Symbiotic Nitrogen Fixation
Despite Composing 78% of the atmosphere, nitrogen (N) is the most common limiting element to the growth of terrestrial plants. Nitrogen-fixing plants and their symbiotic bacteria have the greatest natural potential to bring new N into the biosphere. Our work on nitrogen-fixing plants focuses on the abundance patterns of N fixers, the environmental regulators of N fixation, and the ecological effects of these N fixers in terrestrial ecosystems.