全球水资源短缺已成为不容忽视的问题,特别是随着城市化的迅速发展,城市缺水与环境生态问题同步恶化,虽然世界各地逐渐开始把注意力放在雨水收集和利用上,但也只是在一些 The global shortage of water resources has become an issue that can not be ignored. Especially with the rapid development of urbanization, urban water scarcity has worsened simultaneously with environmental and ecological problems. Although attention has gradually been paid to rainwater collection and utilization all over the world, In some