RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN >> 2010, Vol. 19 >> Issue (03): 225-230.

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EVOLUTION OF ECONOMIC AND COD,SO2,TSP EMISSION GRAVITY CENTERS IN JIANGSU PROVINCE

ZHAO Xiaofeng1,2| HUANG Xianjin1| ZHANG Xingyu1| LU Rucheng1| LI Heng1   

  1. (1.Lab of Environmental Geography in Land Resources and Tourism Sciences Department,Nanjing University, Nanjing 210093, China|2.College of Resources and Environment,Northwest A&F University, Yangling 712100, China)
  • Online:2010-03-20

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Abstract:

With the economic and environmental data collected from 13 cities of Jiangsu Province form 1996 to 2006,gravity centre coordinates of GDP, industrial output,COD,SO2 and TSP were calculated  by the gravity centre model,and dynamic evolution tendencies and rules of these gravity centers were found.The results show that economic gravity centers present dynamic tendency to higher longitude and lower latitude.The shift distances of GDP and industry output gravity centers were 14.81 km and 12.84 km respectively,and the distances were longer in latitude than in longitude.Environmental pollution emission gravity centers present the similar change tendency.However,COD and TSP emission gravity centers changed more than that of SO2.The shift distances of COD,SO2 and TSP emission gravity centers were 79.26 km,15.73 km and 42.24 km respectively,and different evolutional characteristics were presented in different period.Compared with economic gravity centers,COD,SO2 and TSP emission gravity centers lied in northwest,and COD emission gravity center obviously inclined to industrial output.The change of pollution emission gravity centers could be summarized to the results of economic development, industry structure,technologies,and policies.

Key words: economic gravity centre/pollution emission gravity centre/ transition/Jiangsu Province

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