A Study on the Industry Structure of Four Coal Cities in Heilongjiang Province Based on Grey Correlation Analysis Method

Resource cities need carry out the industrial structure adjustment and realize sustainable development because the resource is descending day by day.Jixi,Hegang,Qitaihe,Shuangyashan are the famous coal resources cities in Heilongjiang Province,which take initial to carry out the industrial structure adjustment.They obtained successes as well as lessons in this process.The gray correlation analysis method regards Four Coals Cities as a comprehensive big system,focuses on the connections among three industries of these four cities on the basis of the industrial structure analysis model.The paper finds out the problems and comes up with the industrial adjustment optimized values.Through these methods it gives the solutions to optimizing industrial structure for the sustainable development of these Four Coal Cities.