Soil mapping and its interpretation will be better if there are some correlation between them, these will assist in mapping soils using satellite images to classify land covers then soils types.
Of course. I know of a few. You may overlay a global land cover with a global soil product and find a few in your area of interest. I am looking forward to your findings. Mosaics may have to be considered.
Sure! There are correlations. You will find interesting results with Satellite imageries. This however depends on the vegetation in your area of study.