Aridity drives the response of soil organic carbon and inorganic carbon to drought in cropland

This global dataset compiles paired measurements of soil organic carbon
(SOC) and soil inorganic carbon (SIC) from cropland soils, with both
components present (non-zero). Each soil profile is geo-referenced and
classified by aridity type (arid, semi-arid, sub-humid, humid) and
irrigation type (rainfed or irrigated). The dataset enables analysis of
SOC–SIC relationships across climatic gradients and under different
management regimes. Data are organized in a tabular format with fields
including depth, SOC, SIC, aridity index, irrigation status, and basic
soil properties. It provides a valuable resource for investigating the
interplay between organic and inorganic carbon in croplands, assessing the
influence of aridity and irrigation on soil carbon dynamics, and improving
global carbon modeling. All records were obtained from open-access or
authorized sources, with no ethical or personal information involved.