Digital Commons Network^™

Geometric And Temperature Effects On Time Domain Reflectometry Measurements In Soils, Teresa Eileen Dallinger Ms

Lyles School of Civil Engineering Masters Theses

No abstract provided.

Microbial Content Of Abattoir Wastewater And Its Contaminated Soil In Lagos, Nigeria, A. O. Adesemoye, B. O. Opere, S. C. O. Makinde

Department of Plant Pathology: Faculty Publications

Microbial content of wastewater in two abattoirs and the impact on microbial population of receiving soil was studied in Agege and Ojo Local Government Areas in Lagos State, Nigeria. Wastewater samples were collected from each of the abattoirs over three months period and examined for microbial content. Soil samples contaminated with the wastewaters were also collected and analyzed for microbial content as compared to soil without wastewater contamination in the neighborhood (control). Some physico-chemical parameters of the samples such as total dissolved solid, chemical oxygen demand, etc., were examined. The wastewater samples from both abattoirs were highly contaminated; Agege abattoir …

Bacillus Anthracis Virulent Plasmid Px02 Genes Found In Large Plasmids Of Two Other Bacillus Species, Vicki A. Luna, Debra S. King, K. Kealy Peak, Frank Reeves, Lea Heberlein-Larson, William Veguilla, L. Heller, Kathleen E. Duncan, Andrew C. Cannons, Philip Amuso, Jacqueline Cattani

Bioelectrics Publications

In order to cause the disease anthrax, Bacillus anthracis requires two plasmids, pX01 and pX02, which carry toxin and capsule genes, respectively, that are used as genetic targets in the laboratory detection of the bacterium. Clinical, forensic, and environmental samples that test positive by PCR protocols established by the Centers for Disease Control and Prevention for B. anthracis are considered to be potentially B. anthracis until confirmed by culture and a secondary battery of tests. We report the presence of 10 genes (acpA, capA, capB, capC, capR, capD, IS1627, ORF 48, ORF 61, and repA) and the sequence for the …

Managing The Growing Environment For Herbaceous Plant Soils, Larry A. Sagers

All Archived Publications

No abstract provided.

Lockhart Catchment Appraisal 2005, Susan Murphy-White, P Leoni

Resource management technical reports

The Lockhart Catchment is the largest subcatchment of the Avon River Basin covering just over 3.56 million hectares, including 15 Shires running from Quairading and Bruce Rock in the north to Pingrup and Lake King in the south. This document aims to give the reader a starting point from which to further assess larger scale areas of the catchment for the purpose of planning to reverse and improve land degradation and sustainable farming in Western Australia.

Elucidation Of Key Interactions Between In Situ Chemical Oxidation Reagents And Soil Systems, John Michael Harden

Theses and Dissertations

Many soil and aquifer systems in the United States have been subjected to chemical contamination from past industrial and military activities. While many remediation technologies are currently being applied, in situ chemical oxidation (ISCO) is one option that is often favored because of its potential for fast remediation times and high user control. This technology involves the direct injection of chemical oxidizers (e.g. hydrogen peroxide, ozone, or permanganate) into targeted contaminant zones within the subsurface, and it has been proven to be amenable to both BTEX compounds and other volatile organic compounds such as chlorinated solvents. This study had several …

Influence Of Soil Compaction On Nitrogen Volatilization In A Management Intensive Grazing System: Estimation Of Gaseous N Losses Using Mass Balance In Intact Soil Cores, Luke Alan Petersen

Undergraduate Honors Capstone Projects

Increasing concern about the environmental impacts of greenhouse gases and PM 2.5 particulates has prompted many researchers to examine the processes of gaseous loss of nitrogen (N) from agricultural land. As agricultural production becomes more competitive and producers strive to become more efficient by reducing input costs, they will increasingly employ practices such as the rotational stocking, also called Management Intensive Grazing (MIG). MIG utilizes high animal stocking rates for short periods of time to efficiently harvest pasture crops. Unfortunately, MIG also produces relatively high concentrations of livestock excreta. This has caused intensive grazing practices to become a focal point …

Soil Type Identification Using Time Domain Relectometry, Carlos Eduardo Zambrano Narvaez

Lyles School of Civil Engineering Masters Theses

No abstract provided.

