The Analysis Of The Synthetic Benefit Of The Urban Greenbelt Eco-System--Take Dalian As An Example

Urban ecology is a colossal system, and urban Greenbelt system is playing an important role as a main part of the system. The article begins with correlative theory of urban greenbelt system, and expounds the concept, the function; summarizes the actuality of urban greenbelt in Dalian, and analyze it on the basis of abundance data from the different point of view; with method of the zoology analysis, appraises and measures the eco-benefit of urban greenbelt system, appraises the value of the improve of the environment quality and converses the value of society-economy; with some formula and mathematic model, appraises economy-benefit and society-benefit of urban greenbelt system; aiming at the existent problem of urban greenbelt system in Dalian, brings forward some principles and approaches of urban greenbelt system.