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Urban–Rural Boundary Delineation Based on Population Spatialization: A Case Study of Guizhou Province, China

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  • Hong Wang

    (Faculty of Resources and Environmental Science, Hubei University, Wuhan 430062, China
    Hubei Key Laboratory of Regional Development and Environmental Response, Wuhan 430062, China)

  • Xiaotian Yu

    (Faculty of Resources and Environmental Science, Hubei University, Wuhan 430062, China)

  • Lvyin Luo

    (Faculty of Resources and Environmental Science, Hubei University, Wuhan 430062, China)

  • Rong Li

    (Faculty of Resources and Environmental Science, Hubei University, Wuhan 430062, China)

Abstract

Rational delineation of urban–rural boundaries is a foundational prerequisite for holistic urban and rural development planning and rational resource allocation. However, using a single data source for urban–rural boundaries yields non-comprehensive results. To address this problem, the present study proposes a method for extracting urban–rural boundaries using multiple sources such as population data, nighttime light data, land use, and points of interest (POI) data. Considering Guizhou Province for a case study, this study presents a two-step method for identifying urban–rural boundaries. First, the random forest model was combined with the dasymetric mapping method to obtain the province’s population spatialization data with a 30-m resolution. Second, based on the spatialized population, the urban–rural boundary for Guizhou Province in 2020 was extracted using the breaking point method. This method comprehensively integrated the benefits of various data and judiciously extracted the boundaries of the main urban areas and small and medium-sized towns of each city in the study province at the same spatial scale. The stratified random sampling method revealed an average overall accuracy of 88.05%. The proposed method has high universality and application value and can be useful for accurate and practical identification of urban–rural boundaries.

Suggested Citation

  • Hong Wang & Xiaotian Yu & Lvyin Luo & Rong Li, 2024. "Urban–Rural Boundary Delineation Based on Population Spatialization: A Case Study of Guizhou Province, China," Sustainability, MDPI, vol. 16(5), pages 1-17, February.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:5:p:1787-:d:1343362
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    References listed on IDEAS

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    1. David Harvey, 1970. "Social Processes And Spatial Form: An Analysis Of The Conceptual Problems Of Urban Planning," Papers in Regional Science, Wiley Blackwell, vol. 25(1), pages 47-69, April.
    2. James LeSage & Joni Charles, 2008. "Using home buyers’ revealed preferences to define the urban–rural fringe," Journal of Geographical Systems, Springer, vol. 10(1), pages 1-21, March.
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