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Green Infrastructure for Mosquito Control
Published in AnnaMarie Bliss, Dak Kopec, Architectural Factors for Infection and Disease Control, 2023
Bioswales are a great alternative compared to traditional subgrade piping as they convey and infiltrate stormwater runoff through an open trench, are daylit for mitigated performance, and are densely planted. This application of GI is typically cheaper than traditional methods because it requires less regrading and excavation and uses cost-effective materials. Although very simple by design, they can be modified to also include step or micro-pools. The pools can be designed as depressions within the bioswales or use nonerosive material to retain soil for pools at the bottom, as shown in Figure 9.5. This helps encourage additional ecological habitation and dissipates horizontal flow rates that could lead to erosion and flooding (EPA, 2020b). The environmental benefits of bioswales are that they filter sediment and other contaminants before reaching a treatment system or receiving water body.
Categories and types of flood adaptation measures applicable in the design of public spaces
Published in Maria Matos Silva, Public Spaces for Water, 2019
Regarding bioswales, they can be generally characterized as a linear vegetated ground channel designed to collect, treat, infiltrate and, specifically, convey runoff. In addition, stormwater drained from the streets and sidewalks may this way flow directly toward the roots of street trees (Forman, 2014). Bioswales are generally shallow, have a variable section and are commonly covered by native grasses and/or small bushes. This measure therefore also reduces runoff and is capable of naturally filtering some pollutants through the vegetation and underlying engineered underground layers. Bioswales may be easily retrofitted into existing urban areas, especially along streets or integrated in the design of parking lots and other open space areas of public usage. Besides their infrastructural value for flood reduction and biodiversity enhancement, bioswales can additionally contribute as physical boundaries or simply for the encompassing aesthetic comfort value.
Water supply
Published in William Sarni, Tamin Pechet, Water Tech, 2013
In Queens (New York), the Queens Botanical Garden created various bioswales throughout their grounds in 2007. The bioswales not only help ease storm water runoff issues, but have also become an educational tool for discussing water issues in the city.38
Waterways transformation and green stormwater infrastructure: enabling governance for Adelaide’s River Torrens Catchment, Australia
Published in International Journal of Water Resources Development, 2023
Alhassan Ibrahim, Katharine Bartsch, Ehsan Sharifi
In recent decades, policy and scientific discourse on the management of urban waterways has focused on shifting from the application of conventional infrastructure to natural, semi-natural and multifunctional green stormwater infrastructure (GSI). This shift is in response to the worsening climate and human-induced events such as floods, droughts, pollution and degrading natural ecosystems (Dai et al., 2018b). In this article, GSI refers to: techniques that mimic natural hydrologic processes, such as bioswales (vegetated drainage designed to receive and absorb runoff); rain gardens (vegetated depressions) and structural planters that collect and absorb runoff from streets, parking lots, or other impervious surfaces; and constructed stormwater-management wetlands. (Rouse & Bunsier-Ossa, 2013, p. 35)
Strategies to promote the adoption of sustainable drainage by private developers: a case study from Singapore
Published in Urban Water Journal, 2021
J. J. G. Buurman, T. K. Lee, M. S. Iftekhar, S. M. Yu
Shortcomings of traditional stormwater management approaches are forcing a transition in urban stormwater management in many countries, such as the USA, Australia, New Zealand, the UK, China, Singapore and Germany (Radcliffe 2019). Worldwide new approaches appear that move from a narrow focus on flood protection to a broader focus with multiple objectives, such as improving surface water quality, enhancing urban landscaping, providing habitats for wildlife and addressing the urban heat island effect. Rather than quickly evacuating stormwater through pipes and channels, new approaches aim to slow-down and cleanse stormwater on-site, often through vegetation-based, distributed features such as bioswales, retention ponds, green roofs, constructed wetlands and rain gardens (Cettner et al. 2014; Nickel et al. 2014; Keeley et al. 2013; Chui, May, and Ngai 2016). The new approaches for urban stormwater management are known under different names or part of broader paradigms, including Water Sensitive Urban Design (WSUD), Sustainable Urban Drainage Systems (SUDS), Best Management Practices (BMP), Low Impact Development (LID), Green Infrastructure (GI), Landscape Based Stormwater Management (LSM) and Integrated Urban Water Management (IUWM) (Adugna et al. 2019; Fletcher et al. 2014). In this paper, we focus on the Singaporean approach, which is known as the Active, Beautiful, Clean Waters (ABC Waters) Programme (Lim and Lu 2016; PUB 2018a). The ABC Waters Programme takes from other approaches, such as WSUD and LID, but is adapted to the tropical and socioeconomic context in Singapore.