Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 93 for “"Other Forestry and Forest Sciences"”.
-
But Does it Work? The Impact of Social Media Use on Interpretive Outcomes and Place Attachments at San Francisco Bay Area Parks
… of social media use on interpretive outcomes and place attachment. Visitors to four parks in the San Francisco Bay Area were surveyed twice, once as they exited the park (n = 529) and a second time via email (n = 216) six to ten weeks after visiting. In both surveys, respondents were asked how …
-
Pest Management Strategies for Longhorn Army Ammunition Plant and an Assessment of Aerial Radiography for Hazard Rating Pine Stands for Southern Pine Beetle Infestation
… 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 …
-
The Effects of Prescribed Burning on Nutrient Content of Selected Understory Species in an East Texas Loblolly-Shortleaf Pine Stand
… 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 …
-
Sulfate Leaching from Sulphur Binding Agents in Experimental Asphalt Pavement, Angelina County, Texas
… 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 …
-
Pine Seedling Survival and Growth Related to Moisture Retention of Eight Texas Forest Soils
… 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 …
-
Aspects of Some Compacted Campground Ameliorating Practices
… 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 …
-
Effects of Site Preparation on Survival and Growth of Planted Loblolly Pine
<p>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 …
-
Zinc Uptake in Loblolly Pine Seedlings
… 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 …
-
The Potential for Carbon Sequestration in Soils on Lignite Coal Minelands in East Texas
… have become interested in the potential of forests to sequester large amounts of carbon in their above- and below-ground biomass as well as in the soils. It has been estimated that if the world's deforested lands were reforested and properly managed, they could have the potential to …
-
Use of Lignite Fly Ash as a Soil Amendment
… 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 …
-
Pisolithus Tinctorius Mycobiont Inoculations as a Factor in Performance of Containerized and Bare-Root Shortleaf Pine Seedlings on Lignite Minesoils in Panola County, Texas
… 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 …
-
A Preliminary Preview of Compensatory Forest Plantation in Peninsular Malaysia
<p>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 …
-
The Hydroclimatic Characteristics of Nacogdoches, Texas with Implications for Water Resources Management
<p>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 …
-
Water Quality of East Texas Streams: Forested Versus Pastured Watersheds Receiving Poultry Litter Applications
<p>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 …
-
The Age and Fertility of Lignite Strip Mine Spoils from the Darco Mine, Harrison County, Texas
… 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 below 5.0, a more rapid decline in pH, and greater concentrations …
-
Attitudes and Motivational Factors for Participation in the Becoming an Outdoors-Woman (BOW) Program
… were surveyed as to their attitudes, interests, and participation in outdoor recreation activities. The survey, administered to 265 women between October 2002 and June 2003, examined demographic characteristics, motivational factors for participation, similarities and differences between …
-
Strength Properties of Juvenile and Mature Wood of Twelve Families of Loblolly Pine (Pinus Taeda L.)
… parents which had high wood specific gravity and six were from parents which had low wood specific gravity. Thirty-two-year-old trees, that had been planted at Many, Louisiana, were sampled and juvenile and mature wood test specimens were prepared. Maximum crushing strength, modulus of …
-
Validation of an Instrument to Measure the Change in Ecological Vocabulary of Teachers Attending Texas Environmental Education Advisory Committee Endorsed Programs
<p>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 …
-
The Influence of Stand Density on Rate of Carbon Sequestration in Loblolly Pine Plantations on Mined Lands in East Texas
… dioxide (C02) into the atmosphere than any other state in the United States. With environmental concerns escalating, the U.S. may be forced to reduce its emissions of greenhouse gases. The first target of these reductions will likely be utility companies that utilize coalfired power plants. …
-
Percent Accuracy by Crown Closure Classes of Woodland Stands Mapped from Skylab-4 Photography and Landsat-1 Imagery
<p>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 …
Page 1 of 5