Multiyear and Seasonal Variation of Infiltration from Storm-Water Best Management Practices

Emerson, Clay H.; Traver, Robert G.

doi:10.1061/(asce)0733-9437(2008)134:5(598)

Cited by 153 publications

(89 citation statements)

References 27 publications

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“…The infiltration rate of a bioretention device can maintain for years without significant degradation [15]. If the on-site soil contains more than 30% of clay (e.g., fine loam or heavier texture), mixing with sand and organic materials is necessary to improve the infiltration rate.…”

mentioning

confidence: 99%

Evolving Bioretentiontechniques for Urban Storm water Treatment

2013

Hydrol Current Res

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mentioning

confidence: 99%

Evolving Bioretentiontechniques for Urban Storm water Treatment

2013

Hydrol Current Res

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“…It's possible the lower amount of shrinking and swelling of the soil during the winter resulted in fewer macropores being formed for preferential flow (Rasse et al 2000). It is also unlikely that the average J-F 2014 temperature of 8.5°C played a large part in reducing infiltration, due to increasing viscosity (Emerson and Traver 2008), as this value was not much lower than the average M-J 2014 temperature of 12.5°C.…”

Section: *Subsoilmentioning

confidence: 99%

“…Organic matter generally increases infiltration through development of stable soil aggregates and provides food and habitat for soil biota, such as earthworms, with both organic matter and earthworms increasing pore space (Greene 2008). Emerson and Traver (2008) found that a temperature increase of 0 to 38°C corresponded to a decrease in dynamic viscosity (µ) of approximately 163% and resulted in a hydraulic conductivity increase from 0.5 to 1.0 cm/hr. Nassif and Wilson (1975) demonstrated in lab experiments how an increase in soil moisture generally decreases infiltration rate with various ground cover and slopes.…”

Section: Bioretention Facilitiesmentioning

confidence: 99%

“…As the infiltration process proceeds and the soil becomes increasingly wet, matric suction become increasingly smaller and the infiltration rate slows to a steady rate (Emerson and Traver 2008). Once the soil is near saturation, infiltration rate is driven primarily by gravimetric …”

Section: Bioretention Facilitiesmentioning

confidence: 99%

“…For example, 30 min of infiltration data recorded at a 5-min interval allowed for 6 ponding depth data points. Infiltration rate was determined by calculating the slope of the best fit linear regression for the drawdown data (Emerson andTraver 2008, Selbig andBalster 2009). Only infiltration rate slopes with R 2 >0.95 were used to eliminate cases where extraneous inflow from other sources, such as a nearby car being washed, occurred.…”

Section: Precipitationmentioning

confidence: 99%

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Root-enhanced Infiltration in Stormwater Bioretention Facilities in Portland, Oregon

Hart¹

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I evaluated the effectiveness of plant roots to increase infiltration rates within stormwater bioretention facilities (SBFs), roadside planter compartments that filter stormwater. SBFs attenuate harmful effects of stormwater by reducing peak flow and retaining pollutants, with increased infiltration that improves both these functions.Researchers have shown that roots can increase infiltration within greenhouse, lab, field, and test SBF settings. However, no researchers have yet measured either the extent to which different root characteristics can increase infiltration or the variation in root characteristics and their effect on infiltration rates among plant assemblages within currently functioning SBFs.To determine if root-enhanced infiltration was occurring within SBFs, I This work strongly suggests plant roots increase infiltration, and thus the primary functions of SBFs. Different root characteristics appear to increase infiltration rate at different depths. Data also show larger-root biomass plants increase infiltration rate to a greater degree than smaller-root biomass plants.I recommend considering several site and facility characteristics when determining the potential for root-enhanced infiltration. When selecting plant species to enhance infiltration, I recommend using several criteria, determining root characteristic iii values at certain depths, considering installation approaches, and accounting for regional climate changes.iv Acknowledgements

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Effects of spatial configuration of imperviousness and green infrastructure networks on hydrologic response in a residential sewershed

Lim

Welty

2017

Water Resources Research

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Green infrastructure (GI) is an approach to stormwater management that promotes natural processes of infiltration and evapotranspiration, reducing surface runoff to conventional stormwater drainage infrastructure. As more urban areas incorporate GI into their stormwater management plans, greater understanding is needed on the effects of spatial configuration of GI networks on hydrological performance, especially in the context of potential subsurface and lateral interactions between distributed facilities. In this research, we apply a three‐dimensional, coupled surface‐subsurface, land‐atmosphere model, ParFlow.CLM, to a residential urban sewershed in Washington DC that was retrofitted with a network of GI installations between 2009 and 2015. The model was used to test nine additional GI and imperviousness spatial network configurations for the site and was compared with monitored pipe‐flow data. Results from the simulations show that GI located in higher flow‐accumulation areas of the site intercepted more surface runoff, even during wetter and multiday events. However, a comparison of the differences between scenarios and levels of variation and noise in monitored data suggests that the differences would only be detectable between the most and least optimal GI/imperviousness configurations.

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Multiyear and Seasonal Variation of Infiltration from Storm-Water Best Management Practices

Cited by 153 publications

References 27 publications

Evolving Bioretentiontechniques for Urban Storm water Treatment

Evolving Bioretentiontechniques for Urban Storm water Treatment

Root-enhanced Infiltration in Stormwater Bioretention Facilities in Portland, Oregon

Effects of spatial configuration of imperviousness and green infrastructure networks on hydrologic response in a residential sewershed

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