我国煤炭生产重心与消费重心演变轨迹研究

利用重心模型,分别测算了1997—2009年我国煤炭生产重心与消费重心的动态变化轨迹,从方向和距离两方面对其进行了对比分析,探讨了煤炭生产重心与消费重心相互偏离的影响。研究表明,我国煤炭生产重心从剧烈不规则运动到剧烈向西南移动,最后平稳向西北转移,煤炭消费重心平缓地呈现出＂西进南移＂的趋势。两者在经度上收敛,纬度上背离,直线距离从1997年的182km增加到2009年的283km;两者间的背离改变了区域煤炭运输格局,加剧了煤炭运输的难度。

Research on Evolvement Track of Chinese Coal Production Gravity Center and Consumption Gravity Center

By using the gravity model, this paper respectively calculated the dynamic changes of the track of Chinese coal production gravity cen- ter and consumption gravity center in 1997-2009 and its direction and distance from two aspects of the comparative analysis. Finally, this paper discussed the coal production gravity center and consumption gravity center from each other effects. Research showed that： Chinese coal production gravity center was from strenuous irregular movement to severe to southwest mobile,and finally to the northwest smooth transfer.The coal consumption gravity center gently showing ＂south west＂ trend, both in longitude convergence, latitude deviation on, straight distance from 1997 in 182km to 2009 increase 283km, the departure from the change between regional coal transportation pattern ,worsen the coal transportation diiticuhy.