The internet-resource Data Centre «Biodiversity of Ukraine» is based on the physical-geographical regional division of Ukraine by the Atlas: General Geographic Atlas of Ukraine / dir. R. Sossa, editor-in chief I. Rudenko /. – Kyiv: Ukrgeodeskartografia & DNVP “Kartografia”. – 2004. – 112 p.
Detailing of the regional division has been reduced to geographical regions, with the exception of Roztotsko-Opilska Upland and the Ukrainian Carpathians, where the detailing is given to geographical districts.