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Hydrology–Soil–Vegetation Element Interactions in the Largest Single-Port Artesian Irrigation Area of Asia

Author

Listed:
  • Ziniu Wang

    (The College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China)

  • Limin Duan

    (The College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China
    Inner Mongolia Key Laboratory of Ecohydrology and High Efficient Utilization of Water Resources, Hohhot 010018, China
    Collaborative Innovation Center for Integrated Management of Water Resources and Water Environment in the Inner Mongolia Reaches of the Yellow River, Hohhot 010018, China)

  • Yahui Han

    (The College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China)

  • Jianxun Ji

    (The College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China)

  • Qiwei Shi

    (The College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China)

  • Rongjiang Yao

    (State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China)

  • Yanyun Luo

    (The College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China
    Inner Mongolia Key Laboratory of Ecohydrology and High Efficient Utilization of Water Resources, Hohhot 010018, China
    Collaborative Innovation Center for Integrated Management of Water Resources and Water Environment in the Inner Mongolia Reaches of the Yellow River, Hohhot 010018, China)

  • Tingxi Liu

    (The College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China
    Inner Mongolia Key Laboratory of Ecohydrology and High Efficient Utilization of Water Resources, Hohhot 010018, China
    Collaborative Innovation Center for Integrated Management of Water Resources and Water Environment in the Inner Mongolia Reaches of the Yellow River, Hohhot 010018, China)

Abstract

Climate change and anthropogenic activities have increased the complexity of hydrology–soil–vegetation interactions in arid-region irrigation areas. Therefore, studies on the spatiotemporal characteristics of these interactions can greatly benefit the sustainable development of arid areas. This study developed a spatially granular dataset of the key hydrology, soil, and vegetation elements for the Hetao Irrigation District (HID) for 2000–2020, recognized as the largest single-port artesian irrigation area in Asia, and explored the interactions between these elements by means of a geodetector, the analytic hierarchy process, and the Pearson correlation coefficient. The key results indicated the following: (1) a declining trend of 0.1–0.15 in the comprehensive influence of hydrology–soil–vegetation interactions; increasing significance of hydrologically driven soil and vegetation evolution, with feedback between soil and vegetation; (2) the maximization of the interactions between soil moisture and precipitation and groundwater, with evapotranspiration as the dominant factor regulating hydrology–vegetation interactions; (3) the interactions between hydrology, soil, and vegetation showing nonlinear synergism; (4) and the spatial distributions of the hydrology–soil–vegetation interactions showing significant band-like patterns with weak coupling between the elements.

Suggested Citation

  • Ziniu Wang & Limin Duan & Yahui Han & Jianxun Ji & Qiwei Shi & Rongjiang Yao & Yanyun Luo & Tingxi Liu, 2024. "Hydrology–Soil–Vegetation Element Interactions in the Largest Single-Port Artesian Irrigation Area of Asia," Land, MDPI, vol. 13(12), pages 1-16, December.
    • Handle: RePEc:gam:jlands:v:13:y:2024:i:12:p:2099-:d:1537415
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