First : Find the sustainable sources of water with the expertise of Dr Alain Gachet, analyzing the satelite radar images taken by the space shuttle.
Second : Concieve sustainable irrigation to avoid any salinisation from over-watering. Design of the irrigation network according to keylines, level curves, satellite imagery and P.A. Yeoman’s principles.
This way of design the irrigation network is the cheapest and the most easy way to stop irrigation and continuously enrich the topsoil.