0前言气候变化、人类高强度活动不仅对地球生态环境造成直接影响,也影响到水循环时间、空间分布特征。文章首先介绍城市化和低影响发展下城市水文学发展历程,然后分析城市化水文效应,并对其评估方法进行简要介绍,最后指出城市化水文效应研究过程中所面临的主要难题,进而为相关领域研究提供一定方向。1城市化和低影响发展下城市水文发展历程进入21世纪以来,气候变化对生态环境的影响程度日益加重,给城市用水安全带来了较为严重的威胁,特别是沿海城市及 0 Preface Climate change and high-intensity human activities not only have a direct impact on the Earth’s ecological environment, but also affect the time and spatial distribution of water cycle. The article first introduces the urban hydrology development under urbanization and low impact development, then analyzes the hydrological effect of urbanization, and briefly introduces its assessment method. Finally, it points out the main problems in the process of urbanization hydrological effect, and then correlates Domain research provides a certain direction. 1 Urban Hydrological Development under Urbanization and Low Impact Development Since the 21st century, the impact of climate change on the ecological environment has been increasingly aggravated, posing a serious threat to urban water safety, especially in coastal cities and