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Eco-Environmental Assessment and Trend Analysis of the Yangtze River Middle Reaches Megalopolis Based on a Modified Remote Sensing Ecological Index

Author

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  • Xiang Zhu

    (College of Urban and Environmental Sciences, Central China Normal University, Wuhan 430079, China
    Key Laboratory for Geographical Process Analysis and Simulation of Hubei Province, Central China Normal University, Wuhan 430079, China)

  • Siyu Wei

    (Changjiang Spatial Information Technology Engineering Co., Ltd., Wuhan 430010, China)

  • Yijin Wu

    (College of Urban and Environmental Sciences, Central China Normal University, Wuhan 430079, China
    Key Laboratory for Geographical Process Analysis and Simulation of Hubei Province, Central China Normal University, Wuhan 430079, China)

Abstract

China’s accelerating pace of urbanization has placed severe pressure on its ecosystems. Hence, the monitoring and assessment of eco-environmental quality has significant implications for sustainable urban development. By introducing a pollution index, a modified remote sensing ecological index (MRSEI) was constructed to more comprehensively evaluate the spatiotemporal distribution of the eco-environment quality in the middle reaches of the Yangtze River where urbanization has been developing rapidly. Future trends in eco-environmental quality were analyzed using Theil–Sen trend analysis, the Mann–Kendall test, and the Hurst exponent. Environmental influencing factors were also analyzed. Our results show that: (1) The impact of pollution factors on urban agglomerations cannot be overlooked. The MRSEI model introduces a pollution indicator to better assess the eco-environmental quality of urban agglomeration areas. (2) The eco-environmental quality is high in the south and east and low in the north and west, with overall levels ranging between moderate and good. (3) The eco-environmental quality remained stable, improved, and degraded in 86.3%, 3.1%, and 10.7% of the study area, respectively. (4) The land use and land cover type are directly related to the eco-environment. Climate factors indirectly affect the eco-environment. Human activities in cities and urban peripheries lead to land use changes and industrial pollution, which significantly affect environmental quality.

Suggested Citation

  • Xiang Zhu & Siyu Wei & Yijin Wu, 2024. "Eco-Environmental Assessment and Trend Analysis of the Yangtze River Middle Reaches Megalopolis Based on a Modified Remote Sensing Ecological Index," Sustainability, MDPI, vol. 16(18), pages 1-19, September.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:18:p:8118-:d:1479816
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    References listed on IDEAS

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    1. Na Chen & Gang Cheng & Jie Yang & Huan Ding & Shi He, 2023. "Evaluation of Urban Ecological Environment Quality Based on Improved RSEI and Driving Factors Analysis," Sustainability, MDPI, vol. 15(11), pages 1-18, May.
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