Research About Water System Planning Methods Of Typical River-net Cities

Urban water system and water landscapes are the precondition and foundation of scientifically disposing the city resources, promoting the city function and its competition capability, improving the habitat environment and the investment climate, and achieving the sustainable development for a city. Healthy and vigorous water spaces and landscapes are the emphases for assuring the coordinating development of "human, water, city and nature" and the necessary condition for achieving urban modernization.Nowadays, the issue of conservation and utilization for historic urban water system has drawn more attention in China. This dissertation is focused on some key problems of historic urban water system in traditional urban areas with the mind of urban conservation and rehabilitation. This paper focuses on cites with typical water network. Firstly, it is discussed that urban stream is not only the basic element of the city, but also the element of urban landscape and ecology. Through the process of urban water system and the new value in modern cites, it is concluded that the traditional water system planning can give us many advices in aspects of transportation, culture and infrastructure and so on.In addition, view form other science knowledge, many theories are cited here for further studies including the landscape ecology, urban open space planning and Shanshui City theory of China, and at the same time the Leidsche Rijn and Jiaxing are two cases in point. Most importantly, the paper discusses the main content of water system planning of typical river-net cities and gives some new concepts and measures of water system planning. Lastly, the city of Nantong is taken as an example to show how it is going in the planning of water system renovation.