Integrated Controls on Fluxes
Trace gas cycling is the result of multiple, interacting abiotic and biotic processes in complex ecosystems. We seek to build process-based understanding of the drivers of biosphere-atmosphere trace gas exchange, including microbial activity.
Current Projects
Urban Rainwater Harvesting. Impacts on Soil Microbial Communities and Function Including Gas Fluxes. Urban soils are often degraded compared to their natural counterparts, and in this study we ask how microbial community composition and function are altered upon green infrastructure (GI) installation. The GI systems we stuyd passively and actively utilize rainwater captured from roof run-off during the monsoon and winter storms, and grey water systems are fed annually by laundry water. As water is the limiting factor in arid environments, we anticipate that these treatments will dramatically re-shape microbial communities and lead to altered biogeochemical cycling.
Drivers of Ecosystem Fluxes of Trace Gases
Key Papers
Seasonality increases N2O emissions and denitrification gene abundance through soil and plant residue characteristics in citrus and eucalyptus plantations (Paper forthcoming)
Ecosystem fluxes of hydrogen in a mid-latitude forest driven by soil microbes and plants. Document online.
Seasonal fluxes of carbonyl sulfide in a mid-latitude forest Document online.
Recent Highlights
RISE Symposium 2018
Key Collaborators
Acacio Aparecido Navarrete and Caroline Sayuri Nishisaka, Federal University of São Carlos
Róisín Commane, Columbia LDEO