Urban Spatial Structure Evolution Under the Influence of Port Industrial Aggregation:A Case Study of Dalian
以大连为例，利用遥感和GIS技术提取土地利用信息，结合分形和重心理论，分析港口产业集聚对城市空间结构演变的影响规律，为港口城市可持续发展提供决策支持。
The appearance of port industry aggregation produces a profound and lasting effect on propelling port city spatial structure's progress.To analyze port city spatial structure evolution,the paper addresses from the process of urban spatial structure evolution under the influence of port industry aggregation,choosing Dalian as study object,based on the technology of remote sensing analysis and geographic information system to extract geographic information about urban land utilization,combined with the theory of fractal and spatial gravity center,and thus analyzes the law of port city spatial evolution.On the foundation of the proposed law,the port city spatial structure evolution phenomena are discussed with overall consideration on both factors from social population and industrial economy implicated during port industry aggregation process.Results show that this study could reveal the process and law of port city spatial structure evolution from the respective of urban spatial increase rate,spatial pattern,fractural evolution and gravity center change,and provide theory basis and decision-making support for the improvement of port city spatial structure evolution's rationality,so as to achieve port city's sustainable development.