中文摘要：

港口城市的发展历程表明，临港产业的集聚对城市空间结构的演变产生极为深远的影响。为深入研究港口城市空间结构演变问题，从临港产业集聚与城市空间结构演化过程出发，以大连地区为研究对象，基于遥感分析与地理信息系统技术手段，提取城市空间利用地理信息，结合分形几何、空问重心等理论，综合考虑临港产业集聚发展过程中城市社会人口、产业经济等多方面因素，探讨了港口城市空间结构演化现象，归纳总结了港口城市空间结构演变规律。结果表明：该研究可分别从城市空间增长速率、结构形态、分型演变与重心转移角度揭示港口城市空间结构演变过程与规律，可为提高港口城市空间结构演化合理性提供了理论依据和决策支持。

英文摘要：

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.