Browsing by Author "Gentry, Terry"
Now showing items 1-20 of 40
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Clary, Calvin Russell (2013-12-10)Best management practices (BMPs) aim to reduce bacterial loading caused by grazing cattle. Relatively little is known about the effectiveness of alternative shade, alternative water, rip-rap, and prescribed grazing as ...
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Gregory, Lucas; Karthikeyan, R.; Gentry, Terry; Harmel, Daren; Wagner, Kevin; Lopez, Roel (Texas Water Resources Institute, 2015-11)Bacteria water quality impairments are the most common water quality issue in Texas and are a considerable source of impairments nationally. Fecal indicator bacteria such as Escherichia coli (E. coli) and enterococci derived ...
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Wagner, Kevin; Redmon, Larry; Gentry, Terry (Texas Water Resources Institute, 2010-12)According to the 2008 Water Quality Inventory and 303(d) List, 291 of the 516 impairments (i.e. 56%) were the result of excessive bacteria. Modeling and bacteria source tracking has identified grazing cattle as a source ...
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Martin, Emily C (2013-05-02)Bacterial contamination due to excessive levels of bacteria is a confounding problem and remediation of impaired watersheds relies on the detection of fecal indicator bacteria and then assessing the source of said bacteria. ...
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Yu, Ping (2021-07-08)Greenhouse production uses large amount of peat moss, which causes environmental and economic concerns. Using biochar (BC), a by-product of pyrolysis, to replace peat moss for greenhouse production could potentially address ...
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Jewell, Katrina Lee (2017-07-18)Arsenic (As) groundwater contamination is a common problem in southeast Asia and many people continue to drink water with toxic concentrations of As. More in-depth understanding of the underlying geochemistry, hydrology, ...
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McKee, Kyle Patrick (2015-02-10)Manganese (Mn) is considered a nuisance chemical in drinking water. Manganese causes problems with staining, foul odor, undesirable tastes, and can be corrosive to pipelines. The United States Environmental Protection ...
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Boak, Emily (2021-11-30)Host-associated bacterial species have evolved numerous mechanisms to enable them to interact and compete with other microorganisms and with their hosts. One such mechanism is the bacterial Type VI Secretion System (T6SS). ...
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Shao, Yiru (2019-12-09)Chlorinated solvents have been widely used in various industrial process. The wide applications and improperly disposed has resulted in groundwater and soil contaminated with these compounds. In contaminated groundwater, ...
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Boogades, Nicholas Ford (2023-07-24)The Texas Southern Plains is an important region for organic cotton (Gossypium hirsutum) and peanut (Arachis hypogea) production, growing over 90% of the United States organic crop for each. Organic management presents ...
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Hux, Brian Adam (2019-06-04)The Rolling Plains of Texas are characteristic of a low input, high risk environment with semi-arid conditions and sporadic, high intensity storms followed by periods of long drought. Agricultural practices that increase ...
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Rafi, Khurram (2015-05-06)This study examines the relationship of E. coli concentrations and recreational use to both stream order and watershed size. To determine possible ecoregion effects, the E. coli data used in this study were obtained from ...
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Howard, Keya J. (2016-12-06)Sections of streams located downstream from dairy farms and wastewater treatment plants (WWTPs) in central Texas are listed on the 303 (d) List of Impaired Waters due to bacterial contamination (possibly due to fecal ...
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Epps, Annalee Carol (2022-05-03)The maintenance and improvement of soil organic carbon (SOC) pools is crucial to global food and fiber production as well as the management of carbon (C) emissions. Because SOC and nitrogen (N) cycles are linked, the effects ...
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Valdez Velarca, Mariana (2016-08-30)The increased demand for organic rice has led to a quick expansion of the industry; however, there has been little research conducted on organic rice systems that are relevant to the unique flooded paddy system that is ...
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Childress, Hannah (2011-10-21)The ubiquitous use of antibiotics has led to an increasing number of antibioticresistant bacterial strains, including strains that are multidrug resistant, pathogenic, or both. Numerous studies have been conducted showing ...
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Caster, Stephen (2010-01-16)A two-year study was conducted in which soil solution, drainage water, and soil core samples were taken from three turfgrass test plots and two sports fields, located on the Texas A&M University campus. The goal was to ...
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McCrary, Kathryn Jordan (2012-07-16)Over the last few decades, increased urbanization has led to a new recognition in stream health – the urban stream or the urban stream syndrome. Understanding urban water quality is important for identifying those factors ...
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Wagner, Kevin (2012-10-19)Excessive bacterial levels are a major water quality concern. Better methods are needed to quantify the proportion of bacterial loading contributed by various sources, and best management practices are needed to restore ...
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Peterson, Jennifer (2014-05-28)The management of agricultural nonpoint source pollution is complex due to the diffuse nature of the various sources. As a result, rather than relying on direct regulation, natural resource agencies generally utilize a ...