EXPERIMENTAL RESEARCH ON SPATIAL TRANSPORTATIO NLINKAGE IN CHINA
我国空间运输联系的实验研究：以货流为例

It is very significant to reveal spatial interaction laws in the research of spatial transportation linkage. In this paper, the following subjects are discussed deeply: (1) Essential factors of spatial transportation linkage. They could be summed up into five kinds: a. Communication passageway; b. Spatial differentiation, Including natural and economic differentiations; c. Spatial interdependence and competition; d. Location; e. Regional policies. (2). Goods export and import of provincial region- The results of analysis would reveal the external dependence of provincial region that was led by goods exchange. In export and import,, there are obvious spatial setup and great disparity in scale. The areal coefficient of centralization are very different. (3). Interregional transportation linkage. A complex interaction network was made up by interprovincial transportation linkages. In the network, most of the linkages are weak, and its main part is determined by 33 linkages that their goods exchange accounts for 46 percent of the total. The macroregional transportation linkage indicates that the goods exchange among six coordinate economic regions are very different. Its development tend is significant for the allocation of economy and communication. In addition, the conception of "Primary linkage" is defined and used to test and verify the existing foundation of economic regions.