A Water Resources Collaborative Allocation Model for the Composite Water Resources-Socioeconomic-Eco-Environment System

Abstract

In consideration of the strong mutual exclusion of urban development and ecological environment protection, the coupling relationship of the composite water resources-socioeconomic-eco-environment system is overall recognized on the base, and the key control parameters and order parameters in the collaborative allocation model for the composite system are quantitative characterized. Then, aiming at the coordinated and orderly development of the composite system, the water resources collaborative allocation model is proposed by means of multiple loop iteration technique. At last, the proposed model is successfully applied in the Tarim River in northwest China. The results reveals that when the water frequency is less than or equal to 50%, through an accumulated new water saving irrigation area of 12.76 million mu, an accumulated reduced agricultural irrigation area of 6.22 million mu, as well as an accumulated reduced water usage quantity at 7.5 billion m3 in national economy, which can realize the orderly benign evolution and efficient and balanced development of the water resources, economic society and ecosystem composite system,and verify the feasibility of the method.