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‘Urban-Rural’ Gradient Analysis of Landscape Changes around Cities in Mountainous Regions: A Case Study of the Hengduan Mountain Region in Southwest China

Author

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  • Erfu Dai

    (Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
    University of Chinese Academy of Sciences, Beijing 100049, China)

  • Yahui Wang

    (Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
    University of Chinese Academy of Sciences, Beijing 100049, China)

  • Liang Ma

    (Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
    University of Chinese Academy of Sciences, Beijing 100049, China)

  • Le Yin

    (Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
    University of Chinese Academy of Sciences, Beijing 100049, China)

  • Zhuo Wu

    (School of Geographical Sciences, Guangzhou University, Guangzhou 510006, China)

Abstract

It is of great significance to explore landscape pattern changes around urban areas to maintain regional ecological security and encourage sustainable development. Few studies have focused on the small cities located in the mountain regions. In this study, we established an ‘urban-rural’ gradient, and combined with landscape metrics to analyze the spatial-temporal changes of the landscape pattern around cities located in the Hengduan Mountain region in China. We also explored the impacts of topography on urban sprawl using the ‘relief degree of land surface’ index. Our results showed that: (1) There was an inverse relationship between the urban sprawl and restricted topography; (2) From the city center to rural areas, the landscape dominance degree and connectivity decreased initially and then increased, while the diversity presented an opposite trend and the shape complexity increased first and then fluctuated; (3) For temporal changes, in the internal buffers, the landscape dominance degree and connectivity increased, and the shape complexity and diversity decreased. However, in the outer buffers, the landscape showed opposite trends. It is advisable to use gradient and landscape metrics to explore landscape pattern changes. Similar to cities on plains, the landscape around mountain cities exhibits a circular structure, however, it also possesses unique characteristics when facing topographic restrictions.

Suggested Citation

  • Erfu Dai & Yahui Wang & Liang Ma & Le Yin & Zhuo Wu, 2018. "‘Urban-Rural’ Gradient Analysis of Landscape Changes around Cities in Mountainous Regions: A Case Study of the Hengduan Mountain Region in Southwest China," Sustainability, MDPI, vol. 10(4), pages 1-21, March.
    • Handle: RePEc:gam:jsusta:v:10:y:2018:i:4:p:1019-:d:138847
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    References listed on IDEAS

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    Cited by:

    1. Yiliang Wan & Chuxiong Deng & Tao Wu & Rui Jin & Pengfei Chen & Rong Kou, 2019. "Quantifying the Spatial Integration Patterns of Urban Agglomerations along an Inter-City Gradient," Sustainability, MDPI, vol. 11(18), pages 1-21, September.
    2. Salvador García-Ayllón, 2018. "Predictive Diagnosis of Agricultural Periurban Areas Based on Territorial Indicators: Comparative Landscape Trends of the So-Called “Orchard of Europe”," Sustainability, MDPI, vol. 10(6), pages 1-22, May.
    3. Jie Zheng & Guodong Chen & Tiantian Zhang & Mingjing Ding & Binglin Liu & Hao Wang, 2021. "Exploring Spatial Variations in the Relationships between Landscape Functions and Human Activities in Suburban Rural Communities: A Case Study in Jiangning District, China," IJERPH, MDPI, vol. 18(18), pages 1-19, September.
    4. Zhen Yang & Yang Hong & Qingbiao Guo & Xuexiang Yu & Mingsong Zhao, 2022. "The Impact of Topographic Relief on Population and Economy in the Southern Anhui Mountainous Area, China," Sustainability, MDPI, vol. 14(21), pages 1-20, November.
    5. Jin Sun & Liming Liu & Klaus Müller & Peter Zander & Guoping Ren & Guanyi Yin & Yingjie Hu, 2018. "Surplus or Deficit? Spatiotemporal Variations of the Supply, Demand, and Budget of Landscape Services and Landscape Multifunctionality in Suburban Shanghai, China," Sustainability, MDPI, vol. 10(10), pages 1-21, October.

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