Forestry Sciences Gunungkidul Tectona grandis fiber dimension physical properties Forestry Incubation period Lama inkubasi Phanerochaete chrysosporium SiC/SiO2/C composite basic density biopulping carbonized wood community forest mechanical properties microstructure terentang ETD Fast growing red meranti Oil palm shell charcoal Raman spectroscopy SAXS SiC rod Sukun Tectona grandis; bread fruit tree burying time carbonization cell proportion conventional teak density fast-growing trees fire retardancy properties; fire retardant material; sengon fresh moisture content functional materials gelam wood growth rate growth-stressreleased strain; Gunungkidul; wood properties heat treatment increment jati unggul nusantara kayu gelam kearifan lokal lama penimbunan local wisdom peatswamp physical propertis physical–mechanical properties plantation spacing pore size distribution