Much of this is achieved through a field survey of 300 1km squares across Wales, half of which are focussed on areas prioritised for advanced payments.
Gwneir hyn i raddau helaeth drwy arolwg maes o 300 o sgwariau 1km ledled Cymru, a’u hanner yn canolbwyntio ar ardaloedd sy’n cael blaenoriaeth o ran taliadau uwch.