Dr Liana Johnson

Biographical details

Liana is an Associate Lecturer and researcher within the School of Life and Environmental Sciences. Her research interests include soil contaminant detection and mapping, spectral analysis, modelling and statistical analysis.

Liana graduated from BSc(Environmental Biology; Hons) in 2013, with her Honours project seeking to understand phytoplankton dynamics using satellite imagery off the coast of South-East Australia. After completion of this degree, she commenced her PhD at the University of Sydney. Her PhD focussed on seeking to improve delineation of heavy metals in soil by addressing issues in sampling, detection using spectroscopy, mapping of contaminant distributions using linear mixed modelling and monitoring of contaminants using bivariate linear mixed models.

Throughout her PhD she has been a demonstrator for first year statistics (ENVX1002) and since 2017, a demonstrator for Earth, Environment and Society. (GEOS1001). As a result of this work she was given the opportunity to develop an Online Learning Environment named "Shark Bites and Other Data Stories" (OLEO1631), which is a basic statistics course open to all staff and students accross the University. As a learning tool for this subject, she also developed an RShiny application to assist with selection of statistical visualisations in R.

Associations

Liana is a member of the Sydney Institute of Agriculture, the Soil Science Society of Australia and the International Union of Soil Sciences.

In the media

Make your garden thrive: tips for healthier soil

Working as part of the University of Sydney team, awarded second prize against other teams of researchers in the AgData Challenge hackathon.

Selected publications

Download citations: PDF RTF Endnote

Journals

  • Pozza, L., Bishop, T. (2019). A meta-analysis of published semivariograms to determine sample size requirements for assessment of heavy metal concentrations at contaminated sites. Soil Research. [More Information]
  • Filippi, P., Jones, E., Wimalathunge, N., Somarathna, P., Pozza, L., Ugbaje, S., Jephcott, T., Paterson, S., Whelan, B., Bishop, T. (2019). An approach to forecast grain crop yield using multi-layered, multi-farm data sets and machine learning. Precision Agriculture, In Press, 1-15. [More Information]
  • Johnson, L., Bishop, T., Birch, G. (2019). Using bivariate linear mixed models to monitor the change in spatial distribution of heavy metals at the site of a historic landfill. Environmental Monitoring and Assessment, 191, 1-18. [More Information]
  • Johnson, L., Bishop, T., Birch, G. (2017). Modelling drivers and distribution of lead and zinc concentrations in soils of an urban catchment (Sydney estuary, Australia). Science of the Total Environment, 598, 168-178. [More Information]
  • Horta, A., Malone, B., Stockmann, U., Minasny, B., Bishop, T., McBratney, A., Pallasser, R., Pozza, L. (2016). Reply to "Comment on "Potential of integrated field spectroscopy and spatial analysis for enhanced assessment of soil contamination: A prospective review" by Horta et al". Geoderma, 271, 256-257. [More Information]
  • Horta, A., Malone, B., Stockmann, U., Minasny, B., Bishop, T., McBratney, A., Pallasser, R., Pozza, L. (2015). Potential of integrated field spectroscopy and spatial analysis for enhanced assessment of soil contamination: A prospective review. Geoderma, 241-242, 180-209. [More Information]

2019

  • Pozza, L., Bishop, T. (2019). A meta-analysis of published semivariograms to determine sample size requirements for assessment of heavy metal concentrations at contaminated sites. Soil Research. [More Information]
  • Filippi, P., Jones, E., Wimalathunge, N., Somarathna, P., Pozza, L., Ugbaje, S., Jephcott, T., Paterson, S., Whelan, B., Bishop, T. (2019). An approach to forecast grain crop yield using multi-layered, multi-farm data sets and machine learning. Precision Agriculture, In Press, 1-15. [More Information]
  • Johnson, L., Bishop, T., Birch, G. (2019). Using bivariate linear mixed models to monitor the change in spatial distribution of heavy metals at the site of a historic landfill. Environmental Monitoring and Assessment, 191, 1-18. [More Information]

2017

  • Johnson, L., Bishop, T., Birch, G. (2017). Modelling drivers and distribution of lead and zinc concentrations in soils of an urban catchment (Sydney estuary, Australia). Science of the Total Environment, 598, 168-178. [More Information]

2016

  • Horta, A., Malone, B., Stockmann, U., Minasny, B., Bishop, T., McBratney, A., Pallasser, R., Pozza, L. (2016). Reply to "Comment on "Potential of integrated field spectroscopy and spatial analysis for enhanced assessment of soil contamination: A prospective review" by Horta et al". Geoderma, 271, 256-257. [More Information]

2015

  • Horta, A., Malone, B., Stockmann, U., Minasny, B., Bishop, T., McBratney, A., Pallasser, R., Pozza, L. (2015). Potential of integrated field spectroscopy and spatial analysis for enhanced assessment of soil contamination: A prospective review. Geoderma, 241-242, 180-209. [More Information]

To update your profile click here. For support on your academic profile contact .