Furthermore, the giant reed's greater above-ground biomass
dry matter production at harvesting undoubtedly influenced water
loss in the unit in as much as a considerable amount of water was
used by the species to help growth above- and below-ground. A
further amount was used in order to compensate for the difference
between the leaf surface vapour pressure and the ambient air
vapour pressure, as the leaf surface of the giant reed is larger than
umbrella sedge. If we compare ETaru values from our research with
those found by