Cobalt content in agricultural soil and its possible driving factors in a certain area

A total of 21 potential driving factors were considered in this study. Among them, P, N, K₂O, OM, and soil pH were determined by laboratory analysis, while land use type, soil type, soil parent material ( SPM), and geologic stratigraphy were obtained from field surveys and related records. Curvature, face width and slope were calculated using Arc GIS Pro. Distances to rivers, towns, railroads, and roads were obtained from the National Geographic Information Catalog service and processed using Arc GIS Pro.