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Landscape Pattern Changes and Climate Response in Nagqu Hangcuo National Wetland Park in the Tibetan Plateau

Author

Listed:
  • Xiaoping Zhang

    (School of Surveying and Geoinformation Engineering, East China University of Technology, Nanchang 330013, China)

  • Xinyi Wang

    (School of Surveying and Geoinformation Engineering, East China University of Technology, Nanchang 330013, China)

  • Zihong Hu

    (School of Surveying and Geoinformation Engineering, East China University of Technology, Nanchang 330013, China)

  • Juncai Xu

    (Department of Civil Engineering, Case Western Reserve University, Cleveland, OH 44106, USA)

Abstract

Wetlands are vital ecosystems in the Tibetan Plateau that play a crucial role in water conservation, flood storage, and biodiversity maintenance. They are sensitive to climate change and typically have high ecological and environmental quality levels due to minimal human disturbance. This study aimed to quantify landscape pattern changes within the Nagqu Hangcuo National Wetland Park (NNWP) and identify the impact of climate on wetland change. Using remote sensing data from six periods (1990, 1995, 2000, 2005, 2010, and 2015), dynamic change analysis, landscape pattern analysis, and correlation analysis were employed to determine the evolutionary features of the wetland landscape and explore their relationship with climatic factors. The results showed that the total wetland area increased from 15.11 km 2 in 1990 to 15.23 km 2 in 2015. The meadow area increased the most among landscape types, primarily converted from swamps. Over 25 years, the fragmentation of the NNWP’s landscape increased while diversity decreased and its shape became more complex. Meadows were more sensitive to climatic factors than other landscape types, with correlation coefficients between wetland separation and sunshine duration being more significant than other climatic factors. Therefore, it is imperative to monitor landscape pattern changes and the effects of climate change to better protect wetland parks through long-term planning, suitable mechanisms, and advanced technology.

Suggested Citation

  • Xiaoping Zhang & Xinyi Wang & Zihong Hu & Juncai Xu, 2023. "Landscape Pattern Changes and Climate Response in Nagqu Hangcuo National Wetland Park in the Tibetan Plateau," Sustainability, MDPI, vol. 15(13), pages 1-15, June.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:13:p:10200-:d:1180716
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    References listed on IDEAS

    as
    1. Yihao Zhang & Jianzhong Yan & Xian Cheng & Xinjun He, 2021. "Wetland Changes and Their Relation to Climate Change in the Pumqu Basin, Tibetan Plateau," IJERPH, MDPI, vol. 18(5), pages 1-24, March.
    2. Zhao, Wenzhi & Liu, Bing & Zhang, Zhihui, 2010. "Water requirements of maize in the middle Heihe River basin, China," Agricultural Water Management, Elsevier, vol. 97(2), pages 215-223, February.
    3. Duong H Nong & Christopher A Lepczyk & Tomoaki Miura & Jefferson M Fox, 2018. "Quantifying urban growth patterns in Hanoi using landscape expansion modes and time series spatial metrics," PLOS ONE, Public Library of Science, vol. 13(5), pages 1-18, May.
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