基于历史卫星遥感影像对城区空间形态演变的研究——以山东省潍坊市为例

Study on Urban Spatial Morphology Evolution Based on Historical Satellite Remote Sensing Images——Setting Weifang City in Shandong Province as an Example

摘要:

基于潍坊市近50年来历史遥感影像，通过人机结合的方式，对历史影像进行中心城区范围提取，并开展面积变化、扩张速度和扩张强度、紧凑度、分形维数、重心迁移等相关指数的统计分析，发现潍坊市中心城区扩张的历史演变规律。通过提取水系、道路等城市发展相关要素，分析对其历史变化情况进行专题分析，以此为城市发展和规划提供数据和决策支撑。研究发现，潍坊市中心城区的空间形态演变规律初期向东侧发展，与寒亭区、坊子区形成三角状星型结构。后发展形成东西一体相连的单中心城区结构，最终形成潍坊市中心城区东西、南北十字结构。

Abstract:

Based on historical remote sensing images of Weifang city in the past 50 years, the scope of the central urban area from the historical images has been extracted by means of manmachine combination in this paper, and statistical analysis on the relevant indexes have been carried out, such as area change, expansion speed and expansion intensity, compactness, fractal dimension and center of gravity migration, so as to find the historical evolution law of central urban expansion in Weifang city. By extracting elements related to urban development, such as water system and road, and analyzing their historical changes, thematic analysis has been carried out to provide data and decisionmaking support for urban development and planning. It is found that the spatial pattern of Weifang city downtown developed eastward at the beginning, forming a triangular star structure with Hanting district and Fangzi district. It has developed into a single central urban structure connected with the east and the west, and finally formed a cross structure between the east and the south in the central urban area of Weifang city.