Water resources allocation model based on domestic, productive, and ecologic-environmental water consumption

For overall consideration of domestic, productive, and ecologic-environmental water demand and systematic reflection of the characteristics of various water sources and water supply to projects, a water resources allocation model is developed in this paper. The basic concept and definition of the water resources system and the water resources allocation model are presented from the view of practical water requirement. The methods of how to draw the network map for the water resources system and how to use it to generalize and express the complicated relationships between the volume of water demand, water sources, projects, and water movement in the system are studied. Then, the thought and techniques for the development of the model are introduced from the angles of time and spatial structures, and the basic tasks and main constraint equations of the model are presented. The application of the model to comprehensive planning for sustainable utilization of water resources in Anyang City of Henan Province shows that the calculated result is correct, the allocation schemes recommended are reasonable, and the calculating speed is fast. Therefore, the model can be used for large complicated water resources systems.