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Full-Text Articles in Life Sciences
Runoff Of Silvicultural Herbicides Applied Using Best Management Practices, Matthew W. Mcbroom, Jeff Louch, R Scott Beasley, Mingteh Chang, George G. Ice
Runoff Of Silvicultural Herbicides Applied Using Best Management Practices, Matthew W. Mcbroom, Jeff Louch, R Scott Beasley, Mingteh Chang, George G. Ice
Faculty Publications
Nine small (2.2 to 2.9 ha) and four large (70 to 135 ha) watersheds in East Texas, USA, were instrumented to compare herbicide runoff under different silvicultural systems with best management practices (BMPs). Two treatments were evaluated: conventional, with clearcutting, aerial herbicide site preparation, and hand-applied banded herbaceous release; and intensive, in which subsoiling, aerial fertilization, and a second-year aerial herbicide application were added. Herbicides were applied as operational tank mixes. The highest imazapyr concentration found in stream water was 39 mg L‑1 during the first storm after application (23 days after treatment, DAT) and in-stream concentrations …
Studies On Water Resources In Forested East Texas, Matthew W. Mcbroom
Studies On Water Resources In Forested East Texas, Matthew W. Mcbroom
Faculty Publications
Intensive silvicultural practices have the potential to negatively impact water resources. The effectiveness of forestry best management practices in minimizing potential water resources impacts should be evaluated. The purpose of this study is to conduct urgently needed research on water quality and quantity problems in forested East Texas.
Silvicultural Best Management Practice Compliance Monitoring Programs In The Southern United States, Amanda L. Husak, Stephen C. Grado, Steven H. Bullard, Steverson O. Moffat
Silvicultural Best Management Practice Compliance Monitoring Programs In The Southern United States, Amanda L. Husak, Stephen C. Grado, Steven H. Bullard, Steverson O. Moffat
Faculty Publications
Passage of the Clean Water Act (CWA) of 1972 prompted states to invest significant resources to develop programs to control nonpoint source (NPS) pollution from forestry and other activities. Forestry-related agencies and organizations have since developed silvicultural best management practice (BMP) guidelines to reduce NPS pollution, maintain stream integrity, and meet state water quality standards. To determine the effectiveness and implementation level of best management practices (BMP) on public and private forestland, states further developed and implemented their BMP compliance monitoring programs. This study documents the similarities and differences in efforts, methods, resources, and expenditures among BMP compliance monitoring programs …
How Are Investment Returns Affected By Competition Control And Southern Oak Seedling Survival?, D. L. Grebner, A. W. Ezall, D. A. Gaddis, Steven H. Bullard
How Are Investment Returns Affected By Competition Control And Southern Oak Seedling Survival?, D. L. Grebner, A. W. Ezall, D. A. Gaddis, Steven H. Bullard
Faculty Publications
Increasing numbers of landowners are establishing hardwood plantations to satisfy their management objectives. Despite a dearth of research on competition control and its effects on initial hardwood plantation survival and investment returns, this study examines alternative competition control regimes for southern oak establishment. The analysis includes estimates of land expectation value for comparing alternatives. Our results suggest that greater returns can be achieved for southern oaks during both good and bad rainfall years, using methods that maximize survival through competition control.
Runoff And Sediment Losses From Annual And Unusual Storm Events From The Alto Experimental Watersheds, Texas: 23 Years After Silvicultural Treatments, Matthew W. Mcbroom, R Scott Beasley, Mingteh Chang, Brian Gowin, George G. Ice
Runoff And Sediment Losses From Annual And Unusual Storm Events From The Alto Experimental Watersheds, Texas: 23 Years After Silvicultural Treatments, Matthew W. Mcbroom, R Scott Beasley, Mingteh Chang, Brian Gowin, George G. Ice
Faculty Publications
Evaluating the potential impacts of intensive silvicultural practices on water quality is critical for establishing the long-term sustainability of contemporary forest management practices. From 1979 to 1985, a study involving nine small (~2.5 ha) forested watersheds was conducted near Alto, Texas in the upper western Gulf-Coastal Plain to evaluate the impacts then-current silvicultural practices on water quality. In the years following the study, silvicultural Best Management Practices (BMPs) including Streamside Management Zones (SMZs) and other erosion control practices evolved and questions arose about the applicability of earlier results to current practices. In 1999, these same watersheds were reinstrumented to evaluate …
Rates Of Return On Silvicultural Practices, Steven H. Bullard, Bobb L. Karr
Rates Of Return On Silvicultural Practices, Steven H. Bullard, Bobb L. Karr
Faculty Publications
Anticipated rates of return can help landowners and forest managers evaluate hardwood control and many other stand treatments. A simple microcomputer model is discussed which displays rates of return for specific stand treatment conditions. The program can be used before or after taxes and with or without inflation. The model displays rates of return for ranges of silvicultural treatment costs and expected harvest value increases, thus providing information for evaluating treatments where growth responses or future prices are difficult to estimate.