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<p>In civil and geotechnical engineering, slope stability persists as an immense dispute, especially despite expanding climatic variability and varying land utilization. Despite being essential in controlling slope behaviour, vegetation and hydrological processes tend to be overlooked in conventional stability models due to their intricate relationships. The conceptual, experimental, and modelling frameworks concerning vegetation hydrology and slope interactions VHS are thoroughly synthesised in this review. Hydrological and vegetation dynamics, root reinforcement (RR) mechanics, and the inclusion of geotechnical-hydrological coupled models are all addressed. The effects of varying infiltration scenarios, influenced by the volume, duration, and intensity of rainfall, on slope stability and vegetation responses are highlighted. To promote the accuracy of models and practical comprehension, findings from long-term field monitoring and laboratory experiments are addressed. Among the tested groundcover types, Trifolium repens was the most effective, reducing soil loss by 91.5% and runoff volume by 25.5% compared to bare soil. The ability of bioengineering tactics, such as vegetation-based methods and species selection, to evolve to various hydrological systems is reviewed. Additionally, research gaps, future initiatives, root decay, and temporal variability are identified. Automatically integrated models that merge hydrological processes such as variable infiltration and preferential flow, vegetation development, and RR with geotechnical slope stability are few, especially in situations that are impacted by climate change and seasonal variables. Likewise, the growth of viable, sustainable slope stabilisation techniques is hampered by a lack of long-term field data and a lack of knowledge particular to specific species and soil types. This review underscores the critical role of vegetation in slope stabilization by integrating biological and physical systems under varying hydrological conditions. It highlights the effectiveness of vegetation in reducing erosion and runoff, while identifying key research gaps in dynamic modeling and long-term field validation.</p>

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Vegetation hydrology and slope interaction under variable infiltration: a state-of-the-art review

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年10月15日

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  • Amit Kumar,
  • Abhijit Anand,
  • Ran Vijay Singh,
  • Ramesh Kumar,
  • Malvika Gohil

摘要

In civil and geotechnical engineering, slope stability persists as an immense dispute, especially despite expanding climatic variability and varying land utilization. Despite being essential in controlling slope behaviour, vegetation and hydrological processes tend to be overlooked in conventional stability models due to their intricate relationships. The conceptual, experimental, and modelling frameworks concerning vegetation hydrology and slope interactions VHS are thoroughly synthesised in this review. Hydrological and vegetation dynamics, root reinforcement (RR) mechanics, and the inclusion of geotechnical-hydrological coupled models are all addressed. The effects of varying infiltration scenarios, influenced by the volume, duration, and intensity of rainfall, on slope stability and vegetation responses are highlighted. To promote the accuracy of models and practical comprehension, findings from long-term field monitoring and laboratory experiments are addressed. Among the tested groundcover types, Trifolium repens was the most effective, reducing soil loss by 91.5% and runoff volume by 25.5% compared to bare soil. The ability of bioengineering tactics, such as vegetation-based methods and species selection, to evolve to various hydrological systems is reviewed. Additionally, research gaps, future initiatives, root decay, and temporal variability are identified. Automatically integrated models that merge hydrological processes such as variable infiltration and preferential flow, vegetation development, and RR with geotechnical slope stability are few, especially in situations that are impacted by climate change and seasonal variables. Likewise, the growth of viable, sustainable slope stabilisation techniques is hampered by a lack of long-term field data and a lack of knowledge particular to specific species and soil types. This review underscores the critical role of vegetation in slope stabilization by integrating biological and physical systems under varying hydrological conditions. It highlights the effectiveness of vegetation in reducing erosion and runoff, while identifying key research gaps in dynamic modeling and long-term field validation.