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Physical Sciences and Mathematics Commons™
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Articles 1 - 5 of 5
Full-Text Articles in Physical Sciences and Mathematics
Microplastic Accumulation In Terrestrial Gastropods And Soils, Gregory B. Bonilla
Microplastic Accumulation In Terrestrial Gastropods And Soils, Gregory B. Bonilla
Masters Theses
Microplastics (MPs) have become an emerging threat to ecosystems across the world. Transport, impacts, and fates are grossly understudied, especially in terrestrial environments. Current research on MP bioaccumulation has focused mainly on aquatic organisms with little study of terrestrial organisms, including snails where data are nearly nonexistent. To address this, we collected and examined land snails and their surrounding soil for MP content in shell and tissue. From September 11, 2020, to October 25, 2021, cover boards were placed (n=30) along relatively undisturbed sites in hardwood, forested areas, and tall grasses in a Wildlife Management Area (WMA) in Oak Ridge …
The Characterization Of Dynamic Soil Properties And Their Relation To Soil Organic Carbon In East Tennessee Soils, Shannon Marissa Newell
The Characterization Of Dynamic Soil Properties And Their Relation To Soil Organic Carbon In East Tennessee Soils, Shannon Marissa Newell
Masters Theses
Quantifying how dynamic soil properties (DSPs) are affected by different management regimes is essential for understanding how these vital resources can be better managed. The Dewey soil series is a critical soil series in East Tennessee. For this study, the University of Tennessee, Knoxville (UTK) worked alongside the National Cooperative Soil Survey (NCSS) in an effort to better understand the dynamics of the Dewey soil series through a wide range of DSP data. To accomplish this, Dewey soil was collected from five sites which are considered representative of five management regimes: well-managed cropland (WMC), poorly-managed cropland (PMC), well-managed pasture (WMP), …
Evaluation Of Microbiometer As A Tool To Estimate Soil Health In A West Tennessee Cotton Crop, Daniel T. Sain
Evaluation Of Microbiometer As A Tool To Estimate Soil Health In A West Tennessee Cotton Crop, Daniel T. Sain
Masters Theses
Healthy soils are critical for optimized yields and sustainability in agriculture. Soil health testing can provide valuable information on how management practices are affecting soil health. In west Tennessee, existing soil health tests were unable to discern between significant differences in management practices. A new soil health test called microBIOMETER® has been developed by Prolific Earth Sciences® (Montgomery, NY). MicroBIOMETER® utilizes a new methodology for estimating microbial biomass and uses that estimate as a soil health score. This test has not been validated for use in west Tennessee. This research was focused on the validation of microBIOMETER® in a continuous …
Assessment Of Soil Health Under Native Warm-Season Grasses And Different Grazing Management, Kara Leigh Grosso
Assessment Of Soil Health Under Native Warm-Season Grasses And Different Grazing Management, Kara Leigh Grosso
Masters Theses
This research uses analysis of soil quality indicators (SQIs) to compare vegetation species and grazing management over the 2021 grazing season. The soil health effect of the native warm-season grasses (NWSG) big bluestem (BB) (Andropogon gerardii) mixed with indian grass (IG) (Sorghastrum nutans) (BBIG), and switchgrass (SG) (Panicum virgatum), inter-seeded with a 12 species biodiversity mix was investigated in a 5 pressure grazing system (no graze (NG), no rest (NR), early, middle, and late rest (ER, MR, LR)). Additionally, there is a need for inexpensive tools for land owners to assess soil quality, and a validation study …
Public Perceptions Of Salamanders In Great Smoky Mountains National Park, Savannah Blackman
Public Perceptions Of Salamanders In Great Smoky Mountains National Park, Savannah Blackman
Masters Theses
Amphibians receive little attention when it comes to public appreciation or support for their conservation. Despite their ecological importance, salamanders are often little known and overlooked by the general public. To better conserve their rapidly declining populations, it is important to understand and consider public knowledge and attitudes toward salamanders and certain behaviors that negatively affect them—like rock stacking in streams and rivers. The Great Smoky Mountains National Park is referred to as the “Salamander Capital of the World!” as it is home to more than 30 different species of salamander. One issue facing salamander populations within the park is …