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Student Poster Presentations

MEET THE POSTER AUTHORS:  MONDAY, april 8, 9:30-10:15 am

Assessing Soil Environs of Established Vegetation in Remediated Areas of Oak Ridge National Laboratory Campus
Ross, S., University of Tennessee, Jean-Philippe, S., University of Tennessee, Essington, M., University of Tennessee, Zobel, J., University of Tennessee, Giffen, N., Oak Ridge National Laboratory
 The Oak Ridge National Laboratory (ORNL), formally known as X-10 or Clinton Laboratory, was established during the early 1940s to house the world’s first nuclear reactor. The laboratory was used for the production and separation of plutonium during World War II, where significant amounts of chemical pollution were generated over several decades and deposited into the soil, buried, and directly discharged into local waterways. A belowground assessment of landscape vegetation was conducted across the ORNL campus to determine baseline soil conditions. Soil samples were obtained from ten percent of the trees (144 out of 1160) growing on site within the inventory. Basic soil analyses such as pH, carbon and nitrogen levels, total elemental concentration were analyzed. This work will inform future tree management practices and create a precedent for ongoing urban forestry research efforts at ORNL.

Compare and Contrast Urban Vegetation Ordinances across the Southern United States
Kripa Neupane*, Graduate Student, Department of Forestry, Mississippi State University; Dr. Donald L. Grebner, Professor, Department of Forestry, Mississippi State University; Dr. Jason S. Gordon, Associate Extension Professor, Department of Forestry, Mississippi State University
The complexity of urban areas like population growth, urbanization, and other social and environmental hazards, within the mosaic of private and public vegetation, necessitates regulation to manage numerous benefits of urban vegetation. As the urban population continues to increase, regulations for governing vegetation become increasingly common. There is a need to characterize and classify such ordinances, identify their best design, implementation, and enforcement practices. Thus, this study aims to compare and contrast urban vegetation ordinances across the twelve states of the Southern United States. Data will be collected from online service Municode (www.municode.com) which publishes local codification of municipal legislation for every state. We will use content analysis to identify and describe trends and structure in the language of vegetation ordinances available on Municode. The NVivo computer software will be used to analyze the similarities and differences among terms and phrases in the vegetation related ordinances. This software organizes the large volume of words into fewer content categories based on explicit rules of coding. Then coding scheme guiding coders are developed to make the decision in content analysis. Expected results will identify similarities and differences between a host of vegetative, landscape and tree regulations, identify several types of communities that vary according to similarities and differences of ordinances, physiographic and sociodemographic data and also describe types of communities with effective and not so effective ordinances. Our findings will generate recommendations for making ordinances easier to develop, more beneficial, and more understandable for end users than many current ordinances.

Developing Crapemyrtle Pollen Sampling Methods for A Neonicotinoid Pathway Study
Asija Rice, Southern University And A&M College, Baton Rouge, LA
Crapemyrtle bark scale is an exotic pest infesting crapemyrtles and has become a major concern because of its potential impact on other economically or ecologically important plant species. Currently the most effective chemical control against CMBS is provided by foliar or drench applications of insecticides belonging to the neonicotinoid class, such as imidacloprid, dinotefuran, thiamethoxam, and clothianidin. Neonicotinoids are an important tool for an integrated pest management (IPM) strategy, however, they are systemic insecticides that their molecule or bioactive metabolites may potentially being transferred to nectar and pollen, causing concerns that they may create a hazard for beneficial insects and pollinators.