THE MULTI-LEVEL SPATIAL AGGREGATION FRACTAL CHARACTERISTICS OF RURAL SETTLEMENTS AND INFLUENCING FACTORS: A CASE STUDY OF ZHENJIANG IN JIANGSU WU Jiang-guo ^1,2 , ZHANG Xiao-lin ¹ , JI Ya-zhe ¹ 1. College of Geographical Science, Nanjing Normal University, Nanjing 210046, China;
2. Jiangsu Institute of Land Surveying and Planning, Nanjing 210024, China Abstract ：Fractal study is one of the most important branches in modern theoretic geography. This paper commenced with the application of the fractal theory and tried to compare the characteristics of the settlements system at the scale of which contains county, town and village, by using ArcGIS9.3 software and taking national results of the second national land survey data as the main data source. The study area was located in Danyang and Jurong of Zhenjiang. Based on the fractal theory, the paper studied the scale difference of spatial structure of settlements system, then the paper analyzed the influencing factor of spatial aggregation fractal character of the rural settlements at the scale of town and village. According to the results of calculation and analysis, the paper drew the conclusions below:(1) settlements system in Danyang and Jurong are fractal in spatial structure of settlements system, acting as a self-similar structure;(2) The spatial aggregation of rural settlements system in Danyang and Jurong both act as fractal character at different scale;(3) as a result of spatial overlay between terrain and fractal dimension, statistical results shows that terrain is a important factor which influence the spatial aggregation;(4) At the scale of the town hinterland, we found that improvement of transportation network makes the rural settlements more independent on spatial distances. Therefore, in the future work, fractal theory would be a useful tool for the planning of settlements system, finally making effective use of geospatial resources and optimizing the spatial structure of the settlement system in a specific area Key words ： settlements system fractal spatial aggregation scale 席建超, 王新歌, 孔钦钦, 王首琨. 从传统乡村聚落到现代滨海旅游度假区——过去20年大连金石滩旅游度假区土地利用动态演变 [J]. 人文地理, 2016, 31(1): 130-139. 宋晓英, 李仁杰, 傅学庆, 张军海. 基于GIS的蔚县乡村聚落空间格局演化与驱动机制分析 [J]. 人文地理, 2015, 30(3): 79-84. 吴江国, 张小林, 冀亚哲, 李红波. 县域尺度下交通对乡村聚落景观格局的影响研究——以宿州市埇桥区为例 [J]. 人文地理, 2013, 28(1): 110-115. 林涛, 孙婷婷. 长江三角地区高速公路网络与城镇体系空间结构的分形研究 [J]. 人文地理, 2012, 27(6): 43-49. 李红波, 张小林. 国外乡村聚落地理研究进展及近今趋势 [J]. 人文地理, 2012, 27(4): 103-108. 王传胜, 孙贵艳, 朱珊珊. 西部山区乡村聚落空间演进研究的主要进展 [J]. 人文地理, 2011, 26(5): 9-14. 朱彬, 马晓冬. 苏北地区乡村聚落的格局特征与类型划分 [J]. 人文地理, 2011, 26(4): 66-72. 林岚, 杨蕾蕾, 戴学军, 唐得昊. 旅游目的地系统空间结构耦合与优化研究——以福建省为例 [J]. 人文地理, 2011, 26(4): 140-146,98. 曹芳东, 吴江, 徐敏. 基于分形理论的江苏省南通市城镇体系空间结构研究 [J]. 人文地理, 2010, 25(5): 69-74. 曹芳东, 吴江. 基于分形理论的旅游业制度系统构建与管理创新研究——以河南省旅游业管理体制改革大整合制为例 [J]. 人文地理, 2010, 25(2): 149-153. 戴学军, 庄大昌, 丁登山. 旅游景区(点)系统空间结构网格分形维数研究 [J]. 人文地理, 2009, 24(4): 120-123,37. 王武科, 李同升, 刘笑明. 不同尺度下农业创新技术空间扩散的实证研究——以中国果业协会果业技术扩散为例 [J]. 人文地理, 2009, 24(1): 76-80. 汤放华, 魏清泉, 陈立立, 游细斌. 基于分形理论的长株潭城市群等级规模结构研究及对策 [J]. 人文地理, 2008, 23(5): 43-46,26.