The model has limitations in low-gradient terrain

The gap

Evidence profile

Sourced from the stated research gap and limitations section and future-work section and limitations of the source papers, classified as general, drawn from work published between 1978 and 2026, spanning 4 journals. Those papers have been cited 2 times in total.

Supporting evidence — 7 representative gaps

• Mechanical behaviors of rooted soil in triaxial tests and implications for rainfall-induced landslides (2026) · Bulletin of Engineering Geology and the Environment · doi

  There is a need to investigate the mechanical behavior of rooted soil to understand rainfall-induced landslides. The study aims to address the gap in knowledge by exploring how root characteristics regulate soil shear strength and deformation.

  generalstated research gap
  Keywords: there need investigate mechanical behavior rooted soil understand
• Dynamic simulation of slope stability based on TRIGRS model: a case study of cluster landslides in Jiangwan Town, Shaoguan, Guangdong, China (2026) · Bulletin of Engineering Geology and the Environment · doi

  The model has limitations in low-gradient terrain prediction. 16.4% of landslides occurred within 42.7% of simulated stable zones. The study is limited to a single case study in Jiangwan Town, China.

  generallimitations section
  Keywords: model has limitations low-gradient terrain prediction landslides occurred
• Lithological controls on clustered landslides: a case study of landslides triggered by Typhoon Gaemi (2024) in Zixing, Hunan Province, China (2026) · Landslides · doi

  There is a need to understand the spatial distribution, controlling factors, and mobility characteristics of landslides triggered by extreme rainfall events. There is a lack of comprehensive analysis of the mechanisms underlying landslide occurrence and mobility.

  generalstated research gap
  Keywords: there need understand spatial distribution controlling factors mobility
• An Embankment Landslide in Berea Red Sands, Durban (1978) · South African Geographical Journal · doi

  Further studies should investigate the effect of soil moisture content and soil properties on landslide risk. Future research should consider other factors that may contribute to landslides. Additional studies should be conducted to develop predictive models for landslide risk assessment.

  generalfuture-work section
  Keywords: further studies investigate effect soil moisture content properties
• Experimental and numerical study of shear rate effects on residual shear strength and landslide mobility (2026) · Landslides · cited 1× · doi

  The primary limitation of this study arises from the inherent spatial variability of soil properties and the uncertainty associated with the model parameters. Furthermore, the analysis was conducted using a deterministic framework, assuming homogeneous soil conditions across the study area in the LS-RAPID simulations. The triggering mechanism was simulated by progressively increasing pore-water pressure to match field observations of documented landslide events, consistent with the approaches adopted by Sassa et al. (2010), Vadivel and Sennimalai (2019), and Ha et al. (2020). As the objective of this research was to evaluate the influence of shear rate on landslide mobility, the pore-pressure ratios used in the validated model of the Achanakkal and Madithorai cases were maintained constant while assessing variations in runout distance. Future investigations could enhance the robustness of the framework by systematically varying pore-pressure ratios and incorporating rainfall records, thereby enabling the development of riskindexed susceptibility maps that may better support early-warning strategies and land-use planning in rainfall-prone regions (Ha et al. 2020; Weerasinghe et al. 2024). Fig.

  generallimitationsevidence 5/5
  Keywords: pore pressure landslide soil model ratios madithorai runout distance rainfall primary limitation arises inherent spatial
• Experimental and numerical study of shear rate effects on residual shear strength and landslide mobility (2026) · Landslides · cited 1× · doi

  The study identifies a gap in the understanding of the impact of shear rate variation on the residual strength of tropical soil. The study highlights the need for further research on the effects of shear rate on landslide mobility.

  generalstated research gapevidence 5/5
  Keywords: study identifies gap understanding impact shear rate variation
• Quantifying vegetation effects on landslide hazard using a physically based model: implications for catchment-scale prioritization and management (2026) · Frontiers in Forests and Global Change · doi

  Vegetation effects on landslide hazard are difficult to quantify at spatial scales relevant to management. There is a need for effective landslide hazard management strategies in forested mountain regions.

  generalstated research gapevidence 5/5
  Keywords: vegetation effects landslide hazard difficult quantify spatial scales

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