Crop Updates 2006 - Farming Systems, Wayne Pluske, Bill Bowden, Craig Scanan, Stephen Davies, Chris Gazey, Peter Tozer, Derk Bakker, Louise Barton, David Gatter, Renee Buck, Daniel Murphy, Christoph Hinz, Bill Porter, Meredith Fairbanks, Nicolyn Short, Ian Foster, James Fisher, Doug Abrecht, Mario D'Antuono, Tracey M. Gianatti, Paul Carmody, Frank D'Amden, Rick Llewellyn, Michael Burton, Caroline Peek, Nadine Eva, Chris Carter, Megan Abrahams, Andrew Blake, Paul Blackwell, Sylvian Pottier, Michael Robertson, Greg Lyle, Lisa Brennan, Tony J. Vyn, Simon Teakle, Peter Norris, Jeff Russell, James Fisher, Roy Murray-Prior, Deb Pritchard, Mike Collins, Greg Hamilton, Rob Hetherington, Andrew Van Burgel, Cliff Spann

Crop Updates

This session covers nineteen papers from different authors:

SOIL AND NUTRIENT MANAGEMENT

1. Inve$tigating fertili$er inve$tment, Wayne Pluske, Nutrient Management Systems

2. KASM, the potassium in Agricultural System Model,Bill Bowden and Craig Scanlan, DAWA Northam and UWA, School of Earth and Geographical Sciences

3. Long term productivity and economic benefits of subsurface acidity management from surface and subsurface liming, Stephen Davies, Chris Gazey and Peter Tozer, Department of Agriculture

4. Furrow and ridges to prevent waterlogging, Dr Derk Bakker, Department of Agriculture

5. Nitrous oxide emissions from a cropped soil in Western Australia, Louise Barton^{1 …}

Blood Lead Concentrations In The Cat Population Of Tampa, Florida, Liesl M. Wiesen

USF Tampa Graduate Theses and Dissertations

Where lead pollutes urban soils, both human and animals risk exposure. This exposure gives rise to similar health risks across species. A group of 50 outdoor living cats from inner city Tampa, Florida were tested for blood lead concentration (BLC). Most cats had no measurable lead loads, 14 percent had levels less than or equal to 6 micrograms per decaliter. Soil samples were taken from the home location of each cat. None of these samples, which ranged from 2.6 microgram per gram to 170 micrograms per gram, had hazardous levels of lead. Overall, BLCs were lower than expected. In addition, …

Relationships Among Arthropods, Herbaceous-Shrub Layer Vegetation, And Soil In An Early Succession Pine Stand., Brent Burt, Richard N. Conner, Saenz Daniel

Faculty Publications

During spring and early summer, shrub- and herbaceous-level vegetation provides nesting and foraging habitat for many shrub-habitat birds. We examine relationships among arthropod biomass and abundance, foliage leaf surface area and weight, vegetation ground cover, soil characteristics, relative humidity, and temperature to evaluate what factors may influence arthropod food resources for birds.

Delineating Anomalous Layers In Soil Profiles Using Seismic Surface Wave Methods, Xiaohui Jin

UNLV Retrospective Theses & Dissertations

Soil profiles with an included carbonate-cemented layer, a high velocity layer (HVL), are commonly encountered in Las Vegas, Nevada and other arid settings. Knowledge of the presence, geometry and hardness of the carbonate-cemented inclusions is important for civil engineering site investigation. Active-source seismic surface wave methods were tested to detect this HVL. An optimization method consisting of simulated annealing followed by linearized inversion was applied to the data; The purpose of this study was to improve the ability to detect and delineate the HVL using surface wave methods. Two approaches are followed. One is inversion of the effective dispersion curve …

Ec06-783 Watermark Granular Matrix Sensor To Measure Soil Matric Potential For Irrigation Management, Suat Irmak, Jose O. Payero, Dean Eisenhauer

University of Nebraska-Lincoln Extension: Historical Materials

Extension Circular 06-783 discusses Watermark Granular Matrix Sensor to Measure Soil Matric Potential for Irrigation Management.

G06-1621 Soybean Inoculation: Understanding The Soil And Plant Mechanisms Involved (Part One Of A Two-Part Series), Lori J. Abendroth, Roger Wesley Elmore, Richard B. Ferguson

University of Nebraska-Lincoln Extension: Historical Materials

Nitrogen gas (N₂) comprises nearly 80 percent of total atmospheric gases, yet most organisms are unable to use N2 as a source of nitrogen. Legumes, such as soybean, are able to capture atmospheric nitrogen and utilize it through the process of nitrogen fixation. This NebGuide is part one of a two-part series on soybean inoculation. Here, we will investigate how soybean inoculation occurs and which environmental conditions impact nitrogen fixation.

Hillman And Narrogin Zones (Blackwood Zones 8 And 9) : Rapid Catchment Appraisal, Henry Brockman

Resource management technical reports

The aims of this Resource Management Technical Report are to assess the current extent of salinity and other natural resource degradation hazards within the Hillman and Narrogin Zones of Western Australia. These zones cover 409,000 hectares in South West Western Australia, including the towns of Narrogin and Darkan. It also includes benchmarks and sustainability indicators that can be used by landholders and planners to determine the best management options for the area.

