Li Xiangyang¹, Chu Yongwei¹, Ren Lixin²

(1.The Heihe Basin Administrative Bureau of the Yellow River Conservancy Commission,Lanzhou 730000, china 2.  Bureau of the Upper-Reach Hydrology and Water Resources of the Yellow River Conservancy Commission, Lanzhou 730030, China£©

Abstract: Water resources are scarce in Heihe basin and the contradictory if water consumption is prominent. The inter-province water transferring is carried out on the Heihe basin in order to alleviate the situation that the ecological environment worsens day by day in downriver of Heihe. Because there is no water volume adjustment project in Heihe trunk. The span of the water adjusting is wide and the loss of the water distribution along the river course is very big, so it couldn¡¯t provide essential water volume during the time of adjusting water to the downriver, and the efficiency and benefit of water resources using is very low. In the season of summer irrigation, because of the specific way of irrigation and pilots in middle reaches, the situation that ¡°comes more then uses more¡± is difficult to change. The water resources waste still exists. While the water is less in spring, it is always dry during the critical moment. In order to enable the limited water resources of Heihe to be under the scientific management, the reasonable disposition, the highly effective use, and to realize the sustainable development of the economic society in Heihe basin and to improve the ecological environment effectively, it is urgent to construct key projects to store and regulate in Heihe trunk.

Key words: the project to store and regulate, optimization disposition of water resources, Heihe