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*Fitting functional vegetation into urban landscapes  
 
*Fitting functional vegetation into urban landscapes  
 
*Treating runoff collected from nearby impervious surfaces}}
 
*Treating runoff collected from nearby impervious surfaces}}
<strong>The fundamental components of a bioretention cell are:</strong>
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'''The fundamental components of a bioretention cell are:'''
 
*A 'filter bed' containing an [[Bioretention: Filter media| engineered soil mix]]
 
*A 'filter bed' containing an [[Bioretention: Filter media| engineered soil mix]]
 
*A storage layer of [[Reservoir_gravel|coarse aggregate]]
 
*A storage layer of [[Reservoir_gravel|coarse aggregate]]
 
*[[Planting]] and a finishing surface layer (e.g. [[mulch]])
 
*[[Planting]] and a finishing surface layer (e.g. [[mulch]])
<strong>Additional components may include:</strong>
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'''Additional components may include:'''
 
*An [[underdrain]] to redistribute or remove excess water  
 
*An [[underdrain]] to redistribute or remove excess water  
 
*An [[Liner|impermeable membrane]] to prevent infiltration to soils below
 
*An [[Liner|impermeable membrane]] to prevent infiltration to soils below
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