Andrew S. MacDougall

The paper shows that nutrient enrichment, especially with nitrogen and phosphorus, reduces C4 plant cover in grasslands, disrupting climate-driven C3-C4 balance globally.

This study examines how prairie restoration on agricultural land affects soil microbial communities, finding variable responses across farms and microbial groups.

The paper quantifies a global soil organic carbon sink of 1.83 petagrams per year from 1992 to 2020, driven by extratropical and boreal ecosystems, highlighting the importance of soil conservation for climate mitigation.