Research on Ecological Space Identification,Evaluation,Network Construction and Optimization Model of Metropolitan Areas
In the construction of ecological civilization,as an important site carrying information and capacity in urban ecological space sphere,ecological space plays a fundamental role in promoting the formation of reasonable spatial structure of megacity,and is also the key to high-quality urban development and high-quality habitat planning and construction.Taking the six metropolitan areas as examples,this research couples MSPA and In VEST models to identify and evaluate ecological space,selects habitat source areas and constructs the resistance surface based on the results of the habitat quality evaluation,and uses the Minimum Cumulative Resistance(MCR)model to construct ecological space network of metropolitan areas.On this basis,combined with the analysis of the evolutionary trend of ecological spatial structure in megacities,it proposes optimized structural patterns of ecological space,and constructs two models of ecological space optimization in metropolitan areas,namely,radial pattern of networking with"wedge-ring"and grid pattern of networking with"core-belt",in order to provide theoretical support and practical guidance for optimization of ecological space pattern and sustainable development of metropolitan areas in China,as well as to provide certain references and bases for the optimization of territorial space pattern of megacities.
landscape architecturemetropolitan areaecological space networkoptimization modelhabitat quality evaluationMSPA-InVEST