In both of the vegetated units, cumulative ETc was found to be
substantially higher than total rainfall for both 2012 and 2013,
taking into consideration the period April-November each year. If
we consider giant reed-unit, between April and November of each
year, average 10-day Q0 was found to be 51.38 m3
in 2012 and
52.26 m3
in 2013. As Qiwas constant for all of the 10-day periods,
water loss was on average 8.62 and 7.74 m3
/10-days in the first and second year, respectively. In umbrella sedge-unit, water loss was
on average lower at 7.67 m3/10-days in 2012 and 6.93 m3/10-days
in 2013. The higher levels of water loss found in the two vegetated
units during the first year were mostly due to higher ETc values
found for both species in 2012