Birhanu's current research addresses broader biogeochemistry, with a focus on enhanced rock weathering (ERW) as a novel strategy for removing carbon dioxide, increasing carbon sequestration, improving soil health, and advancing climate-smart agriculture. This research project is conducted over a wide range of climate, soil type, and farming systems across multiple locations in Australia.
He also explored the interaction effects of lime and organic amendments on coupled soil acidity neutralisation and carbon dynamics, using state-of-the-art stable carbon isotope tracing to elucidate the underlying biogeochemical mechanisms. He developed methods for measuring the alkalinity of organic materials.
His research combines laboratory, greenhouse, and field trial studies with conventional methods, advanced isotope tracing and geochemical modelling to deliver solutions to agricultural challenges and climate change.
 
For collaboration, I can be reached at birhanuiticha.ayanssa@adelaide.edu.au.