انتشار گاز هاي آلاينده در مورد دو روش برداشت چوب مكانيزه در مقايسه با استفاده از اسب هاي باركش براي الوار كشي

عنوان انگلیسی: Greenhouse gas emissions of two mechanised wood harvesting methods in comparison with the use of draft horses for logging چکیده انگلیسی: Abstract: In this investigation, three different methods for the harvesting of spruce under otherwise identical conditions were analysed with respect to their greenhouse gas emissions per unit of output: a partially mechanised method using motor saws and draft horses, a more highly mechanised method using motor saws and a forestry tractor and a fully mechanised method with a harvester and forwarder. All the sub-steps from the harvesting of the fallen trees to the transportation to the road were included in the investigated greenhouse gas audit, which followed the rules of a streamlined life cycle assessment. The lowest greenhouse gas emissions were