中文摘要：

以江苏省为例,提出地理折线法的原理及其在区域发展中的应用。采用层次分析法和倒位序法计算得到江苏省13个地级市的城市竞争力值,据此绘制地理折线,在GIS平台下实现江苏省城市竞争力的趋势分析、结点分析、局域分析,提出区域发展的趋势战略、结点战略,通过凸点、凹点、平点的合理连接,获得江苏省5条主干发展线和2条辅助发展线,构成江苏省＂城市—区域＂空间发展模式。

英文摘要：

Taking Jiangsu province for example,the paper puts forward the theory and the application in regional development of geographical polyline method.According to the value of urban competitiveness of 13 cities of Jiangsu Province calculating by AHP and inverse sequential analysis,the author draws the geographical polyline.After carrying out trend analysis,connectivity analysis and local analysis with the help of GIS,the author puts forward the trend strategy and the connectivity strategy of Jiangsu province.Finally,the author gives five main development lines and two supporting development lines through rationally connecting convex points,concave points and flat points,andthen constructs urban-region development pattern of Jiangsu province.