Skip to Main Content
Performance of engineered soil and trees in a parking lot bioswaleAuthor(s): Qingfu Xiao; Gregory McPherson
Source: Urban Water Journal. 8(4): 241-253
Publication Series: Scientific Journal (JRNL)
Station: Pacific Southwest Research Station
Download Publication (2 MB)
DescriptionA bioswale integrating an engineered soil and trees was installed in a parking lot to evaluate its ability to reduce storm runoff, pollutant loading, and support tree growth. The adjacent control and treatment sites each received runoff from eight parking spaces and were identical except that there was no bioswale for the control site. A tree was planted at both sites. Storm runoff, pollutant loading, and tree growth were measured. There were 50 storm events with a total precipitation of 563.8 mm during February 2007 and October 2008. The bioswale reduced runoff by 88.8% and total pollutant loading by 95.4%. The engineered soil provided a better aeration and drainage for tree growth than did the control’s compacted urban soil. The superior performance of the bioswale demonstrated its potential use for large-scale application in parking lots and roadsides to reduce runoff and support tree growth.
- You may send email to firstname.lastname@example.org to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationXiao, Qingfu; McPherson, E. Gregory. 2011. Performance of engineered soil and trees in a parking lot bioswale. Urban Water Journal. 8(4): 241-253.
Keywordsurban runoff, water quality, engineered soil, bioswale, parking lot
- Performance of two bioswales on urban runoff management
- Precipitation and runoff water quality from an urban parking lot and implications for tree growth
- Calculating stormwater volume and total suspended solids reduction under urban tree canopy in Wisconsin using available research
XML: View XML