苏南地区村镇与水系空间形态分形演变特征研究——以苏州为例

摘要

Southern Jiangsu Province has a dense water network.Under the guidance of the new concept of harmonious development between humans and nature proposed at the 19 th CPC National Congress,it is of great significance to build a good spatial relationship between the town and its water system.Using the grid method,this paper calculates the fractal dimension of construction land and water space of 20 towns in Suzhou City since 1995,finding that the fractal dimension of town construction land rises rapidly,whereas that of water space drops slowly on a high dimension.In addition,the spatial form of town construction land and water space form are characterized by planar aggregation and sporadic growth respectively.The paper discusses the evolutionary characteristics of the fractal correlation of construction land and water space in towns with low-,medium-,and high-density water networks,as well as the represented spatial form relations and the underlying relationship between humans and nature.It concludes with an ecological restoration strategy of the two-way interaction between construction land and water space in different types of towns,which may provide a reference for the ecological progress of towns in southern Jiangsu Province.