Data of non-volcanic, polygenic, andic soils in the southern central Ecuadorian highlands as the result of long-lasting pedogenesis and geodynamic processes

With time these soils evolved in to non-allophanic Andisols with hydric properties such as evidenced in profiles from the CAJAS massif located in the western central Cordillera. However soils at the Fierro Urcu massif and at the Oña plateau at the eastern Cordillera formed on a non-volcanic parent material.

Compared to non-allophanic Andisols from the CAJAS massif, they present similar morphological properties with a dark 50 cm thick carbon-rich (80 to 120g kg-1) topsoil with a very low bulk density (< 0.65 g cm-3) and high water retention