Climate variability, land use changes, and ecosystem management alter the functionality of the Critical Zone, with potential implications for water resources, primary productivity, carbon sequestration, and land-atmosphere interaction. Characterizing the effects of natural and human disturbances necessitates a fundamental understanding of the above- and belowground interactions between hydrological, physical, and biogeochemical processes across spatiotemporal scales and biomes. In this session, we solicit contributions aimed at building a predictive understanding of such interactions under different land-use changes, ecosystem management strategies, and climate forcings. We welcome modeling, experimental, data analysis, and artificial intelligence approaches that investigate fundamental and applied questions ranging from water and nutrient cycles to ecosystem productivity, ecological optimality, climate-soil-vegetation coevolution, plant water and nutrient use efficiencies, root-microbe and mineral-water interactions, and soil carbon sequestration.

• B - Biogeosciences