education Advisory Committee Endorsed Programs, James Isleib May 1995

Validation Of An Instrument To Measure The Change In Ecological Vocabulary Of Teachers Attending Texas Environmental Education Advisory Committee Endorsed Programs, James Isleib

Electronic Theses and Dissertations

An instrument was developed and evaluated for measuring the effect of the Texas Environmental Education Advisory Committee (TEEAC) endorsed teacher inservice programs on participants' ecological vocabulary. Principal study objectives were to establish a basic ecological vocabulary essential to environmental education and evaluate the instrument's effectiveness in measuring change in participants' ecological vocabulary resulting from exposure to TEEAC programs. The Ecological Vocabulary Survey (EVS) was developed from 57 ecological terms. A comparison of EVS terms with terms selected by ecological and environmental education organizations indicated the EVS terms were essential to environmental education. A total of 148 matched pairs of pre …


The Hydroclimatic Characteristics Of Nacogdoches, Texas With Implications For Water Resources Management, Larry David Clendenen Aug 1994

The Hydroclimatic Characteristics Of Nacogdoches, Texas With Implications For Water Resources Management, Larry David Clendenen

Electronic Theses and Dissertations

Sayok's (1986) study and statistical analysis of the climate at Nacogdoches, Texas covering 1901 to 1980 is updated to include the most recent twelve years (1981-92) of records. Missing data are estimated, all analyses are repeated, and the new 1961-90 normal climate is compared to the 1951-80 and other normals. Results showed that the climate at Nacogdoches during the last decade was about the same as that in other recent decades. Thomthwaite's (1957) climate classification defines Nacogdoches as moist subhumid, third mesothermal, with moderate summer water deficiency, and a temperature effIciency regime equal to a fourth mesothermal climate. There are …


An Evaluation Of A Pilot Interpretive Program For National Forest Recreation Areas In East Texas, Ronda Elain Sutphen May 1994

An Evaluation Of A Pilot Interpretive Program For National Forest Recreation Areas In East Texas, Ronda Elain Sutphen

Electronic Theses and Dissertations

A visitor survey was conducted at Ratcliff and Double Lake National Forest Recreation Areas to evaluate visitor characteristics and the effectiveness of interpretive services as a management tool. Two hundred eighty-two campers completed the visitor survey. A one hundred percent sample was attempted at both recreation areas every Sunday morning during July and August of 1991. Data from both recreation areas were analyzed and compared in order to determine any significant differences between visitors in each recreation area and also between visitors who attended or did not attend interpretive programs.


A Preliminary Preview Of Compensatory Forest Plantation In Peninsular Malaysia, Tuck Chin Dec 1992

A Preliminary Preview Of Compensatory Forest Plantation In Peninsular Malaysia, Tuck Chin

Electronic Theses and Dissertations

Projections of supply and demand for timber appear to indicate a domestic shortage in Peninsular Malaysia by the year 2000. Timber shortage will result in loss of foreign exchange, retrenchment of timber workers, inflate prices and depress construction and housing industries. Compensatory Forest Plantation Program (CFPP) is one of the methods taken by the Malaysian Government to avert this impending crisis. CFPP was officially launched in 1983, in four States of Peninsular Malaysia. By 1989, forest plantations totaling 36,874 hectares were established. A final analysis of CFPP is premature, as the program is only in its seventh year of a …


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 …


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 …


Two Year Survival And Growth Of Loblolly Pine Seedlings From Two Texas Seed Sources On Lignite Minesoils, Gerald Allen Wood May 1985

Two Year Survival And Growth Of Loblolly Pine Seedlings From Two Texas Seed Sources On Lignite Minesoils, Gerald Allen Wood

