中美煤炭生产和消费重心演变轨迹分析

发布时间：2018-06-26 09:29

本文选题：美国 + 中国　；参考：《中国矿业》2017年12期

【摘要】：基于2001~2015年煤炭生产量和消费量的历史数据,构建重心模型研究了中美煤炭生产和消费重心的演变轨迹,并对两国煤炭生产和消费重心的移动距离、移动速度和经纬坐标变化等演变特征进行了分析。研究发现:在研究期内中美两国的煤炭生产和消费重心整体的移动趋势具有相似性,均呈现西北方向的演变,且空间移动明显,中美煤炭生产重心分别累计移动了421.84km和264.15km,消费重心分别累计移动了208.71km和302.61km;在移动速度方面,中国煤炭生产重心平均移动速度为30.13km/a,远快于美国的18.88km/a,煤炭消费重心的移动情况相反,中国仅14.91km/a,美国高达21.61km/a。此外,2014年以来中国煤炭的生产重心移动速度放缓,并且"西进北移"趋势消失。
[Abstract]:Based on the historical data of coal production and consumption from 2001 to 2015, a barycenter model was constructed to study the evolution of coal production and consumption center in China and the United States, and the distance between the center of gravity of coal production and consumption in China and the United States. The evolution characteristics of moving velocity and longitude and latitude coordinates are analyzed. It is found that during the period of study, the coal production and consumption center of China and the United States as a whole showed a similar movement trend, both showing the evolution of the northwest direction, and the spatial movement was obvious. The center of gravity of coal production in China and the United States has moved 421.84km and 264.15km respectively, and the center of gravity of consumption has moved 208.71km and 302.61kmrespectively. In terms of moving speed, the average moving speed of the center of gravity of China's coal production is 30.13km / a, much faster than that of the US of 18.88kmm3 / a. The shift of the center of gravity of coal consumption is on the contrary. China is only 14.91 km / a, the United States is 21.61 km / a. In addition, China's coal production center of gravity has slowed since 2014, and "westward northward" trend disappeared.
【作者单位】：中国矿业大学(北京)管理学院;中国矿业大学(北京)煤炭资源与安全开采国家重点实验室;中国包装和食品机械有限公司;
【基金】：国家自然科学基金项目资助(编号:L1624054;71403270) 中国工程院咨询项目资助(编号:2015-XZ-35-03-01;2016-ZD-14-05)
【分类号】：F426.21;F471.2

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