Evidence details

rebecca.killalea@canberra.edu.au on 16 Mar 2022
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Study

Citation
Hou, L., Yang, H., & Li, M. (2013). Removal of chemical oxygen demand and dissolved nutrients by a sunken lawn infiltration system during intermittent storm events. Water Science and Technology.
Study description
This study examined the effectiveness of sunken lawn infiltration systems in removing nutrients and COD from stormwater. The study used infiltration columns to assess the effectiveness of two lawn species (Poa pratensis and Lolium perenne) with a control of soil only.

Response

Cause term/trajectory
Plants (riparian)
Cause description
Sunken lawn infiltration systems planted with two species (Poa pratensis and Lolium perenne)
Effect term/trajectory
Water quality - oxygen (Decrease)
Effect description
The effluent from the two planted systems had a higher removal efficiency of Chemical oxygen demand (COD) than the soil only treatment system. The removal efficiency of Poa pratensis was 81.74+/-6.00%, Lolium perenne was 76.13+/- 7.97% and soil only was 59.93+-2.2%.
Response measure type
Mean difference

Design

Source data
Laboratory
Study type
Manipulation
Study design
Control/reference vs. treatment/impact (no before)
Number of independent control or reference sampling units
1
Number of indendent impact or treatment sampling units
1 control, 2 treatments
Sample size used in analysis
27
Design description
3 experimental columns used for the control and 2 treatments. Each storm cycle was repeated 9 times.

Context

Climate
Temperate
Country
China
Habitat
Artificial
Spatial extent
Other
Temporal extent
Months