北京城市绿化水资源合理利用研究——基于理论供水量与实际供水量的视角

Study on Water Resources Rational Use for Urban Green Space in Beijing——Based on Perspective of Theoretical Water Supply and Actual Water Supply

基于城市绿化用水资源合理利用的视角,借鉴相关学者对具体绿化品种生态需水量的研究,通过尺度扩展法计算北京城市绿化年生态需水量,进而结合北京市有效降雨利用量求得理论供水量。利用实地调研所获取的北京市城市绿化实际供水量与理论供水量进行估算研究,分析得出北京市城市绿化用水存在1.79亿m3的节水空间。因此,提高绿化水资源的利用效率,保障北京城市供水安全与水资源可持续利用,是当前城市绿化建设和研究的重要课题。

This paper based on the rational use of water resources for urban green space,drawing on relevant academic study of ecological water demand of specific greening varieties,through scale expansion method to calculated Beijing urban greening of ecological water demand, and then combined with theoretical effective rainfall use obtained water supply of Beijing. Acquired by using the field investigation of Beijing urban greening estimation of actual water supply and water supply theory research,analysis of Beijing urban greening water was 179 million cubic meter water saving space. Therefore,how to improve the efficiency of greening water,gurantee the urban water supply security and sustainable utilization of water resources in Beijing,it was an important subject of urban greening development and research.