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Responses of NDVI to Climate Change and LUCC along Large-Scale Transportation Projects in Fragile Karst Areas, SW China

Author

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  • Yangyang Wu

    (School of Geography and Resources, Guizhou Education University, Guiyang 550018, China
    School of Earth System Science, Tianjin University, Tianjin 300072, China
    Guizhou Provincial Key Laboratory of Geographic State Monitoring of Watershed, Guizhou Education University, Guiyang 550018, China)

  • Lei Gu

    (College of Geography and Remote Sensing Sciences, Xinjiang University, Urumqi 830017, China)

  • Siliang Li

    (School of Earth System Science, Tianjin University, Tianjin 300072, China)

  • Chunzi Guo

    (School of Earth System Science, Tianjin University, Tianjin 300072, China
    Administration of Ecology and Environment of Haihe River Basin and Beihai Sea Area, Ministry of Ecology and Environment of People’s Republic of China, Tianjin 300061, China)

  • Xiaodong Yang

    (Department of Geography and Spatial Information Techniques, Center for Land and Marine Spatial Utilization and Governance Research, Ningbo University, Ningbo 315211, China
    College of Ecological and Environmental Sciences, Xinjiang University, Urumqi 830017, China)

  • Yue Xu

    (State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China)

  • Fujun Yue

    (School of Earth System Science, Tianjin University, Tianjin 300072, China)

  • Haijun Peng

    (State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China)

  • Yinchuan Chen

    (Shanghai Ecology and Environment Scientific Research Center, Yangtze River Basin Ecological Environment Supervision and Administration Bureau, Ministry of Ecology and Environment of People’s Republic of China, Shanghai 200120, China)

  • Jinli Yang

    (College of Ecological and Environmental Sciences, Xinjiang University, Urumqi 830017, China)

  • Zhenghua Shi

    (College of Ecological and Environmental Sciences, Xinjiang University, Urumqi 830017, China)

  • Guangjie Luo

    (School of Geography and Resources, Guizhou Education University, Guiyang 550018, China
    Guizhou Provincial Key Laboratory of Geographic State Monitoring of Watershed, Guizhou Education University, Guiyang 550018, China)

Abstract

The fragile karst habitat is extremely sensitive to human activities such as large-scale engineering construction. To explore the influence of the construction and operation of the GH (Guiyang-Huangguoshu) highway on the vegetation within a certain range and the response of NDVI to climate factors, Landsat data were used to synthesize annual NDVI maps using the maximum value compositing method. Trend, correlation, and coefficient of variation analyses were performed. The results demonstrate that: (1) During the construction and operation periods, NDVI showed an overall upward trend, and the NDVI value and growth rate in the contrast area were greater than those in the core area; (2) the correlation between temperature and vegetation cover along the GH highway was stronger than that between precipitation and vegetation; (3) construction of the GH highway has had a significant impact on the surrounding vegetation, with the impact on vegetation ecology along the road mainly concentrated within the 2 km range. The increase of artificial surfaces along the road has had a great impact on the NDVI, and the vegetation cover change in the core area is more significant than that in the contrast area; and (4) the overall disturbance of the GH highway project to the surrounding ecology was mainly observed in the form of low and medium fluctuations. This study aims to provide a reference for environmental assessment and management in karst areas.

Suggested Citation

  • Yangyang Wu & Lei Gu & Siliang Li & Chunzi Guo & Xiaodong Yang & Yue Xu & Fujun Yue & Haijun Peng & Yinchuan Chen & Jinli Yang & Zhenghua Shi & Guangjie Luo, 2022. "Responses of NDVI to Climate Change and LUCC along Large-Scale Transportation Projects in Fragile Karst Areas, SW China," Land, MDPI, vol. 11(10), pages 1-16, October.
    • Handle: RePEc:gam:jlands:v:11:y:2022:i:10:p:1771-:d:940350
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    References listed on IDEAS

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    2. Ji Zhang & Shiqi Yang & Shengtian Yang & Li Fan & Xu Zhou, 2023. "Spatio-Temporal Variations of Ecosystem Water Use Efficiency and Its Drivers in Southwest China," Land, MDPI, vol. 12(2), pages 1-15, February.

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