Figure 1

Variation in soil parameters between sulfur amended (SSA) and untouched soil (SU) over 12 weeks. (A) Average efflux rates of CO2 from both soils over time (Methods, Supplementary Tables 1 and 2 and Supplementary Information section 1). Positive values indicate CO2 efflux from the soil surface into the chamber atmosphere. (B) Sulfur concentration in both soils, (C) sulfate concentration in both soils, (D) average δ13C values (‰) of microbial PLFAs (average StDev ≤ 1.00‰) in both soils (Supplementary Information Table 3) and (E) RubisCO gene copy (cbbL) concentrations for both soils.