Hydraulic and Hydrologic Performance of Residential Rain Gardens

Jennings, Aaron A.; Berger, Michael A.; Hale, J.D.

doi:10.1061/(asce)ee.1943-7870.0000967

Cited by 35 publications

(22 citation statements)

References 9 publications

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“…Bioretention is a 'planted depression', such as a rain garden, method to infiltrate rain water runoff [4]. The physical and chemical effects of this facility, such as reducing peak flow by infiltrating storm water runoff and removing nonpoint pollutants in rainfall, were successfully demonstrated in many studies [6][7][8][9][10][11][12]. Furthermore, bio-retention is considered as one of the most effective Low Impact Development facilities from aesthetical, ecological, and economic perspectives, because bio-retention serves as urban green spaces that improve urban landscape values and are known for low cost installations and easy maintenance [13].…”

Section: Introductionmentioning

confidence: 99%

Exploring Psychological and Aesthetic Approaches of Bio-Retention Facilities in the Urban Open Space

Kim

2017

Sustainability

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Over the last decades, a number of bio-retention facilities have been installed in urban areas for flood control and green amenity purposes. As urban amenity facilities for citizens, bio-retentions have a lot potential; however, the literature on bio-retentions focused mostly on physiochemical aspects like water quality and runoffs. Hence, this paper aims to explore psychological aspects of bio-retentions such as perceptions and landscape aesthetic value for visitors. In order to achieve this purpose, the study employed on-site interviews and questionnaires in the chosen three case studies as research methodology. For the 3 different locations of bio-retention facilities, interviews and questionnaires were carried out. The surveys of 100 bio-retention users were conducted, investigating their general perceptions and landscape aesthetics of the bio-retention facilities. The paper found that only 34% of the interviewees recognised bio-detention facilities, illustrating that most visitors were not aware of such facilities and were unable to distinguish the differences between bio-retention and conventional gardens. On the other hand, the majority of interviewees strongly supported the concept and function of bio-retentions, especially those who recognised the differences in planting species with conventional urban open spaces. Such main findings also encourage further studies of seeking quantitative values by conducting a correlation analysis between the functions and aesthetics of bio-retention facilities.

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Section: Introductionmentioning

confidence: 99%

Exploring Psychological and Aesthetic Approaches of Bio-Retention Facilities in the Urban Open Space

Kim

2017

Sustainability

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“…The field Ksat in GSI systems should not be treated as a constant. Rather, it can change over time due to different factors that cause either an increase or decrease in infiltration rates (Jennings, Berger, & Hale, ). Also, field Ksat can vary spatially by orders of magnitude depending on many factors (Figure ) such as soil texture, plant root structure and morphology, sediment deposition, porosity, and soil moisture (Ahmed et al, ; Asleson et al, ; Olson et al, ).…”

Section: Causes Of Temporal and Spatial Variability Of Field Ksatmentioning

confidence: 99%

Temporal and spatial variation of infiltration in urban green infrastructure

Ebrahimian

Sample-Lord

Wadzuk

et al. 2019

Hydrological Processes

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Infiltration is the primary mechanism in green stormwater infrastructure (GSI) systems to reduce the runoff volume from urbanized areas. Soil hydraulic conductivity is most important in influencing GSI infiltration rates. Saturated hydraulic conductivity (Ksat) is a critical parameter for GSI design and post-construction performance. However, Ksat measurement in the field is problematic due to temporal and spatial variability and measurement errors. This review paper focuses on a comparison of methods for in-situ Ksat measurement and the causes of temporal and spatial variations of Ksat within GSI systems. Automated infiltration testing methods, such as the Modified Philip-Dunne (MPD) and SATURO infiltrometers, show promise for efficient Ksat measurements. Soil Ksat values can change over time and substantially vary throughout a GSI, which can be attributed to multiple factors, including but not limited to temperature changes, soil composition and properties, soil compaction level, plant root morphology and distribution, biological and macrofauna activities in the soil, inflow sediment characteristics, quality of infiltrating water, and measurement errors. There is evidence that infiltration rates in vegetated urban GSI systems are sustained given an appropriate GSI design, reasonable concentration of suspended sediments in the inflow runoff, and routine maintenance procedures.These observations indicate that clogging can be counteracted by processes that tend to increase the soil hydraulic conductivity (e.g., plant root and biological activities). This self-sustainability underlines that infiltration-based GSI systems are a reliable long-term stormwater management solution. Recommendations on how to incorporate the temporal changes of Ksat in GSI design and on obtaining a spatiallyrepresentative Ksat for the GSI design are presented. K E Y W O R D Sgreen infrastructure, hydraulic conductivity, infiltration, infiltrometer, saturated hydraulic conductivity, soil, stormwater, urban areas

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“…Three articles were published in 2015 that investigated the hydraulic performance of bioretention cells (Barbu et al, 2015;Jennings et al, 2015;Roy-Poirier et al, 2015). Jennings et al (2015) outlined an algorithm to assess the hydraulic performance of rain gardens using local meteorological data, and concluded that the effectiveness of rain gardens in Ohio was dominated by infiltration rate. Another useful aspect of Jennings et al Enhanced Media.…”

Section: Design For Optimization Studies Related Tomentioning

confidence: 99%

Urban Stormwater Characterization, Control, and Treatment

Vogel

Moore²

2016

Water Environment Research

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The following review presents a synthesis of 181 journal articles published during 2015 that represent progress toward better characterizing, controlling, and treating urban stormwater runoff. The review is structured by general topical areas related to (1) stormwater quality and quantity characterization; (2) engineered stormwater control and treatment practices, including erosion and sediment control, stormwater ponds, constructed stormwater wetlands, bioretention, permeable pavement, greenroofs, and rainwater harvesting systems; and (3) watershed-scale modeling and optimization of stormwater control and treatment practices. Common research themes emerging from this collection of studies include potential to enhance hydrologic and pollutant treatment performance of stormwater practices via media amendments and the use of innovative outlet control structures, as well as development of a more mechanistic understanding of hydrologic and water-quality functions to inform modeling and performance predictions. These studies serve to expand the field's knowledge base and will inform future efforts to further improve stormwater control and treatment at various spatial and temporal scales.

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Hydraulic and Hydrologic Performance of Residential Rain Gardens

Cited by 35 publications

References 9 publications

Exploring Psychological and Aesthetic Approaches of Bio-Retention Facilities in the Urban Open Space

Exploring Psychological and Aesthetic Approaches of Bio-Retention Facilities in the Urban Open Space

Temporal and spatial variation of infiltration in urban green infrastructure

Urban Stormwater Characterization, Control, and Treatment

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