The influence of elevated CO2 and soil depth on rhizosphere activity and nutrient availability in a mature Eucalyptus woodland
Elevated carbon dioxide (eCO2) in the atmosphere increases forest biomass productivity but only where soil nutrients, particularly nitrogen (N) and phosphorus (P), are not limiting growth.eCO2, in turn, can impact rhizosphere nutrient availability.Our current understanding of nutrient cycling under eCO2 is mainly derived from surface soil, leaving