Iron is a pivotal element in environmental systems, undergoing complex redox reactions that influence global nutrient cycles, carbon sequestration, and pollutant dynamics. Its biogeochemistry ...

Terrestrial biogeochemistry plays a critical role in regulating Earth’s climate, nutrient cycles, and ecosystem health. As environmental change accelerates, the availability of high-quality, ...

1. Introduction -- 2. Origins -- 3. The atmosphere -- 4. The lithosphere -- 5. The biosphere: the carbon cycle of terrestrial ecosystems -- 6. The biosphere: biogeochemical cycling on land -- 7.