中文摘要：

依据干旱区绿洲城镇特点,建构绿洲特色城镇指标体系,改进中心性强度模型、空间相互作用模型,集成区域城镇空间格局研究方法,提出一套针对绿洲型城镇的空间格局分析方法,并以酒（泉）嘉（峪关）地区为例,分析其城镇等级和空间格局特征。结果表明：1酒嘉地区以肃州区和嘉峪关市为区域中心城镇,玉门、敦煌和金塔为区域次中心城镇,瓜州、阿克塞和肃北为地方中心城镇。2山脉、沙地和砾质戈壁的阻隔改变城镇辐射圈大小和方向。肃州区和嘉峪关市辐射范围最大,敦煌市次之,肃北县最小。3酒嘉地区城镇体系以肃州区和敦煌市为核心,形成东西两组团。城镇沿交通线延伸,以黑河、疏勒河为主轴展布。4酒嘉城镇空间组织无圈层推进特征。

英文摘要：

According to the characteristics of oasis towns,constructing the index system of oasis characteristic,improving the centricity intensity model and spatial interaction model,integrating the method of regional space structure,and then put forward a set of spatial structure analytical method for oasis cities,at the same time,taking Jiuquan and Jiayuguan Region for example. Finally,some conclusions are drawn as follows： 1 Suzhou and Jiayuguan are regional center towns. Yumen,Dunhuang and Jinta are regional sub-central towns. Guazhou,Akesai and Subei are local center towns in the urban system of Jiuquan and Jiayuguan Region; 2 The blocking of mountains,sand and gravel gobi can change the magnitude and direction of radiation,Suzhou and Jiayuguan are the largest,Dunhuang is secod and Subei County is the smallest about irradiation scope; 3 Jiu-Jia urban system is composed of two groups,Suzhou is the core in west cluster and Dunhuang is the core in east cluster. Towns extend along the regional transportation lines,Hei River and Shule River; 4 There is no characteristic of ＂circle-layer＂structure in Jiuquan and Jiayuguan Region.