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The diversity of plant in some land uses at East Luwu Regency has potential to absorb and store carbon, which varies due to the plant different constituent. The differences of carbon stored of each land cover need to calculate in order to find the amount of carbon stock available. This study aims to estimate carbon stocks in the land cover of secondary forest, agroforestry, oil palm plantation and rice fields. The research use sample plot size 20 × 50 that taken 9 times for each land cover. Biomass data was collected using non-destructive sampling, since for undergrowth and necromass using destructive sampling by cutting and taking all the undergrowth and litter that are in a 1 × 1 meter quadrant. There are two kinds of soil sampling that collected; disturbed soil and intact soil. The results showed that the highest estimated carbon stock is secondary forest with carbon stock value of 265.86 tons / ha, as for agroforestry the carbon stock value of 131.31 tons / ha, while oil palm with a carbon stock value of 100.89 tons / ha and the lowest is paddy fields with carbon stock value of 70.50 tons / ha.

Carbon stock estimation on some land cover: secondary forest, agroforestry, palm oil plantation and paddy fields