Urban Area Spatial Network,From the Perspective of Industrial Chain——With Yinchuan Plain as an Example

This paper,based on industrial economics,analyses urban area spatial industrial network from the perspective of industrial chain,divides industrial types and figures out five industrial chains of urban area in Yinchuan plain.With the five industrial chains as the foundation,it constructs the urban area spatial network by adopting network correlation algorithm.Through calculation of spatial differentiation degree of industrial chains,it determines the characteristics of urban regional spatial network from the perspective of industrial chain.In consideration of industrial structure,it divides more detailedly the types of the five industrial chains in Yinchuan plain.It thinks that the state of regional spatial network formed by industrial chains in urban area,to a certain extent,reflects the characteristics overall urban industrial structure.In the process of industrial development,we should formulate appropriate policies to promote effectively the elongation of value chains in industrial chains,thus to enhance the development of the whole industry.