use gravity to direct water to sites of use
make lanscape water traps, – terraces, heals and slopes, swales.
swales are long excavations intended to store water in the underlying soils.grow plants that require more water in these specific areas. trees must be planted on the sides of terrases and swales to prevent erosion, to collect silt and build up humus.
building small damb if have water source for cattle and irrigation, build roads on top of dambs, plant trees.
more at Sepp Halzer
if u store water in tanks, add moskito larvae-eating fish or screen and cover the tank. growing algae filtrate water.