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Full-Text Articles in Sustainability
Effects Of Different Soil Media, Vegetation, And Hydrologic Treatments On Nutrient And Sediment Removal In Roadside Bioretention Systems, Paliza Shrestha, Stephanie E. Hurley, Beverley C. Wemple
Effects Of Different Soil Media, Vegetation, And Hydrologic Treatments On Nutrient And Sediment Removal In Roadside Bioretention Systems, Paliza Shrestha, Stephanie E. Hurley, Beverley C. Wemple
College of Agriculture and Life Sciences Faculty Publications
Water quality performance of eight roadside bioretention cells in their third and fourth years of implementation were evaluated in Burlington, Vermont. Bioretention cells received varying treatments: (1) vegetation with high-diversity (7 species) and low-diversity plant mix (2 species); (2) proprietary SorbtiveMedia™ (SM) containing iron and aluminum oxide granules to enhance sorption capacity for phosphorus; and (3) enhanced rainfall and runoff (RR) to certain cells (including one with SM treatment) at three levels (15%, 20%, 60% more than their control counterparts), mimicking anticipated precipitation increases associated with climate change. A total of 121 storms across all cells were evaluated in 2015 …
Soil Media Co2 And N2O Fluxes Dynamics From Sand-Based Roadside Bioretention Systems, Paliza Shrestha, Stephanie E. Hurley, E. Carol Adair
Soil Media Co2 And N2O Fluxes Dynamics From Sand-Based Roadside Bioretention Systems, Paliza Shrestha, Stephanie E. Hurley, E. Carol Adair
College of Agriculture and Life Sciences Faculty Publications
Green stormwater infrastructure such as bioretention is commonly implemented in urban areas for stormwater quality improvements. Although bioretention systems' soil media and vegetation have the potential to increase carbon (C) and nitrogen (N) storage for climate change mitigation, this storage potential has not been rigorously studied, and any analysis of it must consider the question of whether bioretention emits greenhouse gases to the atmosphere. We monitored eight roadside bioretention cells for CO2-C and N2O-N fluxes during two growing seasons (May through October) in Vermont, USA. C and N stocks in the soil media layers, microbes, and aboveground vegetation were also …