Comparative Analysis of Agricultural Water Saving and Water Transfer Contribution in Water Shortage Area

In this paper,the final contributions of agricultural water saving and water transfer were calculated and compared for five typical irrigation regions in the water-receiving area of the South-to-North Water Transfers Project.The final water quantities for the water saving and water transfer were analyzed,and the final economic contributions and water saving costs between water transfer and water saving were compared.The results showed that the final contribution of water transfer is about 1.982 to 3.202 times of that of engineering water saving when the water quantities for the water saving and water transfer were the same,which further illustrated the necessity and feasibility of the recharge of water sources for water shortage area.