Electronic Theses and Dissertations

Loblolly pine seedlings from Lost Pines (drought-hardy) and East Texas (regular) seed sources were planted in lignite minesoils in Panola County, Texas. Heights, root-collar diameters, and survival were monitored for two years. Treatments included application of Pisolithus tinctorius basidiospores immediately after planting and use of acephate for tip moth control during the second growing season. Standard foliar analyses were conducted at the end of the second growing season. East Texas seedlings grew more in height and root-collar diameter, and had higher survival percentages than Lost Pines. No growth response from treatment with P. tinctorius was observed. Treatment with acephate resulted …


Sulfate Leaching From Sulphur Binding Agents In Experimental Asphalt Pavement, Angelina County, Texas, Peter Blanchette May 1985

Sulfate Leaching From Sulphur Binding Agents In Experimental Asphalt Pavement, Angelina County, Texas, Peter Blanchette

Electronic Theses and Dissertations

Sulfate leaching from sulphur-binding agents used in asphalt pavement was significantly higher (p>.05) from four layers of a mixture of a single aggregate base material of hot sand, when compared to all other treatments. Analysis of the data showed that the other treatments had no overall effect on the soil sulfates. Four layers of a single aggregate of hot sand increased the quantity of sulfates in the soil by 107%. I recommend the use of sulphur-asphalt binder with the type "D" base material throughout construction or when two layers of the type "D" base material are placed on top …


Soil Studies Educational Unit And Soil Reconnaissance Survey Of Piney Woods Conservation Center, Consuelo Garcia Campos Klotz Dec 1982

Soil Studies Educational Unit And Soil Reconnaissance Survey Of Piney Woods Conservation Center, Consuelo Garcia Campos Klotz

Electronic Theses and Dissertations

A soil reconnaissance survey was conducted on 2,500 acres adjacent to Sam Rayburn Reservoir, in the Angelina National Forest, San Augustine County, the future site of the proposed Piney woods Conservation Center. Data from the soil reconnaissance survey was interpreted and organized into a soil studies educational unit to be used to familiarize teachers with a variety of soils and their properties. Five of the eight soils were integrated into the study unit which is a portion of the total outdoor education and conservation program to be developed for the Piney Woods Conservation Center.


Drought-Tolerance Comparison Of Aleppo Pine And Brutia Pine Seedlings, Mohammad S. Abido May 1982

Drought-Tolerance Comparison Of Aleppo Pine And Brutia Pine Seedlings, Mohammad S. Abido

Electronic Theses and Dissertations

Seedlings of Pinus halepensis and P. brutia were grown from seeds in a greenhouse. When 6 months old, randomly sampled seedlings were subjected to water stress by withholding irrigation. During this period, foliage and root characteristics of seedlings not under moisture stress were recorded. Pinus halepensis showed the greater ability to endure moisture stress and to maintain a higher level of needle-moisture content during the dry-down period. Meanwhile, P. brutia showed important anatomical and morphological adaptations which enable the species to conserve moisture.


Effects Of Site Preparation On Survival And Growth Of Planted Loblolly Pine, John Gorham Dec 1981

Effects Of Site Preparation On Survival And Growth Of Planted Loblolly Pine, John Gorham

Electronic Theses and Dissertations

Effects of site preparation on survival and growth of planted loblolly pine (Pinus taeda L.) on a loblolly-shortleaf pine-hardwood forest site in East Texas are examined by determining the survival and growth of planted loblolly pine, soil chemical characteristics, and density and height of competing (non-pine) woody stems. Three replications of four site preparation treatments (control, burn, chop, KG blade) resulted in the KG bladed plots having the highest survival, height, and diameter, but the lowest nutrient levels while, also, most effectively controlling competing vegetation. This tends to indicate that the advantages in the initial survival and growth on the …


Pisolithus Tinctorius Mycobiont Inoculations As A Factor In Performance Of Containerized And Bare-Root Shortleaf Pine Seedlings On Lignite Minesoils In Panola County, Texas, Hoy Lee Bryson Aug 1980

Pisolithus Tinctorius Mycobiont Inoculations As A Factor In Performance Of Containerized And Bare-Root Shortleaf Pine Seedlings On Lignite Minesoils In Panola County, Texas, Hoy Lee Bryson

