Estimation of changes in above-ground biomass and carbon stocks of mangrove forests using sentinel-2a in Thai Thuy district, Thai Binh province during 2015 - 2019

Hai-Hoa Nguyen, Nguyen Thi Ngoc Bich, Nguyen Huu Nghia, Tran Thi Ngoc Lan, Thi Thu Hien Nguyen, Hoang Vuong Dang
Author affiliations


  • Hai-Hoa Nguyen Vietnam National University of Forestry, Chuong My District, Ha Noi, Viet Nam
  • Nguyen Thi Ngoc Bich Indian Institute Technology Roorkee, Roorkee 247 667, India
  • Nguyen Huu Nghia Vietnam National University of Forestry, Chuong My District, Ha Noi, Viet Nam
  • Tran Thi Ngoc Lan Vietnam National University of Forestry, Chuong My District, Ha Noi, Viet Nam
  • Thi Thu Hien Nguyen Thuy Loi University, 175 Tay Son, Dong Da, Ha Noi, Viet Nam
  • Hoang Vuong Dang The University of Western Australia, 35 Stirling Highway Perth WA 6009, Australia



Biomass, carbon stocks, mangrove forests, Sentinel 2, Thai Thuy


Mangrove forests are found along shallow shorelines with modest slopes where they receive freshwater runoff and nutrients from rainfall. They have been globally recognised as having a vital function in preventing coastal erosion, mitigating wave actions, and protecting coastal habitats and adjacent shoreline land-uses from extreme coastal events. Using Sentinel-2A, the spatial distribution of mangrove forests was constructed over three years. The accuracy assessment showed that the overall accuracy of the 2019 Sentinel-2A classification was 93.6 % with a Kappa coefficient of 0.90, and the accuracy of the Sentinel-2A in 2015 and 2017 was also more than 90.0 % with a Kappa coefficient of 0.87. There were 2327.9 ha of mangrove forests in 2019; 2007.9 ha in 2017; and 1881.3 ha in 2015. The AGB of mangrove forests in Thai Thuy has increased over time. In 2015, the area of mangrove forests with AGB higher than 7.3 tons ha-1 and AGC more than 3.42 tons ha-1 was estimated at about 877.2 ha, the area of mangrove forests with AGB and AGC greater than 7.3 and 3.42 tons ha-1, respectively, increased to 1067.6 ha in 2017, and there were 1241.1 ha with AGB over 7.3 tons ha-1 and AGC greater than 3.42 ton ha-1 in 2019. There were small variations of AGB and AGC of mangrove forests between field measurements and Sentinel-based estimation in 2019. Therefore, using Sentinel-2A to estimate AGB and AGC of mangrove forests is reliable and applicable to the Thai Binh coast and it needs to be tested in other similar coastal areas in Viet Nam.


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How to Cite

H.-H. Nguyen, N. T. N. . Bich, N. H. Nghia, T. T. N. . Lan, T. T. H. . Nguyen, and H. V. Dang, “Estimation of changes in above-ground biomass and carbon stocks of mangrove forests using sentinel-2a in Thai Thuy district, Thai Binh province during 2015 - 2019”, Vietnam J. Sci. Technol., vol. 60, no. 1, pp. 73–91, Feb. 2022.




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