Analysis on the Potential of the Available Agriculture Water Resources in Manas River Valley,Xinjiang

Based on the analysis of hydrological data,planting structure and water-saving technology development in Manas River Valley in Xinjiang,the potential of the available agricultu-ral water resources in the future was quantitatively estimated by considering surface water-saving and groundwater exploitation potential.It was considered that the main approach about increasing agricultural water resource was to reduce the waste of surface water in this region according to actual situation of water resources use.The results also showed that the ultimate utilization volume of agricultural water resources in the future can reach 10.75×108m3.The potential of the available agricultural water resources would reach 2.13×108m3 in 2010,of which groundwater and surface water exploitation potential was equivalent to 0.40×108m3 and 1.73×108m3 respectively,which accounted for 18.8% and 81.2% of the total agricultural water resources potential.In 2010～2030,the potential of the available agricultural water resources would equal to 5.33×108m3,which was composed of 1.12×108m3 of groundwater exploitation volume and 4.21×108m3 of surface water-saving,which accounted for 21.0% and 79.0% of the total water-saving potential respectively.This study conclusion can be applied to agriculture water resources exploitation and water-saving planning,which is also very important to realize the rational allocation of water resources and the sustainable development of economy.