地理与地理信息科学

随着我国城乡融合的体制机制不断健全,要素流动加速了城乡多功能发展。本文构建城乡地域系统“三生”空间认知的理论框架,融合土地利用、POI、手机信令数据构建城乡多元功能空间的识别方法,以徐州市贾汪区为例,揭示功能空间的格局特征。结果表明:(1)城乡地域系统功能空间的复合性、融合性、交互性显著,据此可将城乡“三生”空间划分为复合空间、融合空间、交互空间和单一空间4种类型。(2)贾汪区城乡“三生”空间具有类型多样、结构异质特征:城市地域以生产空间为主导,地域整体呈现“南产北居”格局;乡村地域形成围绕生活空间的“组团化”结构特征;城乡过渡域的交互空间表现为功能交错、形态离散的格局特征。本文丰富了城乡“三生”空间体系,实现在中小尺度上对复合、融合与交互空间的精细化识别,研究结果可为推进城乡地域的空间治理、功能优化提供科学依据与决策支持。

With the continuous improvement of institutional mechanisms for urban-rural integration in China, the flow of production factors has accelerated multifunctional development in urban and rural areas.This paper constructs a theoretical framework for understanding "production-living-ecological" space(PLES) within the urban-rural territorial system.It develops an identification method for multifunctional spaces by integrating land use data,POI data,and mobile signaling data Using Jiawang District of Xuzhou City as a case study,the research reveals the spatial pattern characteristics of these functional spaces.It is found as follows.(1) The urban-rural territorial system demonstrates significant complexity,integration,and interactivity,leading to a classification of PLES into four types:composite,integrated,interactive,and single-function spaces.(2) Jiawang District exhibits diverse PLES types and heterogeneous structures:urban areas are dominated by production spaces,forming a distinct pattern of "production in the south,living in the north";rural areas exhibit clustered structures centered around living spaces;and the interactive spaces in urban-rural transition zones are characterized by interwoven functions and spatially scattered distribution patterns.This study enriches the PLES system and achieves refined identification of composite,integrated,and interactive spaces at small to medium scales.The findings provide scientific evidence and decision-making support for spatial governance and functional optimization in urban-rural territories.