Integrated Regional Water Resources Planning under Healthy Water Cycle Framework and Its Application

An approach of integrated water resources planning is put forward based on the prediction of water supply and demand,the protection of water resources and the water saving under the idea of healthy water cycle.The traditional way of water resources planning which simply enlarges the water supply capability to meet the needs of water quantity is changed.Under the condition of limited total quantity of water resources,the water demand is controlled and managed by taking a series of technical and management countermeasures,such as increasing use efficiency of water resources,adjusting the industrial and agricultural structures to reduce water consumption ration,considering both of the productive water demand and eco-environmental water demand.The water supply ability is enhanced by transformation from primary water resources to reclaimed water resources.The comprehensive protection of both surface water and ground water should be undertaken,and the conservation of drinking water sources and ordinary water body,water supply and drainage system,wastewater treatment and reclaimed water should be completely managed.As a case study,this approach was applied in regional water resources planning in the Shunyi District,a new planned satellite city of Beijing.