基于手机信令数据的宁镇扬地区空间结构研究

The Spatial Structure of Nanjing-Zhenjiang-Yangzhou Region Based on Mobile Signaling Data

伴随着中国城镇化进入中后期,城市群的区域空间联系和要素流动更加紧密,以“流动空间”视角探索区域空间结构和协调发展程度具有重要意义。本文基于宁镇扬地区的手机信令实测数据,对人群空间活动进行量化分析,进而对这一区域的空间结构进行识别。研究发现:①宁镇扬地区已呈现出多中心网络化的区域空间结构,镇江、扬州的联系网络趋于完善,丹阳、句容等县级城市联系网络正在发育,各中心城市之间联系增强。②通勤流动的吸引量与城市等级规模呈现出不匹配性,跨界城镇组团及生态旅游资源优势地区吸引力凸显。③跨界联系活跃、发展呈多样性,其中宁镇中心城连线上各城镇单元联系强度最高,已形成较明显的跨界联系走廊。

Entering the middle and late period of urbanization,the regional spatial connections and the factor flows in urban agglomerations in China become closer.The investigation into regional spatial structure and coordinated development from the perspective of“flow space”has important significance.Based on the data of mobile signaling in Nanjing-Zhenjiang-Yangzhou region,this paper measures the human activities and identifies regional spatial structure.This paper finds that:1)Nanjing-Zhenjiang-Yangzhou region has a regional structure of multi-center networks.The connections between Zhenjiang and Yangzhou tend to be improved.The country-level city contact of Danyang and Jurong are developing,and the connections between the central cities have been strengthened.2)The amount of commuting flows has a mismatch with the scale of cities,and the attractions of cross-border areas and areas with advantaged eco-tourism resources are prominent.3)The cross-border connections are active.The intensity of connections among cities and towns along the connection lines between the centers of Nanjing and Zhenjiang is high.