Electronic Theses and Dissertations

The effects of artificial soil infestation with basidiospores and vegetative mycelia of the fungal symbiont Pisolithus tinctorius on ectomycorrhizae development of short leaf pine (Pinus echinata) seedlings grown in styroblock containers were tested in the greenhouse. These preliminary tests showed that both spores and mycelia will produce satisfactory ectomycorrhizae development. Various methods of inoculation had little effect on growth and development of containerized seedlings or on the accumulation of N, P, K, Ca, Mg, Na, Mn, Zn, or Cu in foliage and lateral roots. The styroblock containerization system used in conjunction with sandy loam soil/vermiculite (2:1 v/v) potting-mix produced excellent …


Comparison Of Three Mass Media For Communicating Forestry Information For Young People, Ross Lee Tomlin Aug 1980

Comparison Of Three Mass Media For Communicating Forestry Information For Young People, Ross Lee Tomlin

Electronic Theses and Dissertations

A comparison of three mass media ( TV, radio and newspaper) was made to find which would be more effective at communicating forestry information to young people. The field study was conducted at Nacogdoches, Lufkin, and Kilgore High Schools in East Texas. Questionnaires given to students before and after exposure to six media spots tested forestry knowledge and attitudes. One spot in each medium presented a hardsell threat approach, the other a softsell-humorous approach. A final questionnaire measured student preferences of the media. Analysis of data indicated newspaper and TV to be the most effective media, with radio less effective. …


Bedding As A Factor In The Survival And Total Height Of Two Year Old Planted Loblolly Pine Seedlings In East Texas, Edgar Wilkins Aug 1980

Bedding As A Factor In The Survival And Total Height Of Two Year Old Planted Loblolly Pine Seedlings In East Texas, Edgar Wilkins

Electronic Theses and Dissertations

With an ever increasing demand placed on wood fiber supply by industry, it has become imperative that every feasible means be pursued which will increase the wood fiber production per acre of land on every plantsble site. With this in mind, this study was conducted in an attempt to determine the effect of bedding in intensive site preparation on the total height and survival of two year old loblolly pine (Pinus taeda, L.) seedlings planted on bottomland and upland sites. Forty row (or lineal) plots 100 feet long were established on machine planted areas on bedded and unbedded, bottomland and …


Zinc Uptake In Loblolly Pine Seedlings, Victor Zillmer Aug 1978

Zinc Uptake In Loblolly Pine Seedlings, Victor Zillmer

Electronic Theses and Dissertations

Zinc concentrations in the root, terminal growth, stem, and needles of loblolly pine (Pinus taeda L.) were measured in 72 seedlings grown in washed sand, fertilized with Zn(N03)2. Zinc treatment periods were early spring, late spring, and summer. Zinc uptake was the greatest in early spring. Zinc nitrate fertilizer and remaining soil zinc at treatments end had no effect on mycorrhizae, height, or diameter growth. Linear and multiple regressions were derived using residual soil zinc and treatment zinc that can predict zinc concentrations in different plant parts that have r values from .7440 to .8170. Linear regressions for the prediction …


The Age And Fertility Of Lignite Strip Mine Spoils From The Darco Mine, Harrison County, Texas, Reagan Cook Dec 1977

The Age And Fertility Of Lignite Strip Mine Spoils From The Darco Mine, Harrison County, Texas, Reagan Cook

Electronic Theses and Dissertations

Field observation of lignite strip mine spoils from the Darco mine near Marshall, Texas, revealed that gray spoil materials of various ages were devoid of vegetation. Within the same sites, spoil materials which were non-gray supported several conditions of revegetation. Analysis of spoil materials from this mine was undertaken to determine if spoils were differentiated on a chemical basis. Gray materials appear to have greater mineral sources of zinc, iron, and sulfate than non-gray spoils, and greater concentrations of zinc, calcium, magnesium, and potassium at all sites. Further, older spoils (17 to 31 years of age) have mean pH values …


