Effects of Atmospheric CO₂ Enrichment on Soil CO₂ Efflux in a Young Longleaf Pine System

Figure 2

Response of soil CO₂ efflux (μmol CO₂ m⁻² s⁻¹) to soil temperature for ambient (365 μmol CO₂ mol⁻¹) and elevated (720 μmol CO₂ mol⁻¹) CO₂ plots in a model regenerating longleaf pine-wiregrass ecosystem. Equations describing each line, with fit statistics, are provided above (elevated) and below (ambient) the lines.