Abstract: Since great exploitation of northwest areas,foreign trade scales and inter-provincial trade scales are becoming bigger and bigger.The characteristics of spacial flow are: one is the strong relationships of inter-provincial trade and the other is the obvious orientation to east coast.One of the important reasons for domestic trade growth and spacial situations change of northwest areas is the boom of foreign trade,especially the border trade.Therefore,we should improve industrial relationships among provinces and the trade channels to both east and west areas.

Key words: northwest areas, inter-provincial trade, foreign trade, trade flow estimation

摘要： 西部大开发以来,西北各省区对外贸易和省(区)际贸易的绝对量逐步增大,对内和对外开放程度均有所提高。空间上呈现两大特征:一是地区内省(区)际贸易联系较强;二是地区外贸易具有明显的东部沿海指向。对外贸易特别是边境贸易的繁荣是西北各省区国内贸易增长和空间格局变动的重要原因。继续推进西北地区在东、西两个方向上的流通通道建设,同时加强地区内各省区之间的产业关联建设,是促进对外贸易和省(区)际贸易同步发展的关键。

关键词: 西北地区, 省(区)际贸易, 对外贸易, 贸易流量估算