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Analysis on hydraulic characteristics of improved sandy soil with soft rock

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  • Yike Wang
  • Lei Ge
  • Shi Chendi
  • Huanyuan Wang
  • Jichang Han
  • Zhen Guo
  • Yangjie Lu

Abstract

Hydraulic properties of sandy soil from the Mu Us sandy land of Shaanxi Province were analyzed by using SEM technology. Soil porosity, the water characteristic curve, and unsaturated hydraulic conductivity of aeolian sandy soil with added soft rock were analyzed, and fractal characteristics were established. Soil hydraulic properties revealed the effect of soft rock application on soil structure and hydraulic properties. Mass ratios of soft rock to aeolian sand were 1:5, 1:2, and 1:1. Results showed that the addition of soft rock can significantly increase the bulk density of sandy soil and reduce the total porosity and macroporosity. The mass fraction of water-stable aggregates greater than 0.25mm increases significantly, increasing the fractal dimension of soil pores; reducing the soil saturated water content and saturated hydraulic conductivity. SEM technology and pore fractal theory were used to predict the soil salinity curve and unsaturated hydraulic conductivity of the improved saline soil.

Suggested Citation

  • Yike Wang & Lei Ge & Shi Chendi & Huanyuan Wang & Jichang Han & Zhen Guo & Yangjie Lu, 2020. "Analysis on hydraulic characteristics of improved sandy soil with soft rock," PLOS ONE, Public Library of Science, vol. 15(1), pages 1-13, January.
  • Handle: RePEc:plo:pone00:0227957
    DOI: 10.1371/journal.pone.0227957
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    Cited by:

    1. Asghari, Shiva & Zeinalzadeh, Kamran & Kheirfam, Hossein & Habibzadeh Azar, Behnam, 2022. "The impact of cyanobacteria inoculation on soil hydraulic properties at the lab-scale experiment," Agricultural Water Management, Elsevier, vol. 272(C).

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