Water Quality Characterisitcs of Three Rain Gardens Located Within the Twin Cities Metropolitan Area, Minnesota

Elliott, Sarah

doi:10.15365/cate.4142011

Cited by 9 publications

(3 citation statements)

References 57 publications

(35 reference statements)

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“…There are also increased oxygen levels closer to the surface, supporting autotrophic nitrification and aerobic metabolism, which are aerobic processes. Other bioswale monitoring studies found most total nitrogen [59] and nitrate [60] to be produced in shallow soils, suggesting that nitrification mainly occurs in the upper soil layers.…”

Section: Soil Mineralization and Nitrificationmentioning

confidence: 93%

Quantifying Urban Bioswale Nitrogen Cycling in the Soil, Gas, and Plant Phases

Shetty

Hoch

et al. 2018

Water

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Bioswales are a common feature of urban green infrastructure plans for stormwater management. Despite this fact, the nitrogen (N) cycle in bioswales remains poorly quantified, especially during dry weather in the soil, gas, and plant phases. To quantify the nitrogen cycle across seven bioswale sites located in the Bronx, New York City, we measured rates of ammonium and nitrate production in bioswale soils. We also measured soil nitrous oxide gas emissions and plant foliar nitrogen. We found that all mineralized nitrogen underwent nitrification, indicating that the soils were nitrogen-rich, particularly during summer months when nitrogen cycling rates increase, as indicated by higher levels of ammonium in the soil. In comparison to mineralization (0 to 110 g N m−2 y−1), the amounts of nitrogen uptake by the plants (0 to 5 g N m−2 y−1) and of nitrogen in gas emissions from the soils (1 to 10 g N m−2 y−1) were low, although nitrous oxide gas emissions increased in the summer. The bioswales’ greatest influx of nitrogen was via stormwater (84 to 591 g N m−2 y−1). These findings indicate that bioswale plants receive overabundant nitrogen from stormwater runoff. However, soils currently used for bioswales contain organic matter contributing to the urban nitrogen load. Thus, bioswale designs should use less nitrogen rich soils and minimize fertilization for lower nitrogen runoff.

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Section: Soil Mineralization and Nitrificationmentioning

confidence: 93%

Quantifying Urban Bioswale Nitrogen Cycling in the Soil, Gas, and Plant Phases

Shetty

Hoch

et al. 2018

Water

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“…Dfa. These devices retain metals [99] (although not all with the same efficiency [75]), suspended solids and nutrients [100], but sometimes they can produce nitrates and component phosphorus [101]. Denitrifying bacterial communities are altered by the surrounding soil physiochemistry [102].…”

Section: Regulation Services: Water Qualitymentioning

confidence: 99%

Scientific Evidence behind the Ecosystem Services Provided by Sustainable Urban Drainage Systems

García

Cerezal

2022

Land

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Urban green infrastructure such as sustainable urban drainage systems are potential providers of ecosystem services. This paper reviews the field studies that empirically verify the potential benefits of SUDS. The cultural, provisioning, supporting, and regulating ecosystem services investigated in real cases have been studied and classified according to climatology (except for the control of urban hydrology, which has been widely corroborated). Although successful cases of runoff decontamination are numerous, there is heterogeneity in the results of the systems beyond those associated with climatic differences. The other ecosystem services have not been as widely studied, giving very variable and even negative results in some cases such as climate change control (in some instances, these techniques can emit greenhouse gases). Installations in temperate climates are, by far, the most studied. These services derive from the biological processes developed in green infrastructure and they depend on climate, so it would be advisable to carry out specific studies that could serve as the basis for a design that optimizes potential ecosystem services, avoiding possible disservices.

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“…Due to the lot-level nature of raingardens and downspout disconnections, very few studies have investigated the quantified treatment efficiencies of either of these BMPs. Although there are many studies that have quantified the effects of raingardens, many of the BMPs described in these studies are defined as BR cells under the nomenclature of this thesis (Elliott et al 2011;Guo and Luu 2015;Yergeau and Obropta 2013).…”

Section: Raingardens and Downspout Disconnectionsmentioning

confidence: 99%

Integrated planning framework for urban stormwater management: one water approach

Hager

Mian

et al. 2021

Sustainable and Resilient Infrastructure

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All model development and validation was conducted by Mr. Hager under the supervision of Drs. Rehan Sadiq and Kasun Hewage.A manuscript titled "Performance of low impact development best management practices: a critical review" has been published in the journal Environmental Reviews. That paper was comprised of parts of Chapter 2 of this thesis. The paper was written by James Hager under the supervision of Drs. Rehan Sadiq and Kasun Hewage. Dr. Guangji Hu was also an author on this paper due to his contributions during the paper writing process, including help with paper layout and technical reviews.

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Water Quality Characterisitcs of Three Rain Gardens Located Within the Twin Cities Metropolitan Area, Minnesota

Cited by 9 publications

References 57 publications

Quantifying Urban Bioswale Nitrogen Cycling in the Soil, Gas, and Plant Phases

Quantifying Urban Bioswale Nitrogen Cycling in the Soil, Gas, and Plant Phases

Scientific Evidence behind the Ecosystem Services Provided by Sustainable Urban Drainage Systems

Integrated planning framework for urban stormwater management: one water approach

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