Study On The Interactive Relations Between The Hydroenvironment In Cities And The Urban Development Of Hangzhou In The Southern Song Dynasty

water resource is led since the day, field, but be used for person, isthe closest essential factor between the physical geographical elements and the humanity. At the same time, it is also the vigour key element having most. in urban ecological environment system.Urban waters is the main ingredient of urban geographical environment, since urban waters system has diversity functions such as water supply, shipping, ecotourism, tourism,culture, it has the very strong guiding force to the evolution taking urban form and urban development.So it can say the "urban" and "water" concerning an osculation.Hangzhou is one of the famous eight big ancient capital in China, it has "issituated at the foot of a hill and beside a stream, the network of rivers and lakes covers densely" characteristic in the region of rivers and lakes. The economy has stronger developed of Hangzhou in the Southern Song Dynasty. Bisides, there are many river system inside and outside the city. So if we select the account period to Hangzhou as an object of study, it is a typicalness study. Wield historical geography theory and method, from water environment, the angle studies urban development, may reflect Hangzhou oneself "region of rivers and lakes" the characteristic, simultaneously may induce the general rule which the capital city development and the natural environment mutually affects, conducts the comparison research with other capital cities. Sum up out the general rule that our country city develops with water environment coactions relation, serve for modernization drive.The full text divides into six parts.Firstly, it is an introduction. This part mainly elaborates the selected topic overall understanding and the macroscopic assurance, introduces the selected topic basis, the correlation researchnarrates and comments and studies the mentality, the method.Secondly, it is Hangzhou various river systems to the urban form development influence before the Southern Song Dynasty .This part lays the foundation for the study of Hangzhou in the Southern Song Dynasty. We divide into the research time interval four times, namely the QinHan Dynasty - Six Dynasty - SuiTang Dynasty - WuiDai and the Northern Song Dynasty, separately elaborates each time Hangzhou river system influence the city selected location, the city migration, the urban development and the city expands. At last we summarize the rule which the Hangzhou urban form evolves before the Southern Song Dynasty.Thirdly, it is the river system over city to the urban layout of Hangzhou in the Southern Song Dynasty. Firstly, We have a textually reconstruction of the river system of Hangzhou in the Southern Song Dynasty, which is a basic research;Simultaneously, set forth Hangzhou city's entire allocation in the Southern Song Dynasty, discuss an impactof river system over city on macroscopic view. Finally, we have the bridge number change for example, in order to discussing river system influnce to the urban layout.Fourthly, it is the impact of Grand Canal over urban layout of Hangzhou in the Southern Song Dynasty. The article priority discusses Grand Canal (Hangzhou Duan) effect dynamics in the urban development. From workshop alley layout and commerce layout two aspects, discusses the influnces. We think that the salt bridge canal is the drive factor to guide the produces important effect to the urban layout.Fifthly, it is the impact of urban development to the river system in the Southern Song Dynasty. Mainly expound the way, effect making use of and reforming to rivers and the West Lake in Hangzhou developing process. Finally though discusses the change of west. lake water body landscape, we think that Hanzhou city influence profound and scienttific.Sixly, summary the law and enlightenment of the interactive relation between the urban water environment and urban development. We have four cognitions:(a) Urban form of Hangzhou, has been restraint under the Qiantang River, the Grand Canal,the West Lake. this three big river system from whose germ to the Southern Song Dynasty. But, the leading factor Effects in different history period. Concrete saying, the West Lake is the leading facter in QinHan Dynasty; the Qiantang River is the leading facter in the Six Dynasties; the Grand Canal is the leading facter in the Northern Song Dynasty.(b) Urban layout of Hangzhou, especially in the Southern Song Dynasty, influnced by river and lake. In the period, urban layout displays peculiar "Nan gong and North city"pattern;City wall basis landscape geographical feature circumstances is at one's convenience curved.(c) The urban developing process, accompanying with people knowing, reforming and making use of the water environment. In Chinese Ancient Societies, people made use of the river and lake having three kind of ways: dredging a runway, building the brake weir, the newly opened runway and so on.(d) The water environment develops the significance affecting of Hangzhou. Today, it still having drawing lessons to Hangzhou city's far-reaching plan and modernization.