the high
photosynthetic activity of the species is linked to high LAI and total
chlorophyll levels. It is clear that high photosynthetic efficiency
determines a strong effect on the rate of WUE by the plant species.
If we consider other research on WUE carried out in CWs in the
Mediterranean, we find that WUE rates obtained in the two
vegetated units are different from those of other macrophytes, also
due to different research methods and different growth
conditions. In Sicily (Italy) in a pilot HSSF system