Biomass Carbon Stocks of Economic Trees at Sakon Nakhon Rajabhat University
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Abstract
This study aimed to investigate species diversity, biomass estimation, carbon storage, carbon sequestration, and oxygen production of economic trees at Sakon Nakhon Rajabhat University. All trees were identified, and their diameter at breast height and total height were measured. The biomass was calculated using allometric equations. Carbon stock was subsequently estimated from the biomass, while the carbon sequestration was determined by multiplying the carbon stock by a conversion factor of 3.67. Oxygen production by the trees was also evaluated. The results revealed a total of 2,115 trees, comprising 23 species from 12 families within the study area. The most common species were Cassia fistula L., Tamarindus indica L., Lagerstroemia speciosa (L.) Pers., Dipterocarpus alatus Roxb. ex G.Don and Mangifera indica L., accounting for 22.08%, 10.21%, 8.56%, 7.38%, and 7.09% of the total, respectively. The total biomass was estimated at 1,765,830.68 kg, with an average of 834.91 Kg per tree. The total carbon stock was 829,940.35 KgC, averaging 392.41 KgC per tree. Total carbon sequestration was 3,037,581.94 KgCO2 , with an average of 1,436.21 KgCO2 per tree. In addition, the total oxygen production was estimated at 4,427,394.96 KgO2, with an average of 2,093.33 KgO2 per tree. The plant species with the highest capacities for carbon storage, carbon sequestration, and oxygen production were identified as Samanea saman (Jacq.) Merr.), Tamarindus indica L., Tectona grandis Linn.f., Dipterocarpus alatus Roxb. ex G.Don, and Alstonia scholaris (L.) R. Br., respectively.
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