Challenges of the Soil System
Measuring genes and gases in heterogenous soil systems. Soil is a complex and heterogeneous matrix of inorganic and organic compounds arranged in particles, aggregates, and pores spanning wide spatial scales (i.e., nm to cm). The extent to which soil heterogeneity and complexity shapes micro-scale microbial community assembly and function is not well known, and is not typically captured by measurement systems. These challenges limit our ability to “scale up” soil genomics to ecosystem function. Our work focuses on improving in situ trace gas monitoring capabilities and evaluating scaling assumptions.
Current Projects
Spatially-Resolved Microbial Activity Probe for Trace Gas Isotopes in Soil
Experimental Evaluation of Soil Scaling Assumptions
Recent Highlights
N2O-rich B2 Rainforest soils Juliana engineering prototype at LEO Team photo @ Aerodyne
Key Collaborators
Till H. M. Volkmann, Biosphere 2
Rob Roscioli and Joanne Shorter, Aerodyne Research, Inc.

Department of Energy Biological and Environmental Research
University of Arizona Research, Discovery, and Innovation