Ravensthorpe Area Catchment Appraisal 2006, A Massenbauer

Resource management technical reports

The Ravensthorpe area covers 861, 000 hectares. Ninety percent of the study area covered in this report falls within the Ravensthorpe Shire, Western Australia. This document aims to give the reader a starting point from which to further assess larger scale areas of the catchment for the purpose of planning to reverse and improve land degradation and sustainable farming in Western Australia.

Soil-Landscapes Of Western Australia's Rangelands And Arid Interior, Peter J. Tille

Resource management technical reports

This report documents the process of placing the most recent and detailed mapping of Western Australia's Rangelands and Arid interior that is available into a hierarchy of soil-landscape mapping units. It also provides descriptions of the soil-landscape regions, provinces and zones identified.

Soil Phosphorus Levels In Residential Lawns And Comparisons Among Four Land Uses In Springfield, Missouri, Timothy R. Davis

MSU Graduate Theses

Eutrophication of surface waters due to high phosphorus (P) concentrations is an important water quality concern in Greene County, Missouri. Phosphorus enrichment has been linked to a variety of non-point sources including runoff from both agricultural and urban land uses. Soil P has been shown to be a source of P in runoff. The differences in soil P among different land uses may provide insight into which land use contributes more P in runoff. This study examines the soil composition, geochemistry and total P concentration of surface soil (0-5cm) in four land uses in Greene County, Missouri. The land uses …

Remediation Of Aromatic Hydrocarbons In Low Permeability Soils: Updating The Remediation Decision Tree (Synthesis Study), Inez Hua, Andy Hopf

JTRP Technical Reports

Because of the large number of technologies for in situ remediation, the very different types of contaminants to which these technologies are applicable, and the wide range of field conditions, it can be difficult to choose an optimal technology for a specific site. Sorting and prioritizing the various factors which contribute to the success of a particular clean-up can be daunting. Furthermore, non-technical factors, such as those in the legal, political, or financial realm, may also influence which technology is ultimately chosen. Most in situ treatment methods are effective in permeable soil. However, much of Indiana soil is low-permeability, so …

The Bioturbation Transport Of Chemicals In Surface Soils, Maria D. Rodriguez

LSU Master's Theses

Large quantities of chemicals, such as pesticides, fertilizers, and industrial wastes, have been found throughout the environment raising concerns due to their ecological impacts and implications to human health. Soil is the most important repository of many organic chemicals in the environment. The objective of the present study was to determine the importance of the soil solid phase in the transport of chemicals in soils, and yield quantitative information to better describe bioturbation and its role in the movement of soil particles. Vertical movement of chemicals in the soil solid phase occurs by mixing mechanisms, such as bioturbation, cryoturbation, and …

Retention And Transport Of Arsenic In Soils, Hua Zhang

LSU Doctoral Dissertations

Arsenic transport in soils and aquifers is highly dependent on the adsorption-desorption reactions in the solid phase. Results from our kinetic batch experiments indicated that adsorption of arsenate [As(V)] was highly nonlinear and strongly kinetic. Desorption of As(V) were hysteretic in nature and a significant amount of As(V) was irreversibly adsorbed on all soils. Results from column experiments indicated strong As(V) retardation followed by slow release or extensive tailing of the breakthrough curves (BTCs). Sharp decrease in As(V) concentration during flow interruption verified the extensive non-equilibrium condition which was likely due to the dominance of kinetic retention processes. We evaluated …

Soil Community Structure And Litter Decomposition Under Irrigated Eucalyptus Globulus In South Western Australia, Derek J. Swarts

Theses: Doctorates and Masters

Plantations provide a range of benefits, including the potential to ameliorate salinity and soil erosion, enhance biodiversity, and provide timber and wood chips. They are increasingly important because of their role in carbon sequestration (Adolphson, 2000; Anonymous, 2005; Jones et al. , 2005; Kozlowski, 2002; Paul and Polglase, 2004). Recent research has highlighted the connection between plantation health and soil fertility (Johnston and Crossley Jr, 2002). Within an Australian context there is little published data on the composition of the soil and litter fauna and their contribution to litter decomposition under plantation systems (Adolphson, 2000). The Albany Effluent Irrigated Tree …

Nonintrusive Mapping Of Near-Surface Preferential Flow, R. S. Freeland, Lameck O. Odhiambo, J. S. Tyner, J. T. Ammons, W. C. Wright

Department of Biological Systems Engineering: Papers and Publications

A unique survey protocol has been developed that maps near-subsurface preferential flow using integrated ground-penetrating radar (GPR) and a differential geographical positioning system (DGPS). The survey protocol consists of a mobile GPR system that spirals outward along a prescribed course, continuously gathering subsurface data for an extended period. Metered water is applied to a centrally located water-ponding ring, after first capturing the initial dry-state pattern signatures. The water radiates outward beneath the surface as it follows preferential flow pathways, which the GPR instrumentation spiraling above highlights. After data are collected, pre- and post-water time-elapsed images profiles are segmented by pattern …