Aim of study: This study was carried out to determine the carbon concentration tree components (needles, wood, bark, root) and weighted concentrations above-ground total mass. Area Current in natural Pinus brutia forests Marmara Transition Zone, southern side Sakarya river. Material methods: The samplings were made 10 stands mature stage (dbh = 20.0-51.9 cm) that different terms habitat charact...