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Multi-Time Scale Analysis of Urbanization in Urban Thermal Environment in Major Function-Oriented Zones at Landsat-Scale: A Case Study of Hefei City, China

Author

Listed:
  • Yuting Lu

    (School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China)

  • Penghai Wu

    (Engineering Center for Geographic Information of Anhui Province, School of Resources and Environmental Engineering, Anhui University, Hefei 230601, China
    Information Materials and Intelligent Sensing Laboratory of Anhui Province, Anhui University, Hefei 230601, China
    Anhui Province Key Laboratory of Wetland Ecosystem Protection and Restoration, School of Resources and Environmental Engineering, Anhui University, Hefei 230601, China)

  • Kaijian Xu

    (School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China)

Abstract

Urbanization and increasing demand for natural resources and land have affected the urban thermal environment. This is an important hot topic in urban climate research. In this study, we obtained multi-time scale land surface temperatures (LST) at the Landsat scale in Hefei, China, from 2011 to 2020. The evolution of the surface urban heat island (SUHI) was analyzed, and the contribution index (CI), urban thermal field variation index (UTFVI), and landscape pattern were evaluated to analyze the thermal environment mechanism of a major function-oriented zone (MFOZ). In addition, we explored the role and mechanism of different MFOZs in a thermal environment. Our results show that the multi-time scale differences in the SUHI were obvious, with the phenomenon of heat islands being concentrated in the main city zone. There are significant multi-time scale differences in the CI of different landscapes under the MFOZ. The UTFVI analysis of the MFOZ shows that the livability of the cities in the core optimization zone (COZ) and modern urbanization and industrialization cluster development zone (IDZ) is poor. MFOZ planning moderately alleviated the urban thermal environment of the entire study area, especially in the agricultural development zone (ADZ) and ecological conservation zone (ECZ). This study can guide the planning of the MFOZ and guide decision-makers in selecting governance zones when planning policies or dividing the key restoration areas of the thermal environment.

Suggested Citation

  • Yuting Lu & Penghai Wu & Kaijian Xu, 2022. "Multi-Time Scale Analysis of Urbanization in Urban Thermal Environment in Major Function-Oriented Zones at Landsat-Scale: A Case Study of Hefei City, China," Land, MDPI, vol. 11(5), pages 1-19, May.
    • Handle: RePEc:gam:jlands:v:11:y:2022:i:5:p:711-:d:811365
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    References listed on IDEAS

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    1. Manish Ramaiah & Ram Avtar & Md. Mustafizur Rahman, 2020. "Land Cover Influences on LST in Two Proposed Smart Cities of India: Comparative Analysis Using Spectral Indices," Land, MDPI, vol. 9(9), pages 1-21, August.
    2. Atin Majumder & Raj Setia & P. K. Kingra & Harjinder Sembhi & Som Pal Singh & Brijendra Pateriya, 2021. "Estimation of land surface temperature using different retrieval methods for studying the spatiotemporal variations of surface urban heat and cold islands in Indian Punjab," Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, Springer, vol. 23(11), pages 15921-15942, November.
    3. Yonaba, R. & Koïta, M. & Mounirou, L.A. & Tazen, F. & Queloz, P. & Biaou, A.C. & Niang, D. & Zouré, C. & Karambiri, H. & Yacouba, H., 2021. "Spatial and transient modelling of land use/land cover (LULC) dynamics in a Sahelian landscape under semi-arid climate in northern Burkina Faso," Land Use Policy, Elsevier, vol. 103(C).
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