Data from: Global potential to increase soil carbon storage by reducing rotational fallow in semiarid regions

Intensification of cropping systems improves crop productivity and soil
organic carbon (SOC) storage by maintaining or enhancing existing SOC
stocks. We compiled published data on SOC changes in agricultural soils
globally from experiments evaluating the impact of bare-fallow reduction
to determine the change in SOC storage that results from management
change. Soil organic C storage under continuous and
fallow-containing systems for each site was statistically compared. For
the net change in SOC on a per area or on a per area and year basis,
statistical differences among soil types, texture classes, climatic
factors [mean annual precipitation (P), potential evapotranspiration
(PET), and ratio of P/PET], and duration of the management change were
determined.