Due to the dispositional distribution of coal production and consumption in China, coal flow has become a kind of wide area, large-scale spatial phenomenon.

• 我国煤炭资源生产与消费在空间上的错位性分布,使其流动成为一种广域性、大规模的空间现象,煤炭流输通道成为煤炭供需平衡的关键所在。