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A Multidimensional Framework for Quantitative Analysis and Evaluation of Landscape Spatial Structure in Urban Parks: Integrating 3D Point Cloud and Network Analysis

Author

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  • Ziqian Cheng

    (School of Architecture, Southeast University, Nanjing 210096, China)

  • Yuning Cheng

    (School of Architecture, Southeast University, Nanjing 210096, China)

Abstract

Landscape spatial structure serves as the foundational framework for vegetation arrangement and spatial organization, playing a crucial role in assessing landscape morphology. Traditional 2D graph theory methods have provided insights into planar structural characteristics but fail to capture the complexity of three-dimensional spatial attributes and organizational processes inherent in landscape systems. To address these limitations, this study proposes a novel multidimensional framework for the quantitative analysis and evaluation of landscape spatial structure by integrating 3D point cloud technology with spatial network analysis. The methodology consists of three key components: (1) the formulation of multidimensional spatial organization theory, (2) spatial unit extraction and structure analysis through ArcGIS 10.5 and Cytoscape v3.6.1, and (3) the development of an indicator system for evaluating spatial structure organization. The framework was validated through the analysis of 30 urban parks, where the regularity and range of indicators are generalized to establish evaluation criteria and determine weights. The findings indicate that spatial structure indicators are moderation indicators with optimal value ranges. The evaluation system was subsequently applied across the 30 parks for comprehensive evaluation. A total of 6 of 30 parks have comprehensive scores over 0.95. In practical application, the design score of Shuyang Park improved from 0.692 to 0.826 after evaluation and optimization, demonstrating the method’s effectiveness. This study underscores the potential of digital methodologies in advancing landscape spatial structure modeling, enhancing the understanding of spatial organization, and transitioning subjective assessments toward evidence-based objective evaluations. The proposed methodology and findings offer valuable insights for diagnosing, assessing, optimizing, and managing urban green spaces.

Suggested Citation

  • Ziqian Cheng & Yuning Cheng, 2025. "A Multidimensional Framework for Quantitative Analysis and Evaluation of Landscape Spatial Structure in Urban Parks: Integrating 3D Point Cloud and Network Analysis," Land, MDPI, vol. 14(4), pages 1-27, April.
    • Handle: RePEc:gam:jlands:v:14:y:2025:i:4:p:826-:d:1632148
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    References listed on IDEAS

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