Canopy covers from small groups, lines of trees and individual trees are not deducted from BPS areas, although an assessment for trunks and stumps is still required.
Nid fydd canopi grŵp bychan o goed, llinellau o goed neu goed unigol yn cael ei dynnu o arwynebedd y BPS er bod dal angen cynnal asesiad o foncyffion a bonion coed.