Research On The Construction And Optimaldesign Of Urban Green Infrastructure Network

With the acceleration of the pace and process of urbanization construction,coupled with environmental pollution,a large number of green spaces in the city are occupied,landscape corridors are broken,and the distribution of green space is increasingly fragmented,leading to some frequent urban ecological problems.There are weak links in the existing green space network,which can not give full play to ecological functions and people’s demand for green space.In order to increase the close relationship between human and nature,improve the urban landscape,promote the urban ecological function,and make the green space more integrated and networked.In this paper,Handan City as an example of green infrastructure network construction in-depth analysis of the status quo of scientific evaluation,found deficiencies,and put forward improvement strategies.First of all,this paper defines the research scope.Through the analysis of the case,we know how to use the green infrastructure construction in practice.In the green infrastructure construction of Handan city more comprehensively,two sets of evaluation systems are established respectively for the macro overall and micro local,and the index weight is obtained by AHP.Then use Morphological spatial pattern analysis method combined with landscape index method and cost path method to analyze the network construction of green infrastructure in Handan city.The whole and three districts of Handan city are evaluated by using the overall evaluation system,and Handan city is divided into several local plots by using the local evaluation system.Through the analysis of network construction,the basic construction mode of green infrastructure network in Handan city is obtained.Through the analysis,the deficiencies of green infrastructure network construction in network center and connecting corridor distribution in Handan city are found.Through the overall evaluation,we know the overall construction level of green infrastructure in Handan city.Through the partial evaluation,we know the problems in different aspects of green infrastructure.Finally,the improvement strategy is put forward according to the analysis results.