解决城市生态绿地灌溉用水的途径

水资源不足是制约我国经济、社会、生态可持续发展的主要因素。随着我国经济的持续稳定发展和城市化步伐的加快，我国经济社会发展和生态建设所面临的供水危机将会越来越严重，特别是城市生态绿地建设的供水问题，将会面临严峻的挑战。解决这些问题和迎接挑战迫切需要城市生态绿地建设供水理论和技术的创新。提出以城市污水的再生利用作为生态绿地供水的稳定水源。以城市雨水收集利用作为城市生态绿地供水的补充水源，配合高效节水灌溉技术与城市绿地水管理技术，实现以城市水资源培育城市绿地生态系统。

Approaches Solving Water Consumption for Urban Ecological Greenbelt

Water resources are the main factor that limit the economic and social development and ecological sustainability of China. With the development of the country's economy and the expediting of urbanization, it can be expected that water availability for economic and social development and ecological rehabilitation face crisis, especially water supply for urban ecological greenbelts. How to forecast and face the challenges, it may need theoretical and technological innovation in the processes of solving water consumption for urban ecological greenbelt. This paper suggests that the reclaimed water treated from the urban wastewater be a steady water source for irrigation of the urban ecological greenbelt and rainwater harvesting from urban solid surface be a supplementary water source, and efficient and water saving irrigation technologies and management as a capacity construction, so that make full use of and conserve urban water resources and realize to foster urban ecological greenbelts and urban ecological sustainability.