any natural or constructed barrier utilised to segregate, stop and control the spread of fire or to provide a control line from which to work, a temporary, cleared (often burnt), narrow strip from which to counterfire or do controlled burning, any natural or man-made stoppage or discontinuity in a fuel area that can help to control or stop the spread of fire, area where no trees are planted, so that a forest fire cannot pass across and spread to other parts of the forest, piki metsamassiivi kulgeva tee, metsasihi või -kraavi mõlemat serva ettenähtud laiusega kulgev lehtpuuenamusega segametsa- või sellekohaselt hooldatud okasmetsa riba ladvatule tõkestamiseks {keskkonn