Xiao-Jun (Allen) Liu

Xiao-Jun (Allen) Liu
Northern Arizona University
Google Scholar page


B.S. in Agronomy, Henan Institute of Science and Technology, Xinxiang, China (2005)

M.S. in Soil Science, Northwest A&F University, Yangling, China (2008)

M.S. in Crop and Soil Environmental Sciences, Virginia Tech, Blacksburg (2012)

Research Focus

Xiaojun’s main research interests include soil microbial ecology, biogeochemistry (carbon and nitrogen cycling) and global climate change. Currently he is working on soil microbial diversity and it affect C cycling in response to substrate (sugar, plant litter or other organic materials) inputs. Also he is looking at what types of genes are encoding C degrading enzymes and controlling soil organic matter decomposition.

Other Achievements, Honors, Awards

He won the1st Place for presentation at the Graduate Student Research Symposium at Virginia Tech in 2012, and two graduate travel funds for attending the ―ASA, CSSA, and SSSA International Annual Meetings.

Member of professional societies: Ecological Society of America (since 2013) and Soil Science Society of America (since 2010).

Big-picture Career Goal

Develop abilities of independent thinking, through. My career goal is to grow and become a professor or researcher through graduate school training, designing and conducting of creative work in the field of environmental biology, and help create knowledge that fight against climate change and preserve our environment. 

Personal Note

Xiaojun likes playing pingpong, badmington and basketball, dance, and travel.  

Selected Publications

Liu, X.-J. A., Fike, J. H., Galbraith, J. M., Fike, W. B., Parrish, D. J., Evanylo, G. K. and Strahm, B. D. (2013). Effects of harvest frequency and biosolids application on switchgrass yield, feedstock quality, and theoretical ethanol yield (PDF). GCB Bioenergy. doi: 10.1111/gcbb.12124

Zhou J.B., Chen J.Z., Liu X.J., Zhai B.N., Powlson D.S. (2010). Nitrate accumulation in soil profiles under seasonally open ’sunlight greenhouses’ in northwest China and potential for leaching loss during summer fallow (PDF). Soil Use and Management. 26: 332-339

Current Projects

Biological and mineralogical controls over soil carbon cycling across multiple ecosystems: a focus on the priming effect 

Personal Websites



Full Curriculum Vitae