Use Of Lignite Fly Ash As A Soil Amendment, Thomas Victor Brown Dec 1977

Use Of Lignite Fly Ash As A Soil Amendment, Thomas Victor Brown

Electronic Theses and Dissertations

One-year-old loblolly pine (Pinus taeda L.) seedlings were grown in a greenhouse in potted mixtures of two Texas lignite fly ashes and a Troup sand, Sacul sandy loam, and a sandy clay loam strip-mine spoil. Mixtures contained 0, 25, 50, 75 and 100 percent fly ash. After six months, soil fly ash mixtures were analyzed for N, P, Ca, Mg, K, Na, Mn, Zn, pH, cation-exchange capacity, percent base saturation, and texture. Needle and root tissue analyses were performed on both live and dead seedlings. Survival and height growth were both adversely affected by fly ash amendments. Nearly all seedlings …


The Effects Of Prescribed Burning On Nutrient Content Of Selected Understory Species In An East Texas Loblolly-Shortleaf Pine Stand, Kelly Bell May 1977

The Effects Of Prescribed Burning On Nutrient Content Of Selected Understory Species In An East Texas Loblolly-Shortleaf Pine Stand, Kelly Bell

Electronic Theses and Dissertations

The objectives of this study were to determine whether prescribed burning affected nutrient levels in leaves and twigs of six species and whether there were differences in response between leaves and twigs. Backfire and headfire treatments were used to determine differences between burning techniques. Samples were collected in October, 1974. The burn was in March, 1975 and post-burn sampling was in June, 1975, September, 1975, and June, 1976. Leaf and twig tissue were analyzed for contents of protein, calcium, potassium, and phosphorus and then subjected to statistical analysis. No difference was found between burning techniques. Protein and phosphorus increased and …


Aspects Of Some Compacted Campground Ameliorating Practices, Keith Foster Dec 1976

Aspects Of Some Compacted Campground Ameliorating Practices, Keith Foster

Electronic Theses and Dissertations

The purpose of this study was to determine if the direct mechanical manipulation of compacted campground soils, with and without the addition of organic materials and the planting of grasses, had any long lasting effect on the amelioration of these deteriorated campsites. An attempt was also made to determine the natural recovery time for East Texas sandy loam soils using the campground closure method. Closure or partial (seasonal) closure of campsites reduced compaction to an acceptable level in three years. Roto-tilling alone was the least effective treatment. Roto-tilling and the addition of bark or chips to maintain the loose soil …


Percent Accuracy By Crown Closure Classes Of Woodland Stands Mapped From Skylab-4 Photography And Landsat-1 Imagery, Roger Dale Goldsmith Aug 1975

Percent Accuracy By Crown Closure Classes Of Woodland Stands Mapped From Skylab-4 Photography And Landsat-1 Imagery, Roger Dale Goldsmith

Electronic Theses and Dissertations

LANDSAT-l imagery and satellite photography have been utilized for land-use mapping. This study investigated the correlation between woodland stands mapped and their percent crown closure using LANDSAT-l imagery and Skylab-4 photography. On the basis of percent accuracy of crown closure classes mapped or not mapped, Skylab-4 photography proved superior over LANDSAT-l imagery for mapping woodlands


Effects Of Land Disposal Of Pulp Mill Effluents On Plant Nutrient Uptake And Element Balance, Joseph B. Schwarzback May 1974

Effects Of Land Disposal Of Pulp Mill Effluents On Plant Nutrient Uptake And Element Balance, Joseph B. Schwarzback

Electronic Theses and Dissertations

An analysis of the soil and plant tissues was undertaken to ascertain the effect that land irrigation with pulp mill effluent has on nutrient uptake and element balance of tree seedlings. Results show that the effluent significantly increased the sodium content of both soil and tissue; however, these levels fell far below the level necessary to become detrimental to plant life, soil chemistry and soil structure. There was evidence that the increase of elements from the effluent provided positive effects in growth and plant health. There was no evidence of sodium toxicity or calcium starvation. Evidence clearly points out the …


