Investigating the effects of density, water state, stress history, and root traits on soil properties

The gap

Evidence profile

Sourced from the limitations and inline gaps and future-work section of the source papers, classified as general, drawn from work published between 2025 and 2026, spanning 2 journals. Those papers have been cited 7 times in total.

Supporting evidence — 4 representative gaps

• Static and cyclic liquefaction instability of reinforced soil with plant roots (2026) · Acta Geotechnica · doi

  the reconstituted root-reinforced soil specimens in laboratory tests. In such specimens, the orientation of roots differs from that in natural root systems, exhibiting a root fabric anisotropy that does not correspond to that under actual field conditions. Although some observed trends are consistent with those reported in previous studies, artificially prepared specimens cannot fully reproduce the dominant root orientations under natural conditions, which may lead to potential bias in evaluating the reinforcing effect. Future experimental work should therefore focus on soil specimens containing naturally grown roots to better represent field-scale conditions and improve the applicability of the results for nature-based slope stabilization. The relationship between CSR and Nf in Figure 9 can be expressed by the most widely accepted equation proposed by Saxena et al., as shown in Eq. (3). This equation is used to fit the test data from this study, and the resulting regression equations are provided in Figure 9. CSR ¼ a (cid:3) N(cid:4)b ð3Þ f The cyclic resistance ratio CRR15 is another important index to evaluate the cyclic liquefaction resistance of soil, defined as the CSR value corresponding to Nf ¼ 15. Many studies have determined CRR15 values using regression equations derived from the CSR-Nf curves.

  generallimitationsevidence 5/5
  Keywords: root soil specimens conditions roots natural equation regression equations cyclic resistance reconstituted reinforced laboratory tests
• Variation Patterns of Fine Root Biomass, Production, and Turnover Rates in Four Subtropical Forests of China (2025) · Forests · cited 7× · doi

  Future studies should focus on the long-term impacts of root dynamics on soil properties and forest health under changing climatic conditions [22,26]. Future research could explore the underlying mechanisms driving differences in fine root dynamics, particularly the role of soil properties, environmental stressors, and nutrient availability.

  generalinline gapsevidence 5/5
  Keywords: future root dynamics soil properties focus long term impacts forest health changing climatic conditions explore
• Vertical Mechanical Stratification of Young Eucalyptus globulus-Rooted Andean Soils Across Seven Contrasting Soil Classes (2026) · Forests · doi

  Investigate the effects of density, water state, stress history, and root traits on soil properties, - Examine the relationship between RC and mechanical root traits, - Conduct further studies on the causal relationships between soil properties and root reinforcement

  generalfuture-work sectionevidence 5/5
  Keywords: investigate effects density water state stress history root
• Static and cyclic liquefaction instability of reinforced soil with plant roots (2026) · Acta Geotechnica · doi

  Further studies are needed to investigate the mechanical mechanisms by which roots affect the static and cyclic liquefaction behavior of soil. The study of the influence of roots on static liquefaction instability and cyclic liquefaction resistance should be extended to other types of soils and loading conditions.

  generalfuture-work sectionevidence 4/5
  Keywords: further studies needed investigate mechanical mechanisms roots affect

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