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Full-Text Articles in Physical Sciences and Mathematics

Stream Recovery Post Channelization: A Case Study Of Low-Gradient Streams In Central Illinois, Usa, Joseph P. Becker, Eric W. Peterson Jan 2022

Stream Recovery Post Channelization: A Case Study Of Low-Gradient Streams In Central Illinois, Usa, Joseph P. Becker, Eric W. Peterson

Faculty Publications-- Geography, Geology, and the Environment

Stream channelization, which entails reducing the sinuosity of a stream, widening, and in some cases deepening the stream channel, is a widespread practice in agricultural regions. Channelization efforts in central Illinois have significant impacts on the geomorphology, flow regime, and sediment transport both in and adjacent to modified reaches. The goal of this study was to characterize the changes in stream channels by comparing three streams that are at various stages of recovery post channelization, 5 years (1900N), 7 years (Frog), and 35 years (Bray), to an unmodified stream reach (Crooked) and estimate a recovery rate. Measured channel slopes within …


Supporting Data – Floating Gardens, Chicago River, April 29, 2018 To November 19, 2019, Eric Wade Peterson, Phil Nicodemus, Emmett Andrew Spooner Jan 2021

Supporting Data – Floating Gardens, Chicago River, April 29, 2018 To November 19, 2019, Eric Wade Peterson, Phil Nicodemus, Emmett Andrew Spooner

Faculty Publications-- Geography, Geology, and the Environment

Between April 29, 2018 to November 19, 2019, water samples were collected upstream and downstream of a floating garden installed along the Chicago River. At each location, samples were collected at the surface and at 0.3 m below the surface. In-situ measurements of Dissolved Oxygen, Specific Conductance, and Temperature were recorded with a YSI 85. Anion samples were analyzed using a Ion Chromatograph for fluoride (F-), chloride (Cl-), nitrate as nitrogen (NO3-N), phosphate (PO4-3), and sulfate (SO4-2). The available dataset provides the recorded field parameters and the analyzed …


Supporting Data - Recycling Of Nitrate And Organic Matter By Plants In The Vadose Zone Of A Saturated Riparian Buffer, Patience Bosompemaa, Eric Wade Peterson, William Perry, Wondwosen M. Seyoum Jan 2021

Supporting Data - Recycling Of Nitrate And Organic Matter By Plants In The Vadose Zone Of A Saturated Riparian Buffer, Patience Bosompemaa, Eric Wade Peterson, William Perry, Wondwosen M. Seyoum

Faculty Publications-- Geography, Geology, and the Environment

Data from the analysis of nitrate as nitrogen in the soil and soil pore water within the vadose zone of a saturated riparian buffer (SRB). Additional properties measured include: Organic matter (as %), bulk density, moisture content, and porosity. Soil samples were collected pre-growing season (n=57) and post-growing season from two plots (n=29): vegetated plots and barren plots. Statistical comparison of among the treatments, Pre-growing season, plot with plants, and barren plot, and among the different depths, 30 cm, 60 cm, and 90 cm identified significantly different soil NO3--N concentrations. Plots with plants experienced a reduction in …


The Effectiveness Of An Artificial Floating Wetland To Remove Nutrients In An Urban Stream: A Pilot-Study In The Chicago River, Chicago, Il Usa, Eric W. Peterson, Phil Nicodemus, Emmett Spooner, Abigail Heath Jan 2021

The Effectiveness Of An Artificial Floating Wetland To Remove Nutrients In An Urban Stream: A Pilot-Study In The Chicago River, Chicago, Il Usa, Eric W. Peterson, Phil Nicodemus, Emmett Spooner, Abigail Heath

Faculty Publications-- Geography, Geology, and the Environment

Ever expanding urbanized landscapes are increasingly impacting streams that run through them. Among other stressors, urban streams often are host to elevated concentrations of nutrients, salts, and heavy metals. The pollutants, coupled with high temperatures, are drivers of ecosystem degradation in urban streams. The installation of artificial floating wetlands (AFWs) has been successful in mitigating the effects of urbanization in lakes and wastewater treatment ponds, but rarely have they been tested in streams. This pilot-study examined the ability of an AFW to improve water quality in an urban stream. The small, 90 m2 AFW was installed to improve the aquatic …


Geology And Aquifer Sensitivity Of Quaternary Glacial Deposits Overlying A Portion Of The Mahomet Buried Bedrock Valley Aquifer System, Andrew Watson, Eric W. Peterson, David Malone, Lisa M. Tranel Jan 2020

Geology And Aquifer Sensitivity Of Quaternary Glacial Deposits Overlying A Portion Of The Mahomet Buried Bedrock Valley Aquifer System, Andrew Watson, Eric W. Peterson, David Malone, Lisa M. Tranel

Faculty Publications-- Geography, Geology, and the Environment

To characterize the distribution of Holocene and Late Quaternary deposits and to assess the contamination potential of the Mahomet Aquifer, surficial geologic and aquifer sensitivity maps of the Gibson City East 7.5-Minute Quadrangle were created. Geologic data, extent, and thickness of the geologic materials were coupled with LiDAR topographic data and analyzed using ESRI’s ArcGIS 10.6.1. Aquifer sensitivity to contamination was calculated based on the depth to the first aquifer unit, aquifer thickness, and the lithology of the aquifer materials. The surficial geologic mapping identified five lithostratigraphic units: the Cahokia Formation, the Equality Formation, the Henry Formation, and the Yorkville …


Supporting Dataset For Chloride Source Delineation In An Urban-Agricultural Watershed, Deicing Agents Versus Agricultural Contributions, Eric Wade Peterson, Andrew Oberhelman Aug 2019

Supporting Dataset For Chloride Source Delineation In An Urban-Agricultural Watershed, Deicing Agents Versus Agricultural Contributions, Eric Wade Peterson, Andrew Oberhelman

Faculty Publications-- Geography, Geology, and the Environment

Analyses (n = 535) of chloride (Cl-), bromide (Br-), nitrate as nitrogen (NO3-N), sodium (Na+), calcium (Ca2+), and potassium (K+) in stream water, tile-drain water, and groundwater were conducted in an urban-agricultural watershed (10% urban/impervious, 87% agriculture) to explore potential differences in the signature of Cl- originating from an urban source as compared to an agricultural source. Water samples were collected on a weekly interval from February 2018 to February 2019 at three station along the stream and from tile drains and wells. Nearly all surface water …