THE APPLICATION OF GIS IN URBAN PLANNING:ENVIRONMENTAL ZONING STUDY IN THE OLD CITY OF WENZHOU,CHINA

I.Intr0ducti0nl.Backgr0undWenzhouisoneofthemostraPidlydevelopingcitiesinsouthernpart0fChina.Theoldcity0fWenzhou,whichhasahistoryofl600years,islocatedinthenorthernpart0fthecityalongOujiangRjver.Itc0versanareaofabout892hectares,including1lneighbourhoodswitl1atotalPOpulation0f340,959(l988).ItisoneofthehighlypoPlatedareasinChinawithaPOpulationdensity0f38,220peOPlePersquarekilometre.TheoldcityofWenzhouistl1ecommercialcentreofthenewWenzhoucity.Allldndsofactivitiesarelocatedonthelimitedlandwi…

THE APPLICATION OF GIS IN URBAN PLANNING:ENVIRONMENTAL ZONING STUDY IN THEOLD CITY OF WENZHOU, CHINA

Due to rapid growth of population, urbanization and industrialization, in many cites of the developing world, there is severe contradiction between urban land supply and land demand which resulted in many urban land use conflicting situations and urban environment degrading. This paper is mainly focused on this problem, demonstrating the feasibility and efficiency of environmental study by integrating GIS and environmetal zoning method. Two neighbourhoods of the old city of Wenzhou were chosen as the study area. With the aid of GIS software PC Arc/info as dBate IV, an urhan environmental impact assessment study was carried out based on the data available such as land use map and detailed attribute data of each land planning unit. The main factors taken into consideration include: the type of activity causing environmental stress, the type and strength of environmental impact and the type of receptive area that could be affected.