Assessment of Carbon Stock and the Potential Income of the Carbon Offset in Rubber Plantation
Rawee Chiarawipa1*, Surachart Pechkeo2, Montree Keawdoung3 and Wittaya Prommee4
1Department of Plant Science, Faculty of Natural Resources, Prince of Songkla University
2Department of Earth Science, Faculty of Natural Resources, Prince of Songkla University
3Lamtakhong Research Station, Thailand Institute of Scientific and Technological Research
4Chachoengsao Rubber Research Center, Department of Agriculture, Ministry of Agriculture and Cooperatives
Abstract
Rubber plantation is considered to be a large stationary source, where CO2 can be captured from emissions through carbon sequestration. The aim of this study is to estimate the benefits of the carbon offset in rubber plantations over a 25-year period by using biomass allometric equations and soil organic carbon. The trial was arranged for 5 different age levels: 2, 5, 12, 16 and 26-year-old rubber plantations. Results indicated that the overall carbon stock ranged from 50.68 to 193.72 Mg ha-1 which estimated by fitting the polynomial equation between rubber age and carbon stock (r2 = 0.97*). In addition, the estimated potential net income of the contract was US$ 573.39 per ha (3,063.27 Baht rai-1) for the 25-year time period. These results suggest that carbon stock in the rubber plantation is more likely to be a cost-effective mitigation pathway according to voluntary market.
Keywords : biomass, carbon sequestration, voluntary market, carbon credit, Hevea brasiliensis
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