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西部地区是中国国家现代化发展的能源供应基地,其供应潜力主要通过煤炭外运来实现。在资源赋存和经济发展两者空间差异的共同作用下,西部地区成为国家煤炭外输的重要基地。数据分析表明,在西部地区煤炭的外输过程中,西北区的作用至关重要。其煤炭供应不仅量大、且范围广;同时,供应半径的定量分析发现,无论是在总体还是在省区级层次上,西部地区煤炭供应半径均呈现出先增后减的基本趋势,其拐点出现在20世纪90年代;进一步分析认为,上述煤炭供应半径的变化是西部地区自身城市化发展所导致的能源需求增大的一种必然结果。有鉴于此,西部地区煤炭供应的合理模式和其作为国家能源供应基地的可持续发展方向应引起更加深刻和广泛的反思。
The western region is the energy supply base for China’s national modernization and its supply potential is mainly realized through the transportation of coal. Under the combined effect of spatial distribution of resources and economic development, the western region has become an important base for the country’s coal export. Data analysis shows that the role of Northwest China is of crucial importance in the coal transportation to the west. At the same time, the quantitative analysis of the supply radius found that the radius of the coal supply in the western region showed the basic trend of first increasing and then decreasing, both at the overall level and at the provincial level, and its turning point appeared In the 1990s, further analysis suggested that the change of coal supply radius mentioned above is a necessary result of the increasing energy demand caused by the urbanization in the western region. In view of this, the rational model of coal supply in the western region and its sustainable development as a national energy supply base should arouse more profound and extensive reflection.