关键词: 天然气, 资源流动, 首位律, 位序-规模法则, 马尔科夫转移矩阵, 中国

Abstract:

The paper analyses the scale distribution, scale structure and internal dynamic change characteristics of the natural gas resource flow system in China by using methods of "law of the primate city", "rank-size rule "and "Markoff shift matrix". The following conclusions are drawn: (1) China's natural gas flow system is developing step by step, no matter in terms of quantity or scale, it has increased significantly. (2) The rank-size distribution of natural gas flow system in China accords with the ZIF rule and has fractal properties. In terms of output system size distribution, it presents the trend of converting from the primacy distribution mode to the decentralized equilibrium mode, and then to the primacy distribution mode. In terms of input system size distribution, the overall performance is centralized distribution mode, and the natural gas flow scale is relatively developed in the middle rank provinces. In the output scale system, the development of no flow area and low flow scale area is not active. And it is difficult to achieve leaping development. The input scale system shows a trend towards a moderate scale. Overall, China's natural gas scale expansion is relatively stable. Therefore, it is proposed to strengthen the exploration of natural gas resources, broaden the production and import source of natural gas, and further strengthen the construction of the main natural gas pipeline network in China, and gradually build and perfect the coastal LNG receiving station and the pipeline network.

Key words: natural gas, resources flow, law of the primate city, rank-size rule, Marekove shift matrix, China