Research On Shenzhen Green Space Ecosystem Network Building Based On GIA

Urban green space ecological network is an effective solution of habitatfragmentation problem brought by the rapid urbanization and to ensure the urbanecological security.The main point of choosing urban green space ecological network as researchobject is to explore a multi-level and multi-objective ecological framework which canbe controled and guide the urban development, in the limited supply of land resourcesand two-way requirements of protection and utilization of resources and the new trendof resources protection from the traditional passive adaptation to the proactive defense.As a product of this new trend, GIA is the core technology of green infrastructureplanning which regards improving the efficiency of protection as the guiding ideology.GIA integrates protect biology, landscape ecology into the urban planning area, and hasa significant comprehensive advantage in scale, flexible control, coordination andconnected cohesion. It has become a basic technology platform to building acomprehensive green ecological network.Applying GIA as technical method system for network construction in Shenzhencan not only solve the existing problems of green space ecosystem, but also can adjustand optimization technique method itself. Realize the effective integration ofmulti-source data and space analysis, generate a network data information that can bequatified and qulified through the geographic information system platform, includingthree levels: a networked completed green ecological network through the ecologicalelements identification; a multi-level flexible green space ecological network throughassessment of ecological importance and a multi-objective integrated green spaceecological network after joining the cultural recreation factors.Compare the builded network with the present situation and the green space systemplanning, put forward the optimization strategy of shenzhen city green space ecosystem,including optimizing the overall landscape connection and how to mine the potentialvalue of the internal resources in the controled line reasonably to improve the efficiencyof protection.This study has theoretical significance of interdisciplinary fusion and optimizingmethods, meanwhile, it can also be a reasonable ecological network constructing modelfor other cities.