s 159 Planning permission to include appropriate provision for preservation and planting of trees.
It shall be the duty ...— (a) of the Scottish Ministers and the planning authority to ensure, whenever it is appropriate, that in granting planning permission for any development adequate provision is made, by the imposition of conditions, for the preservation or planting of trees, and (b) of the planning authority to make such orders under section 160 as appear to the authority to be necessary in connection with the grant of such permission, whether for giving effect to such conditions or otherwise , and (c) of the planning authority from time to time to review any order made in exercise of their powers under that section and to consider whether it is requisite to vary or revoke the order in question.