Analysis on Water Supply Efficiency of Irrigation District in Baiyang River Basin

Abstract

Baiyang River basin is located across Dabancheng, Urumqi and Tuokexun County, Turpan. The whole basin is characterized by dry weather, windy weather, heavy rainfall, and rare evaporation. It is a basin irrigation area with superimposed drought and extreme drought in Xinjiang. Improving the water supply and delivery efficiency of the irrigation area has special significance for the efficient use of water resources. This paper takes the water supply and delivery efficiency of all levels of channels in the irrigation area as the research content, and adopts the measurement and analysis of the channel discharge section to show that: 1) the water utilization coefficient of the current channel system in the irrigation area of the basin is 0.5486 (the upstream Dabancheng is 0.5680; the downstream Tokson is 0.5012); the analysis shows that the water utilization coefficient of the canal system in 2030 is 0.6567 (0.6595 in the upstream Dabancheng; 0.6500 in the downstream Tokson). 2) The current irrigation water utilization coefficient of the irrigation area is 0.4975 (upstream Dabancheng 0.5112; downstream Tokson 0.4641); the irrigation water utilization coefficient in 2030 is analyzed to be 0.6239 (0.6265 in the upstream Dabancheng; 0.6175 in the downstream Tokson). 3) The improvement of irrigation water utilization coefficient in the irrigation area has made the current irrigation water intake of 382.6 million m³, down to 318.72 million m³ in 2030, with good water saving effect.