Effect of plant species on water balance in a pilot-scale horizontal subsurface flow constructed wetland planted with Arundo donax L. and Cyperus alternifolius L. - Two-year tests in a Mediterranean environment in the West of Sicily (Italy)

- Giant reed-unit showed higher cumulative ET than umbrella sedge-unit for both the years.
- WUE of giant-reed unit was the best because of the higher dry aboveground biomass.
- ET rates of plant species influences the amount of water at outflow of CWs.
- ET rates and Kc values of plant species have to be considered when designing a CW.