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The Influence of Urbanization to the Outer Boundary Ecological Environment Using Remote Sensing and GIS Techniques—A Case of the Greater Bay Area

Author

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  • Qingyang Zhang

    (School of Remote Sensing and Information Engineering, Wuhan University, Wuhan 430079, China
    These authors contributed equally to this work.)

  • Xinyan Cai

    (School of Remote Sensing and Information Engineering, Wuhan University, Wuhan 430079, China
    These authors contributed equally to this work.)

  • Xiaoliang Liu

    (State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
    University of Chinese Academy of Sciences, Beijing 100049, China)

  • Xiaomei Yang

    (State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
    University of Chinese Academy of Sciences, Beijing 100049, China)

  • Zhihua Wang

    (State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
    University of Chinese Academy of Sciences, Beijing 100049, China)

Abstract

Urbanization brings great enrichment to human production and life, but also has certain environmental impact on the area where the city is located. Many studies have revealed the negative effects of urbanization on the ecological environment of urban or urban agglomerations, especially in the early stage of urbanization, but there are few studies on the impact on the peripheral ecological space environment. Will the peripheral environment be better off with less human interference as people move to cities during urbanization? In order to answer this question, we took the Guangdong-Hong Kong-Macao Greater Bay Area, the most economically dynamic area in China, as an example to explore the relationship between impervious changes of urban agglomerations monitored by remote sensing in the Bay Area and ecological indicators of forest and grassland in Guangdong Province outside the Bay area. The results showed that:(1) in the past 30 years, the area of grassland outside the bay area did not change regularly, while the area of forest decreased year by year. The landscape indices of forest and grassland were gradually fragmented and discrete. Moreover, the distribution of Fraction Vegetation Coverage (FVC) of forest and grassland has changed since before urbanization. (2) Through correlation analysis, it is found that the changes in forest area and the landscape index of forest and grassland are strongly correlated with the development of urbanization in the Greater Bay Area. This shows that the process of urbanization in the Greater Bay Area will have a non-negligible impact on the peripheral environment. In the process of urban development, we should not only focus on the inner city but also consider the outer environment of the city.

Suggested Citation

  • Qingyang Zhang & Xinyan Cai & Xiaoliang Liu & Xiaomei Yang & Zhihua Wang, 2022. "The Influence of Urbanization to the Outer Boundary Ecological Environment Using Remote Sensing and GIS Techniques—A Case of the Greater Bay Area," Land, MDPI, vol. 11(9), pages 1-18, August.
    • Handle: RePEc:gam:jlands:v:11:y:2022:i:9:p:1426-:d:900640
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    References listed on IDEAS

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    1. Xiaoxin Zhang & Martin Brandt & Xiaowei Tong & Philippe Ciais & Yuemin Yue & Xiangming Xiao & Wenmin Zhang & Kelin Wang & Rasmus Fensholt, 2022. "A large but transient carbon sink from urbanization and rural depopulation in China," Nature Sustainability, Nature, vol. 5(4), pages 321-328, April.
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    1. Jinxing Hu & Cuiying Shao & Zhaolong Zhang, 2022. "The Impact of Sustainable Regional Development Policy on Carbon Emissions: Evidence from Yangtze River Delta of China," Energies, MDPI, vol. 15(24), pages 1-25, December.

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