“…With age, the time when trees can sustain timber production remains an open question (Sillett, et al, 2015;Tollefson, 2017;Wu, et al, 2016;Ranaivoson, et al, 2017), Biomass is a renewable energy source that can be used as a substitute for fossil fuels for the production of heat energy. Wood biomass is currently the most energy-efficient energy source (Janevski, 2016;Organization, 2002). Using woody biomass as an energy source for social, economic and environmental aspects, it has been found that burning wood particles is beneficial (Nishiguchi and Tabata, 2016;Gołos and Kaliszewski, 2015), thermochemical conversion of biomass is a promising technology because biomass is an environmentally friendly fuel (Eseyin et al, 2015), Wood's lignocellulosic biomass is abundant, natural and renewable materials, and forest residues are the changes in bark ash content of post-harvest and post-harvested wood (including tree tops and bark) compared to wood parts (Abdul Halim and Yong, 2017;Haruna and Hanafiah, 2018).…”