中文摘要：

国外对环大城市环状空间功能地带的研究已落实到“生态项链”、“新城市圈”与“产业走廊”的规划。国内主要研究城市圈层结构方面，都还没有涉及到以提高城市（社会）生活质量的商娱场所“引力（区）圈”的研究。文章借鉴国外“兴趣引力区”与“存在主义”场所等概念，首次揭示中国大城市（西安）的“项链状”现代商娱场所引力圈的结构，并探讨其商娱场所（微）区位因素与布局区位模式。

英文摘要：

The European and American developed countries have probed into the functional zones of orbicular spaces in big modem cities, the planning of ＂ecological necklace＂, ＂the new urban ring＂ and ＂industry corridor＂ are the main content of their research work. In China, we are studying the circle layer of urban structure. Both of their studies do not come down to the gravitational circles of comereial and recreational places, which improves the quality of social life efficiently. Useing the concepts of ＂interest gracitation＂and ＂existentialism＂ places for reference, this thesis opens out the structure of ＂necklace＂ gravitational circle of modem commercial and recreational places of big cities（Xi ＇an, for example） for the first time, and then discusses the （micro - ） location factors and the location mode of distribution of commercial and recreational places.