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Faculty
Junjun NI (倪鈞鈞) PhD , HKUST

Visiting Assistant Professor

Email: cenijj@ust.hk
Homepage: https://www.seng.ust.hk/web/eng/people_detail.php?id=414&cur2=department
RESEARCH INTERESTS:
  • Soil bioengineering using vegetation and biochar
  • Hydro- mechanical effects of vegetation on the slope stability
  • Reuse of sustainable materials (recycled concrete, etc.) in geotechnical infrastructures
SELECTED PUBLICATIONS:
  • Ng, C. W. W., Ni, J. J.*, Leung, A. K., Zhou, C. and Wang, Z. J. (2016). Effects of planting density on tree growth and induced soil suction. Géotechnique, 66(9), 711–724.
  • Ni, J. J., Leung, A. K. and Ng, C. W. W. (2018). Unsaturated hydraulic properties of vegetated soil under single and mixed planting conditions. Géotechnique. https://doi.org/ 10.1680/jgeot.17.T.044.
  • Ng, C. W. W., Wang, Z. J., Leung, A. K. and Ni J. J. (2018). Effects of leaf and root characteristics on the stability of plant root water uptake. Géotechnique. https://doi.org/10.1680/jgeot.16.P.332.
  • Ni, J. J., Leung, A. K. and Ng, C. W. W. (2017). Investigation of plant growth and transpiration-induced suction under mixed grass-tree conditions. Canadian Geotechnical Journal, 54(4), 561 – 573.
  • Ni, J. J., Leung, A. K. and Ng, C. W. W. (2018). Modelling effects of root growth and decay on soil water retention and permeability. Canadian Geotechnical Journal, https://doi.org/ 10.1139/cgj-2018-0402.
  • Shao, W., Ni, J. J.*, Leung, A. K., Su, Y. and Ng, C. W. W. (2017). Analysis of plant root-induced preferential flow and pore water variation by a dual-permeability model. Canadian Geotechnical Journal. 54(11), 1537-1552.
  • Ng, C. W. W., Chen, R., Coo, J., Liu, J., Ni, J. J., Chen., Y. M., Zhan, L. T., Guo, H. W. and Lu, B. W. (2018). A novel vegetated three-layer landfill cover system using recycled construction wastes without geomembrane. Canadian Geotechnical Journal https://doi.org/10.1139/cgj-2017-0728.
  • Ni, J. J., Leung, A. K., Ng, C. W. W. and Shao, W. (2018). Modelling hydro-mechanical reinforcement of vegetation to slope stability. Computers and Geotechnics, 95, 99-109.
  • Ng, C. W. W., Ni, J. J., Leung, A. K. and Wang, Z. J. (2016). A new and simple water retention model for root-permeated soils. Géotechnique Letters, 6(1), 106 – 111.
  • Ni, J. J., Chen, X. W., Ng, C. W. W. and Guo, H. W. (2018). Effects of biochar on water retention and matric suction of vegetated soil. Géotechnique Letters, 8, 124-129.
  • Garg, A., Bordoloi, S., Ni, J. J.*, Cai, W. L., Maddibiona, P. G., Mei, G. X. and Poulsen, T. G. (2019). Influence of biochar addition on gas permeability in unsaturated soil. Geotechnique Letters. 9(1), 1-6.
  • Shao, W., Yang, Z. J., Ni, J. J. and Su, Y. (2018). Comparison of single- and dual-permeability models in simulating the unsaturated hydro-mechanical behaviour in a rainfall-triggered landslide. Landslides, 15(12), 2449-2464.
  • Ni, J. J., Bordoloi, S., Garg, A., Shao Wei and Sreedeep, S. (2019). Simple model on water retention and permeability in soil mixed with lignocellulose fibres. KSCE Journal of Civil Engineering, 23(1), 138-146.
  • Ni, J. J., Leung, A. K. and Ng, C. W. W. (2018). Modelling soil suction changes due to mixed species planting. Ecological Engineering, 117, 1-17.
  • Ni, J. J., Leung, A. K. and Ng, C. W. W. (2019). Influences of plant spacing on root tensile strength of Schefflera arboricola and soil shear strength. Landscape and Ecological Engineering, DOI: 10.1007/s11355-019-00374-x.
  • Ni, J. J., Cheng, Y. F., Wang, Q. H., Ng, C. W. W. and Garg, A. (2019). Effects of vegetation on soil temperature and water content: Field monitoring and numerical modelling. Journal of Hydrology, 571, 494-502.
  • Ni, J. J., C. and W. W. Ng. (2019). Long-term effects of grass roots on gas permeability in unsaturated simulated landfill coves. Total Science of the Environment, 666, 680-684.
  • Ni, J. J., Wang, Q. H., Cheng, Y. F., Garg., A., Peng, X. B., Ng, C. W. W. (2019). Investigating plant root effects on soil electrical conductivity: An integrated field monitoring and statistical modelling approach. Earth Surface Processes and Landforms, 44(3), 825-839.
  • Ng, C. W. W., B. W. Lu, J. J. Ni.*, Y. M. Chen, R. Chen, and H. W. Guo. (2019). Effects of vegetation types on infiltration rate in three-layer landfill cover with recycled concrete. The Journal of Zhejiang University-Science A, 20(1), 1-9.
  • Buragohain, P., Sreedeep, S., Lin, P., Ni, J. J.* and Garg, A. (2019). Influence of soil variability on single and competitive interaction of ammonium and potassium: experimental study on seven different soils. Journal of Soils and Sediments, 19(1), 186-197.
  • Garg, A., Mondal, S. Bordoloi, S., Ni, J. J.* and Sreedeep, S. (2018). Investigation of mechanical factor of soil reinforced with four types of fibers: an integrated experimental and extreme learning machine approach. Journal of Natural Fibers. https://doi.org/10.1080/15440478.2018.1521763.
 
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