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Influence of Surface Water on Desert Vegetation Expansion at the Landscape Scale: A Case Study of the Daliyabuyi Oasis, Taklamakan Desert

Author

Listed:
  • Hao Li

    (College of Resources and Environment Science, Xinjiang University, Urumqi 830046, China
    Institute of Arid Ecology and Environment, Xinjiang University, Urumqi 830046, China
    Key Laboratory of Oasis Ecology, Xinjiang University, Urumqi 830046, China)

  • Qingdong Shi

    (College of Resources and Environment Science, Xinjiang University, Urumqi 830046, China
    Institute of Arid Ecology and Environment, Xinjiang University, Urumqi 830046, China
    Key Laboratory of Oasis Ecology, Xinjiang University, Urumqi 830046, China)

  • Yanbo Wan

    (College of Resources and Environment Science, Xinjiang University, Urumqi 830046, China
    Institute of Arid Ecology and Environment, Xinjiang University, Urumqi 830046, China
    Key Laboratory of Oasis Ecology, Xinjiang University, Urumqi 830046, China)

  • Haobo Shi

    (College of Resources and Environment Science, Xinjiang University, Urumqi 830046, China
    Institute of Arid Ecology and Environment, Xinjiang University, Urumqi 830046, China
    Key Laboratory of Oasis Ecology, Xinjiang University, Urumqi 830046, China)

  • Bilal Imin

    (College of Resources and Environment Science, Xinjiang University, Urumqi 830046, China
    Institute of Arid Ecology and Environment, Xinjiang University, Urumqi 830046, China
    Key Laboratory of Oasis Ecology, Xinjiang University, Urumqi 830046, China)

Abstract

Surface water is an important factor affecting vegetation change in desert areas. However, little research has been conducted on the effects of surface water on vegetation expansion. In this study, the annual spatial distribution range of vegetation and surface water in the Daliyabuyi Oasis from 1990 to 2020 was extracted using Landsat time-series images. Based on multi-temporal and multi-scale remote sensing images, several plots were selected to demonstrate the process of landform change and vegetation expansion, and the influence of surface water on vegetation expansion was analyzed. The results show that the vegetation distribution and surface water coverage have increased from 1990 to 2020; and surface water is a critical factor that drives the expansion of vegetation. On the one hand, surface water in the study area was essential for reshaping the riparian landform, driving the transformation of dunes into floodplains, and increasing the potential colonization sites for vegetation. However, landform changes ultimately changed the redistribution of surface water, ensuring that enough water and nutrients provided by sediment were available for plant growth. Our study provides a critical reference for the restoration of desert vegetation and the sustainable development of oases.

Suggested Citation

  • Hao Li & Qingdong Shi & Yanbo Wan & Haobo Shi & Bilal Imin, 2021. "Influence of Surface Water on Desert Vegetation Expansion at the Landscape Scale: A Case Study of the Daliyabuyi Oasis, Taklamakan Desert," Sustainability, MDPI, vol. 13(17), pages 1-17, August.
    • Handle: RePEc:gam:jsusta:v:13:y:2021:i:17:p:9522-:d:620902
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    References listed on IDEAS

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    1. Li Hao & Shi Qingdong & Bilal Imin & Nijat Kasim, 2020. "Methodology for optimizing quadrat size in sparse vegetation surveys: A desert case study from the Tarim Basin," PLOS ONE, Public Library of Science, vol. 15(8), pages 1-16, August.
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