Diagnosis of water supply and demand in the North China Plain
华北平原水资源供需状况诊断

The study raises a new set of evaluation principles for the actual conditions of water supply and water demand. The basic principles include integrated evaluation of supply and demand and utilization of water, coordinated development, unification of environment and benefit, quantification and comparison, hierarchical analysis and so on. They are described by using an integrated model which is used to diagnose the situation of water supply and water demand, properties and classification of water shortage in the North China Plain.