Systems Analysis And Optimal Allocation Of Water Resources In The Middle Reaches Of Heihe River

Heihe River is the biggest river in the Heihe Basin, which is a large inner river in the northwest of China. The runoff of middle reaches of the Heihe River is reduced and the ecological environment of Egina oasis in low reaches has been destroyed, because of the influence of water-utilization project and exploitation of water resources and so on. So study on the optimal allocation of water resources has important academic value and practical meaning to Heihe River area.The current international and domestic research about the allocation of water resources was summarized in the thesis, the primarily problem of water resources exploitation were analyzed, combined with the present situation of water resource using in the middle reaches of Heihe River. The characteristic of water resources system was analyzed, using the water balance principle, the hydrological cycle theory and the groundwater hydrodynamic methods. Using theory of operational research, multiple objectives programming model of water resource is made in middle reaches of Heihe River. Rationality, reliability and simulation character of model is analyzed through debugging, testing and fitting model data and parameter. Model is optimized by data and parameter of programming in the near future, which outcome is analyzed and then eleven schemes of water resource programming are established.Through investigating the water resources, contrasting and analyzing these schemes of water resource programming, put forward the optimize exploitation of water resources in the middle reaches of Heihe River. On the basis of analyzed present situation of water resources exploitation mode in Heihe River, The thesis suggested a mode of water resources continuable exploitation.