Evolutionary mechanism of water cycle and efficient utilization of water resources in the Haihe River Basin

摘要

Water cycle in the river basin constitutes the objective basis of water resources evolution. Whatever their manifestations, water resources problems can all attribute to the imbalances caused by the evolution of water cycle or its associated processes in the river basin. Various types of water activities for solution to water problems are in nature a regulation of "natural-social" dualistic water cycle or its associated processes in the river basin. China is one of those countries which are faced with the most violent water cycle evolution and serious water problems with the Haihe River Basin as