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- Keyword
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- Soil erosion--Iowa--Cedar Falls--Prevention; Best management practices (Pollution prevention)--Iowa--Dry Run Creek (Black Hawk County); (1)
- Water--Pollution--Iowa--Dry Run Creek (Black Hawk County); Land cover--Iowa--Dry Run Creek (Black Hawk County); (1)
- Wetlands--Iowa--Black Hawk County; Water--Pollution--Environmental aspects--Iowa--Black Hawk County; (1)
Articles 1 - 3 of 3
Full-Text Articles in Physical Sciences and Mathematics
Understanding The Critical Role Of A Wetland In Maintaining The Ecosystem: A Case Study, Sushil Tuladhar
Understanding The Critical Role Of A Wetland In Maintaining The Ecosystem: A Case Study, Sushil Tuladhar
Dissertations and Theses @ UNI
Beaver Valley Wetland in north-east Iowa was studied to determine its functionality in filtering incoming contaminants from the surrounding agricultural fields. The study was conducted from May through November of 2011. Altogether 78 water samples (from 13 sites), 84 soil samples (from 14 sites), and some sediment samples were collected for chemical analysis. Heavy metals in three different soil categories, such as surface, 6” deep, and sediments were found to be at or below the acceptable concentrations, indicating no immediate concern for metal toxicity in the wetland environment. The chemical tracers that were used to study the sub-surface flow regime …
A Bank Erosion Hazard Index (Behi) Study Of Dry Run Creek, Cedar Falls, Iowa, Cara Wright
A Bank Erosion Hazard Index (Behi) Study Of Dry Run Creek, Cedar Falls, Iowa, Cara Wright
Honors Program Theses
Dry Run Creek is a watershed located in Cedar Falls; Iowa and it is on a list of the state's impaired waterways. One reason it may be impaired is that there is excessive erosion in the stream. This study assessed the Bank Erosion Hazard Index of portions of the creek to determine erosion hotspots. The majority of the banks in all the branches had a Low score, meaning that the BEHI was less than 11.9. The minimum BEHI score is O and the maximum score is 40. The lower the score, the better the condition of the bank. Portions of …
Temporal Dynamics Of Nutrient Flux Across Hydrologic Unit Boundaries, Md. Aminul Haque
Temporal Dynamics Of Nutrient Flux Across Hydrologic Unit Boundaries, Md. Aminul Haque
Dissertations and Theses @ UNI
The study was done in Dry Run Creek watershed, a small sub-urban watershed in the northwestern part of Black Hawk County, Iowa. Different hydrologic units like, wetland, agricultural area, urban area, and stream channels were compared in terms of nutrient transport. Soil, surface water, and groundwater samples were collected from May, 2012 to October, 2012. Among the hydrologic units, agricultural land has the highest organic matter percentages, infiltration rate, soil nitrate, and total phosphorus. High infiltration rate and amount of nutrients in agricultural soil made those areas more vulnerable to vertical infiltration of pollutants. Agricultural and urban soils had similar …