梳理中国城中村遥感识别进展，揭示数据与方法瓶颈
Mapping Urban Villages in China: Progress and Challenges
- 系统综述城中村遥感识别的区域、数据与方法
- 仅覆盖局部区域，缺乏全国尺度可扩展性验证
- 适合城市规划与地理信息研究者参考
高质量城镇化转型使城中村问题日益突出，但其地理空间数据匮乏，亟需加强城中村制图。本文首次系统回顾了中国城中村识别的研究进展，涵盖研究区域、数据来源与方法。发现现有研究多集中于有限区域和时间段，且因概念模糊、空间异质性及数据可得性不足，导致识别方法在可扩展性、可迁移性与可解释性方面普遍欠缺。未来研究应聚焦全国范围大尺度制图，推动方法标准化与数据整合。
原文摘要 · Abstract (English)
The shift toward high-quality urbanization has brought increased attention to the issue of "urban villages", which has become a prominent social problem in China. However, there is a lack of available geospatial data on urban villages, making it crucial to prioritize urban village mapping. In order to assess the current progress in urban village mapping and identify challenges and future directions, we have conducted a comprehensive review, which to the best of our knowledge is the first of its kind in this field. Our review begins by providing a clear context for urban villages and elaborating the method for literature review, then summarizes the study areas, data sources, and approaches used for urban village mapping in China. We also address the challenges and future directions for further research. Through thorough investigation, we find that current studies only cover very limited study areas and periods and lack sufficient investigation into the scalability, transferability, and interpretability of identification approaches due to the challenges in concept fuzziness and variances, spatial heterogeneity and variances of urban villages, and data availability. Future research can complement and further the current research in the following potential directions in order to achieve large-area mapping across the whole nation...
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