Criteria For Recreation Site Selection On Flood Control Reservoirs-Case Studies, Kenneth B. Mclaughlin May 1973

Criteria For Recreation Site Selection On Flood Control Reservoirs-Case Studies, Kenneth B. Mclaughlin

Electronic Theses and Dissertations

Stephen F. Austin State University was awarded a contract in August 1971 to select the 1,200 acres best suited for recreation area development on three proposed flood control reservoirs. At that time, there was no central publication which could be used as a guide for such a project. This thesis was written to help correct this situation. The nine factors that were used in initial site selection are soils, topography, access, wind, vegetation, land ownership, distribution of the sites, bridges and open-water and cove locations. Once the sites were selected, they were evaluated and assigned priorities for development according to …


The Development And Testing Of A Fire Simulator Exercise, Don A. Clymer Aug 1972

The Development And Testing Of A Fire Simulator Exercise, Don A. Clymer

Electronic Theses and Dissertations

A forest fire simulation exercise was developed for the purpose of supplementing forest fire instruction, presenting students with decision-making situations encountered on forest fires, and introducing them to the fire simulator at Stephen F. Austin State University. The final exercise was developed after preliminary work and development of a more simple exercise. The problems with equipment, recruitment of simulator personnel, and the development and execution of the simulator exercises are discussed. Scheduling adequate time for practice, and providing adequate personnel training were found to be the major obstacles in simulator use. Future fire simulator use at SFA will be dependent …


The Effect Of Pulp Mill Effluents On The Carbon Dioxide Evolution Of Three East Texas Soils, John C. Morris Aug 1971

The Effect Of Pulp Mill Effluents On The Carbon Dioxide Evolution Of Three East Texas Soils, John C. Morris

Electronic Theses and Dissertations

Two pulp mill effluents, NaOH extraction water from the pulp bleaching process and water from the chlorination step of the pulp bleaching process, were applied to jars containing three East Texas soils. Carbon dioxide evolution was then measured with an infrared gas analyzer to determine the effect of the effluents on the respiration of soil microorganisms. The relationship between effluent treatments was not statistically significant, though detrimental effects were observed in the heavier soil. Irrigation of clays and clay loams with the effluent is not recommended. Irrigation of sandy soils should be possible if there is no danger of sub-surface …


Food Habits Of Snakes In An East Texas State Fish Hatchery, John L. Malloy Jan 1971

Food Habits Of Snakes In An East Texas State Fish Hatchery, John L. Malloy

Electronic Theses and Dissertations

A study was conducted from 1 August 1969 to 1 August 1970 in the Jasper State Fish Hatchery near Jasper, Texas to determine the amount of predation by snakes on fish being propagated. The hatchery consisted of 63 earthen ponds. A total of 373 snakes were captured. Results of stomach contents analyses of the 206 snakes containing food were calculated in per cent frequency of occurrence and per cent volume. Frogs, primarily Ranidae, were found to be the major food item. Fish were taken far less frequently, representing only 13.3 % (by volume) and 15.5 % frequency of occurrence. The …


Pine Seedling Survival And Growth Related To Moisture Retention Of Eight Texas Forest Soils, Curtis Eneim May 1968

Pine Seedling Survival And Growth Related To Moisture Retention Of Eight Texas Forest Soils, Curtis Eneim

Electronic Theses and Dissertations

Greenhouse studies showed that loblolly pine (Pinus taeda L.) seedling survival under severe drought and height growth under favorable and unfavorable moisture conditions were related to moisture retention values of eight East Texas soil types. Soil moisture retention constants nearer to field capacity tensions may give better indications of survival and development in droughty areas than moisture constants nearer to wilting point tensions. Likewise, water consumption (evapotranspiration) during favorable moisture conditions and during moisture stress was related to soil moisture retention characteristics. Costly reforestation failures can be avoided by examining the soil moisture retention characteristics of prospective planting sites to …