Water saving objective and development potential of Yellow River irrigated districts in Ningxia

The overall idea of development of water-saving irrigation in Yellow River irrigation area should be in conformity to local condition,and the realization of the overall objective should be implemented in stages.The supply and demand of water resources was analyzed using grey theory,and the potential watersaving capacity is 1.030 and 1.381 billion m~3in 2010 and 2020 respectively.The potential for water-saving can be exploited rationally by the measures,such as engineering measure,adjustment of crop planting structure,exploitation of shallow groundwater,improvement of the surface irrigation manner,development of advanced irrigation technology and improvement of water-saving management in the irrigation area.