What is the equivalent depth of water contained in a soil profile 1.2 m deep if the mass wetness of the upper 0.3 m is 16 % and that of the lower 0.9 m is 35%? Assume a dry bulk density of 1400 kg/m3 in the upper layer and 1650 in the lower layer. How much water does the soil contain in cubic meters per hectare of land?