Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Mechanical Properties of Medicago Sativa and Euphorbia Hypericifolia Root-Soil Complex
[Objective] The effects of soil moisture content and root area ratio on the soil consolidation effect of Medicago sativa and Euphorbia hypericifolia root systems and the interaction mechanism of root-soil were studied in order to provide scientific basis for selecting plant species and controlling soil moisture content in ecological restoration of mines. [Methods] Wild M. sativa and E. hypericifolia were observed on a Haizhou open pit mine slope in Burin City, Liaoning Pvocince. Tests were conducted to determine the tensile properties of the root systems. The root-soil complex shear test was used to determine the optimum moisture content of the root systems of the two plants. The root-soil composite shear optimization test was conducted based on the optimal moisture content to determine the optimal root area ratio for soil consolidation efficiency. [Results] ① The tensile resistance of the root systems of the two species increased as a power function of root diameter. The tensile strength of the root systems decreased as a power function of root diameter. ② The cohesive force of the vegetative soil and the two root-soil complexes tended to increase and then decrease with increasing moisture content, and the angle of internal friction tended to decrease with increasing moisture content. ③ The M. sativa and E. hypericifolia root systems had the greatest soil consolidation effect when the moisture content was 25% and 21%, respectively. ④ At the optimal moisture content, the greatest soil consolidation efficiency was achieved when the root area ratios of the M. sativa and E. hypericifolia root systems were 0.04% and 0.08%, respectively. [Conclusion] The morphological and mechanical effects of the E. hypericifolia root system made it the superior species because of its greater soil consolidation than the M. sativa root system.
Mechanical Properties of Medicago Sativa and Euphorbia Hypericifolia Root-Soil Complex
[Objective] The effects of soil moisture content and root area ratio on the soil consolidation effect of Medicago sativa and Euphorbia hypericifolia root systems and the interaction mechanism of root-soil were studied in order to provide scientific basis for selecting plant species and controlling soil moisture content in ecological restoration of mines. [Methods] Wild M. sativa and E. hypericifolia were observed on a Haizhou open pit mine slope in Burin City, Liaoning Pvocince. Tests were conducted to determine the tensile properties of the root systems. The root-soil complex shear test was used to determine the optimum moisture content of the root systems of the two plants. The root-soil composite shear optimization test was conducted based on the optimal moisture content to determine the optimal root area ratio for soil consolidation efficiency. [Results] ① The tensile resistance of the root systems of the two species increased as a power function of root diameter. The tensile strength of the root systems decreased as a power function of root diameter. ② The cohesive force of the vegetative soil and the two root-soil complexes tended to increase and then decrease with increasing moisture content, and the angle of internal friction tended to decrease with increasing moisture content. ③ The M. sativa and E. hypericifolia root systems had the greatest soil consolidation effect when the moisture content was 25% and 21%, respectively. ④ At the optimal moisture content, the greatest soil consolidation efficiency was achieved when the root area ratios of the M. sativa and E. hypericifolia root systems were 0.04% and 0.08%, respectively. [Conclusion] The morphological and mechanical effects of the E. hypericifolia root system made it the superior species because of its greater soil consolidation than the M. sativa root system.
Mechanical Properties of Medicago Sativa and Euphorbia Hypericifolia Root-Soil Complex
Hai Long (Autor:in) / Tan Shilin (Autor:in) / Xu Bo (Autor:in)
2023
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
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