My research focuses on how physical, biological and chemical processes interact at fine scales (soil aggregate or pore scale) to alter the flow of carbon and nutrients at larger scales (field or landscape scale). I am especially interested in how global change (land use- and climate change) and extreme weather (droughts, floods) alters the soil microbiome and their role in fundamental biogeochemical processes, such as nutrient and soil carbon cycling in both natural and agro-ecosystems. Microorganisms largely determine the fate of organic carbon in soils, as they are the agents controlling the majority of decomposition processes and organic matter transformations. Equally as important, the soil matrix (i.e. the 3D arrangement of particles and pores), ultimately governs those processes and interactions. As such, research in my lab couples organic matter and microbiome characterization with soil physical properties to better understand how molecular, microbial and moisture properties interact with their physical environment to control the stabilization and destabilization of soil carbon.
- Ph.D. in Soil Science, University of Wisconsin - Madison - (Madison, Wisconsin, United States) 2013
- M.S. in Environmental Science, Yale University - (New Haven, Connecticut, United States) 2008
- B.S. in Wildland Conservation, University of Washington - (Seattle, Washington, United States) 2004
- Pressler, Y., Zhou, J., He, Z., Van Nostrand, J. D., & Smith, A. P. (2020). Post-agricultural tropical forest regeneration shifts soil microbial functional potential for carbon and nutrient cycling. Soil Biology and Biochemistry. 145, 107784-107784.
- Yan, Z., Wang, T., Wang, L., Yang, X., Smith, P., Hilpert, M., ... Liu, C. (2018). Microscale water distribution and its effects on organic carbon decomposition in unsaturated soils. Science of The Total Environment. 644, 1036-1043.
- Smith, A. P., Bond-Lamberty, B., Benscoter, B. W., Tfaily, M. M., Hinkle, C. R., Liu, C., & Bailey, V. L. (2017). Shifts in pore connectivity from precipitation versus groundwater rewetting increases soil carbon loss after drought. Nature Communications. 8(1), 1335.
- Dohnalkova, A. C., Tfaily, M. M., Smith, A. P., Chu, R. K., Crump, A. R., Brislawn, C. J., ... Keller, C. K. (2017). Molecular and Microscopic Insights into the Formation of Soil Organic Matter in a Red Pine Rhizosphere. Soils. 1(1), 4-4.
- Bailey, V. L., Smith, A. P., Tfaily, M., Fansler, S. J., & Bond-Lamberty, B. (2017). Differences in soluble organic carbon chemistry in pore waters sampled from different pore size domains. Soil Biology and Biochemistry. 107, 133-143.