Study On Market-Area's Building Based On GIS--An Example Of Feed Industry Enterprises Of Anhui Province

Along with the development of market economy and knowledge-based economy, the animal feed business enterprises, as the participators of the economic activities, face more and more furious competition. In order to build up themselves competition abilities, increase market occupied quota, the animal feed business enterprises must know well their all competitors' strength and the competitive advantages of itself, knows the competitors' and itself market area, market occupation in the region, offer basic consults to establishing the development programming of the animal feed business enterprises with products sale strategies. Now it's the times of the fast development of information technology, especially GIS and database technology. It becomes an urgent task that how to provide scientific, reasonable consults for the decision-making and management of regional economy development. This paper discusses the key technologies to build the market-area of the feed business enterprises, based on the GIS and database technologies. Around of the topic of market-area of the feed business enterprises, academic disquisition of market-area, building of market-area based on GIS and Database technologies, the Equilibrium Index Model of Feed Industry Chain based on market-area are discussed in the paper.Firstly, this paper introduced the industrial location theory, central place theory and spatial competition theory, expatiating the application of these theories in regional economic competition, and analyzed the advantages and disadvantages of these theories in the business enterprise market area building.In order to realize the feed business enterprises market-area building, according to the basic theory of voronoi polygon, this paper put forward a method of weighted-voronoi based on the raster format data analyzing the characteristics of weighted-voronoi polygon, expatiate the technique of weighted-voronoi polygon realization based on the raster data.Based on the feed business enterprises market-area theories and methods, this paper put forward the Equilibrium Index Model of Feed Industry Chain, and proceeded the academic analysis to the Equilibrium Index of Feed Industry Chain based on the market-area of feed business enterprises.At the end of the paper, Anhui feed businesses enterprises' Equilibrium index of Feed Industry Chain, based on the feed business enterprise market-area and the Equilibrium Index Model of Feed Industry Chain, has been analyzed as an instance.