tree saw logs

agriculture bark birch boards branch branches burning chainsaw circle conservation construction countryside cracked cut cutting deforestation ecology environment environmental falling felled firewood forest forestry forrest fuel heat industrial industry job log logger logging logs lumber lumbering lumberjack lumberman mill natural nature occupation outdoors pattern pile pine ring rings saw sawdust sawing sawmill softwood spruce stack stump texture textured timber timbering tree trees trim trimming trunk white wilderness wood woodcut woodcutter wooden woodland woodman woodpile woodworking work worker