Study on the mechanism of plant root influence on soil properties in expansive soil areas

Open Geosciences, Journal Year: 2025, Volume and Issue: 17(1)

Published: Jan. 1, 2025

Abstract Expansive soil is a type of unsaturated that develops fissures within its body due to dry and wet cycles. These are the primary factor contributing slope instability in expansive regions. In this study, we conducted research on impact herbaceous plant root systems properties Shangluo area Shaanxi. This known for distribution soils. We achieved by planting three types commonly used protection plants. The results revealed significant differences system characteristics among plants: Lolium perenne , Cynodon dactylon Medicago. Particularly, exhibited well-developed heterogeneous with substantial number roots. roots were primarily concentrated interval 0 < L ≤ 0.5 mm. specific gravity tended decrease after planted. growth plants greatly increased soil’s ability hold water. presence significantly improved consolidation effect. entanglement interpenetration effects had influence dispersion macroaggregates formation fabrics. colloid content system. Additionally, enhanced angle internal friction cohesion soil. herbal soils improving structure, increasing nutrient richness, enhancing water retention, augmenting both agglomeration angles, thereby solid capacity. study elucidates mechanisms which exert long-term beneficial areas, prevention control regional ecological security.

Language: Английский

Role of root morphological and architectural traits: Insights into root-inspired anchorage and foundation systems

Biogeotechnics, Journal Year: 2024, Volume and Issue: 3(1), P. 100107 - 100107

Published: May 29, 2024

Language: Английский