Adapting Bioretention Construction Details to Local Practices in Finland

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Adapting Bioretention Construction Details to Local Practices in Finland. / Tahvonen, Outi.

In: SUSTAINABILITY, Vol. 10, 276, 23.01.2018, p. 1-17.

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@article{d261d03e2dbc4f1f87da6ba5287e4ebf,
title = "Adapting Bioretention Construction Details to Local Practices in Finland",
abstract = "Bioretention is a method of storm water management that includes several processes following the natural hydrological cycle. Bioretention, or variations of it, include rain gardens and bioswales, infiltrates, filtrates, evapotranspirates, and help to store and manage storm water run-off. A bioretention cell retains water, removes pollutants, and provides water elements for urban green areas. Although bioretention is a promising method for multifunctional storm water management, its construction details should not be copied from other climatic areas. A direct application may dismiss local conditions, materials, and construction practices. This study aimed to adapt construction details for bioretention to Finnish local practices and conditions and to formulate bioretention constructions that balance water, soil, and vegetation. First, construction details were reviewed, then local adaptations were applied, and finally, the application and two variations of growing media in two construction depths were tested in a test field in Southern Finland. Sandy growing media allowed the efficient retention of water during the first year, but failed to provide vital growth. The use of topsoil and compost in the growing media improved growth, but held high electrical conductivity after infiltration. All the experimental cells in the test field showed activity during the melting periods, both during winter and spring. If bioretention plays a multifunctional role in urban design and engineered ecology, the design parameters should not only focus on storm water quantity, but also on quality management and vegetation growth.",
keywords = "bioretention, storm water management, test field, growing media, heavy rain simulation, vegetation cover, cold climate",
author = "Outi Tahvonen",
year = "2018",
month = "1",
day = "23",
doi = "10.3390/su10020276",
language = "English",
volume = "10",
pages = "1--17",
journal = "SUSTAINABILITY",
issn = "2071-1050",
publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",

}

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TY - JOUR

T1 - Adapting Bioretention Construction Details to Local Practices in Finland

AU - Tahvonen, Outi

PY - 2018/1/23

Y1 - 2018/1/23

N2 - Bioretention is a method of storm water management that includes several processes following the natural hydrological cycle. Bioretention, or variations of it, include rain gardens and bioswales, infiltrates, filtrates, evapotranspirates, and help to store and manage storm water run-off. A bioretention cell retains water, removes pollutants, and provides water elements for urban green areas. Although bioretention is a promising method for multifunctional storm water management, its construction details should not be copied from other climatic areas. A direct application may dismiss local conditions, materials, and construction practices. This study aimed to adapt construction details for bioretention to Finnish local practices and conditions and to formulate bioretention constructions that balance water, soil, and vegetation. First, construction details were reviewed, then local adaptations were applied, and finally, the application and two variations of growing media in two construction depths were tested in a test field in Southern Finland. Sandy growing media allowed the efficient retention of water during the first year, but failed to provide vital growth. The use of topsoil and compost in the growing media improved growth, but held high electrical conductivity after infiltration. All the experimental cells in the test field showed activity during the melting periods, both during winter and spring. If bioretention plays a multifunctional role in urban design and engineered ecology, the design parameters should not only focus on storm water quantity, but also on quality management and vegetation growth.

AB - Bioretention is a method of storm water management that includes several processes following the natural hydrological cycle. Bioretention, or variations of it, include rain gardens and bioswales, infiltrates, filtrates, evapotranspirates, and help to store and manage storm water run-off. A bioretention cell retains water, removes pollutants, and provides water elements for urban green areas. Although bioretention is a promising method for multifunctional storm water management, its construction details should not be copied from other climatic areas. A direct application may dismiss local conditions, materials, and construction practices. This study aimed to adapt construction details for bioretention to Finnish local practices and conditions and to formulate bioretention constructions that balance water, soil, and vegetation. First, construction details were reviewed, then local adaptations were applied, and finally, the application and two variations of growing media in two construction depths were tested in a test field in Southern Finland. Sandy growing media allowed the efficient retention of water during the first year, but failed to provide vital growth. The use of topsoil and compost in the growing media improved growth, but held high electrical conductivity after infiltration. All the experimental cells in the test field showed activity during the melting periods, both during winter and spring. If bioretention plays a multifunctional role in urban design and engineered ecology, the design parameters should not only focus on storm water quantity, but also on quality management and vegetation growth.

KW - bioretention

KW - storm water management

KW - test field

KW - growing media

KW - heavy rain simulation

KW - vegetation cover

KW - cold climate

U2 - 10.3390/su10020276

DO - 10.3390/su10020276

M3 - Article

VL - 10

SP - 1

EP - 17

JO - SUSTAINABILITY

JF - SUSTAINABILITY

SN - 2071-1050

M1 - 276

ER -

ID: 27503663