前言上海市城市建设与发展的定位是:现代化国际大都市。因此,必须有一个高标准的环境质量,而抗风险能力较强的安全的自然环境,是环境质量的基础和重要的保障条件。但随着城市化面积的扩展,城市排水出路的矛盾愈显突出和尖锐。由于历史的原因,城市化 Preface The orientation of urban construction and development in Shanghai is: a modern international metropolis. Therefore, there must be a high standard of environmental quality, while a safe and natural environment with strong anti-risk ability is the basis and important guarantee for environmental quality. However, with the expansion of urbanization, the contradiction between urban drainage outlets has become more prominent and sharp. Due to historical reasons, urbanization