However, this priority, it should be changed in each region, by comparison to all the abundance of water and the soil surface.As well as the quality of the underground water source of water and the demand for water.
However, this priority should be changed in the region as compared to the abundance of surface water and underground water sources. As well as water quality and water demand basis.
However, this should be changed priorities in each area by comparing the abundant water source of ground and surface water resource underground. As well as the quality of the water demand and water use as a criterion.