Distributed Water Resource Allocation Method and System for Overall Planning and Coordination

A distributed water resource allocation system for overall planning and coordination, wherein the allocation system comprises:

• a unit dividing module, which is configured to acquire a sub-basin in a setting region based on data of a digital elevation model, and to divide the sub-basin into a plurality of allocation units by applying a multi-attribute overlaying method and according to a land use type, a soil type, a slope type, water resource zoning, an administrative region and an irrigation area;
• a spatial topological module, which is configured to determine a spatial topological relationship between water users and water sources in the various allocation units according to a water supply priority of the water source and a water use priority of the water user, wherein the spatial topological relationship is a correspondence between water use types of the water users and water supply types of the water sources, the water use types comprise urban resident, industry, construction industry, service industry, urban ecological environment, rural resident, livestock breeding, rural ecological environment and agricultural irrigation, and the water supply types comprise river, reservoir, pond, shallow aquifer, deep aquifer, transferred water, rain collecting pond, water reclamation plants and desalinator;
• a calculation module, which is configured to acquire water demand data in the administrative region, and to calculate a water supply quantity of each water source as well as a daily amount of water allocation, water consumption, water discharge and pollutant discharge of each water user in the administrative region according to the spatial topological relationship between the water users and water sources of the allocation unit corresponding to the administrative region, the water supply priority of the water source and the water use priority of the water user;
• a construction module, which is configured to construct objective functions and constraint conditions based on the daily water supply of each water source as well as the daily amount of water allocation, water consumption, water discharge and pollutant discharge of each water user, wherein the objective functions are the maximum regional overall planning and coordination degree and the minimum regional pollutant discharge, and the constraint conditions comprise a water resource quantity constraint, a total water use quantity constraint, a water supply capacity constraint, a water balance constraint, a dual water supply constraint and a non-negative constraint;
• and
• a resolving module, which is configured to resolve the objective functions based on the constraint conditions and by adopting a genetic algorithm, to obtain water resource allocation data.