Skip to Main Content
The online Taylor & Francis publications platform for International Association for Hydro-Environment Engineering and Research
1,373
Views
45
CrossRef citations to date
0
Altmetric
Research articles

Performance of engineered soil and trees in a parking lot bioswale

&
Pages 241-253 | Received 23 Sep 2010, Accepted 06 Jun 2011, Published online: 08 Aug 2011
 

Abstract

A 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.

Acknowledgements

We would like to express our appreciation to Skip Mezger and Christina DeMartini Reyes at the Buildings and Grounds Division, University of California Davis for their assistance in site selection, field installation, and site maintenance. We thank Matt Forrest, Dennis Jackson, and Mike Lemaire at Buildings and Grounds Services of University of California for their assistance installing the irrigation system and the parking lot stripping. We appreciate Vince Lampman and his crew members at the Ag and Industrial Services, University of California Davis for their assistance installing the system. We thank Damon Williams and his crew at Operations and Maintenance Electrical for their assistance making the electricity available to the site, and Henry Tsai and Henry Luc for planting and caring for the trees. We also thank Chris Cioni at O&M Utilities, University of California Davis, Cliff Contreras and Roberta Devine at Transportation and Parking Services, University of California Davis for their support on this project. Our thanks also go to Mike Mata at the Department of Land, Air, and Water Resources, University of California Davis for his assistance in the measurement system calibration. This research was supported in part by funds provided by the US Forest Service Pacific Southwest Research Station and by the National Urban and Community Forestry Advisory Council (NUCFAC).

Reprints and Corporate Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

To request a reprint or corporate permissions for this article, please click on the relevant link below:

Academic Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

Obtain permissions instantly via Rightslink by clicking on the button below:

If you are unable to obtain permissions via Rightslink, please complete and submit this Permissions form. For more information, please visit our Permissions help page.