There is no evidence that has collated land use change statistics at sufficient resolution to identify the extent of soil sealing in Wales on different soil types or land uses.
Nid oes tystiolaeth sydd wedi cydosod ystadegau newid defnydd tir i fanylder digonol i adnabod hyd a lled selio pridd yng Nghymru ar fathau gwahanol o bridd neu ddefnyddiau tir.