Vol. 11, Issue 4 (2022)

Author(s):
MP Divya, I Arul Gnana Mathuram, S Manivasakan, R Ravi, K Baranidharan, S Selvanayaki and M Packialakshmi

Abstract:
The carbon content in above ground biomass components viz., stem, branch and leaf and below ground biomass viz., root of eucalyptus trees of 1 to 5 year old plantations was estimated. The data revealed that the per cent carbon content of stem, branch, leaf and root increased with an increase of age of plantations. Analogous to this, the total biomass carbon content also increased due to the age of trees. The studies on soil organic carbon showed that the soil organic carbon per cent of eucalyptus plantations increased over the ages. Among the two distances (from the tree base), significantly higher per cent soil organic carbon was recorded at closer distance (0.50 m) than at wider distance (1.0 m) at all the five ages of plantations. The surface layer recorded higher organic carbon when compared to sub surface layer at all the ages of plantation. The total soil organic carbon content also followed the same trend as that of soil organic carbon and significant difference was observed due to age, distance and soil depth. The calculated and estimated total carbon (i.e. soil organic carbon and calculated total biomass carbon) was found to be increased due to ages of the plantations.