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Effects of Different Grazing Treatments on the Root System of Stipa krylovii Steppe

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  • Tian Tian

    (Desert Science and Engineering College, Inner Mongolia Agricultural University, Hohhot 010018, China
    Yinshanbeilu National Field Research Station of Steppe Eco-Hydrological System, China Institute of Water Resources and Hydropower Research, Beijing 100038, China
    These authors contributed equally to this work.)

  • Jianying Guo

    (Yinshanbeilu National Field Research Station of Steppe Eco-Hydrological System, China Institute of Water Resources and Hydropower Research, Beijing 100038, China
    Institute of Water Resources for Pastoral Area, Ministry of Water Resources, Hohhot 010020, China
    These authors contributed equally to this work.)

  • Zhenqi Yang

    (Yinshanbeilu National Field Research Station of Steppe Eco-Hydrological System, China Institute of Water Resources and Hydropower Research, Beijing 100038, China
    Institute of Water Resources for Pastoral Area, Ministry of Water Resources, Hohhot 010020, China)

  • Zhenyu Yao

    (Yinshanbeilu National Field Research Station of Steppe Eco-Hydrological System, China Institute of Water Resources and Hydropower Research, Beijing 100038, China
    Institute of Water Resources for Pastoral Area, Ministry of Water Resources, Hohhot 010020, China)

  • Xinyu Liu

    (Yinshanbeilu National Field Research Station of Steppe Eco-Hydrological System, China Institute of Water Resources and Hydropower Research, Beijing 100038, China
    Institute of Water Resources for Pastoral Area, Ministry of Water Resources, Hohhot 010020, China)

  • Ziwei Wang

    (Desert Science and Engineering College, Inner Mongolia Agricultural University, Hohhot 010018, China
    Yinshanbeilu National Field Research Station of Steppe Eco-Hydrological System, China Institute of Water Resources and Hydropower Research, Beijing 100038, China)

Abstract

Plants’ root properties are closely related to their ecological adaptability. This study aimed to clarify the differences in root properties of Stipa krylovii under different grazing disturbances. The morphological characteristics of root length, root surface area, root volume, root tip number, specific root length, and specific surface area of S. krylovii were compared under no grazing, light grazing, moderate grazing and heavy grazing conditions. The ecological adaptability to grazing pressure was also examined. Results showed that the underground biomass density decreased with the increase in grazing intensity. Grazing disturbance can lead to changes in plant community characteristics, and roots adapt to changes in these environmental factors by adjusting their distribution. Among the six root configuration parameters, those under light grazing were significantly higher than those under the other grazing types. The root length and root surface area were concentrated in the range of 0–2 mm. Mild grazing and moderate grazing were conducive to fine root penetration and contact with soil. Moderate grazing disturbance was beneficial to grassland vegetation productivity and played an important role in the stability and sustainable utilization of grassland ecosystem.

Suggested Citation

  • Tian Tian & Jianying Guo & Zhenqi Yang & Zhenyu Yao & Xinyu Liu & Ziwei Wang, 2024. "Effects of Different Grazing Treatments on the Root System of Stipa krylovii Steppe," Sustainability, MDPI, vol. 16(10), pages 1-11, May.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:10:p:3975-:d:1391412
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    References listed on IDEAS

    as
    1. Martine J. J. Hoogsteen & Evert-Jan Bakker & Nick van Eekeren & Pablo A. Tittonell & Jeroen C. J. Groot & Martin K. van Ittersum & Egbert A. Lantinga, 2020. "Do Grazing Systems and Species Composition Affect Root Biomass and Soil Organic Matter Dynamics in Temperate Grassland Swards?," Sustainability, MDPI, vol. 12(3), pages 1-17, February.
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