International Journal of Environmental Research and Public Health Article Evaluating Spatiotemporal Distribution of Residential Sprawl and Influencing Factors Based on Multi-Dimensional Measurement and GeoDetector Modelling Linlin Zhang 1 , Guanghui Qiao 1,*, Huiling Huang 2, Yang Chen 3 and Jiaojiao Luo 4 1 School of Tourism and Urban-Rural Planning, Zhejiang Gongshang University, Hangzhou 310018, China;
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[email protected] 3 Law School, Ningbo University, Ningbo 315211, China;
[email protected] 4 School of Economics, Zhejiang University of Finance & Economics, Hangzhou 310018, China;
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[email protected] Abstract: Residential sprawl constitutes a main part of urban sprawl which poses a threat to the inhabitant environment and public health. The purpose of this article is to measure the residential sprawl at a micro-scale using a case study of Hangzhou city. An integrated sprawl index on each 1 km × 1 km residential land cell was calculated based on multi-dimensional indices of morphology, population density, land-use composition, and accessibility, followed by a dynamic assessment of residential sprawl. Furthermore, the method of GeoDetector modeling was applied to investigate the potential effects of location, urbanization, land market, and planning policy on the spatial variation of Citation: Zhang, L.; Qiao, G.; Huang, residential sprawl. The results revealed a positive correlation between CO2 emissions and residential H.; Chen, Y.; Luo, J. Evaluating sprawl in Hangzhou. There has been a remarkable increase of sprawl index on residential land Spatiotemporal Distribution of Residential Sprawl and Influencing cells across the inner suburb and outer suburb, and more than three-fifths of the residential growth Factors Based on Multi-Dimensional during 2000–2010 were evaluated as dynamic sprawl.