Compaction of both topsoil and subsoil can seriously damage overall soil structure, restrict root growth and reduce the air and water carrying capacity of the land.
Mae cywasgu’r uwchbridd a’r isbridd yn gallu gwneud difrod mawr i adeiladwaith y pridd, gan effeithio ar dyfiant gwreiddiau a lleihau’r dŵr a’r aer y mae’r pridd yn gallu eu cario.