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Comparative Study of Carbon Sequestration in Rhizophora mucronate, Xylocarpus granatum Koenig, and Avicennia officinalis L., and Analysis of Physical Factors in the Mangrove Forest of Banbawee district, Hat Samran District, Trang Province,Thailand.
Organization(s):Wichienmatu
Country:Thailand
Student(s):Mr. Pornsawan Chaiphak
Ms. Wanassanan Chaikerd
Ms. Poonyisa Jitaree
Grade Level:Secondary School (grades 9-12, ages 14-18)
GLOBE Member(s):Kwanjai Karnchanasrimek
Contributors:Mrs. Orapin Noonum
Mrs. Sawitree Duangsook
Report Type(s):Virtual Science Symposium Report
Protocols:Carbon Cycle, Air Temperature, Relative Humidity, Soil pH, Soil Temperature
Presentation Poster:
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Language(s):English
Date Submitted:2026-01-29
A Comparison of Carbon Sequestration in Rhizophora mucronate, Xylocarpus granatum Koenig , and Avicennia officinalis L., and a Study of Physical Factors in the Mangrove Forest of Ba Wi Sub-district, Hat Samran District, Trang Province. This research aimed to : 1) compare the carbon sequestration capacities of Rhizophora mucronate, Xylocarpus granatum Koenig , and Avicennia officinalis L.. The results revealed that the carbon sequestration amounts, ranked from highest to lowest, were: Avicennia officinalis L. (568.67 kgC), Xylocarpus granatum Koenig (249.66 kgC), and Rhizophora mucronate (236.48 kgC). It was observed that carbon sequestration capacity is primarily dependent on the growth rate of the trees. 2) Study the physical environmental factors in the areas inhabited by these three species using GLOBE protocols. The findings showed that the average soil temperatures were 25°C for R. mucronate, 25.3°C for Xylocarpus granatum Koenig , and 26.3°C for Avicennia officinalis L. Average soil pH levels were 7.2, 6.7, and 7.3, respectively. The average soil moisture for all three species was consistent at 100%. Regarding atmospheric conditions, the average air humidity was 69% for R. mucronate, 58.7% for Xylocarpus granatum Koenig , and 52% for Avicennia officinalis L. Average air temperatures were 28.5°C, 29.5°C, and 31°C, respectively. The average light intensity was 164.3 Lux for R. mucronate, 300 Lux for Xylocarpus granatum Koenig , and 116.7 Lux for Avicennia officinalis L. In conclusion, physical factors differently influence the growth of each mangrove species, which subsequently results in varying carbon sequestration capacities. These findings are consistent with the research by Kanokwan Ngamsom regarding mangrove ecosystems in Thailand.