It is estimated that more than 20 billion M 3 of rainwater (equivalent to 1 / 3 of the national domestic water consumption) flows away through the surface of agricultural facilities every year in China. If these high-quality rainwater resources can be effectively used, it will greatly alleviate the severe situation of water shortage.
Our new rainwater comprehensive utilization system can effectively collect and make full use of rainwater resources, effectively reduce the cost of sewage treatment, improve the production environment, effectively reduce the exploitation of groundwater, alleviate land subsidence, reduce pollution discharge, alleviate agricultural non-point source pollution, and reduce disaster losses. It has considerable economic, social and environmental ecological benefits. The popularization and application of this new rainwater comprehensive utilization system will contribute to the better development of facility agriculture and the solution of water resource shortage, water pollution, land subsidence and other problems in China.