CARBON STOCK IN DIFFERENT POOLS OF NATURAL FOREST AND PLANTATIONS RAISED IN TFRI, JABALPUR CAMPUS, INDIASangeeta Verma and Avinash JainAbstract Tropical Forest Research Institute (TFRI) is situated 10 km south east of Jabalpur on NH -12A.The campus, spread over an area of 109 ha amidst picturesque surroundings, was surveyed and divided into 34 grids, each of 6" x 6" dimension and 3.21 ha size. Forty two quadrats, each of 0.01 ha size, representing natural forest and all the tree plantations in TFRI campus were laid out. The quadrats for ground flora and litter were also laid out within the tree quadrats. Surface and sub surface soil samples were collected from each quadrat and were analysed in the laboratory for Soil Organic Carbon (SOC) by Walkley Black method. The data on GBH, height and basal diameter of the trees were collected after the rainy season to quantify carbon in trees by non destructive method. Allometric equation y = 0.007 x2 + 1.898x -32.69, where x= GBH (cm), previously developed by TFRI by destructive method, has been used to quantify the above ground biomass. The below ground biomass and carbon were deduced using IPCC guidelines. The Carbon content in the tree biomass, ground flora, litter and necromass, and soil were calculated to be 80.93 tonnes/ha, 0.42 tonnes/ ha, 1.09 tonnes/ha and 32.61 tonnes/ha respectively. The total carbon content in the tree biomass of natural forests was found to be 79.99 tonnes/ha and in plantations 95.14 tonnes/ha.
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