Carbon-storage capacity of seagrasses at Lang Co Lagoon, Thua Thien Hue province
Vol. 132 No. 1A (2023), Original Article
Vol. 132 No. 1A (2023)

Carbon-storage capacity of seagrasses at Lang Co Lagoon, Thua Thien Hue province

Original Article
https://doi.org/10.26459/hueunijns.v132i1A.6700
Published 2023-03-31
Nguyen Tu Uyen
Centre for Environmental Research and Technology Transfer (CRET), University of Sciences, Hue University, 77 Nguyen Hue St., Hue, Vietnam
Tran Ngoc Khanh Ni
Centre for Environmental Research and Technology Transfer (CRET), University of Sciences, Hue University, 77 Nguyen Hue St., Hue, Vietnam
Ngo Huu Binh
Centre for Environmental Research and Technology Transfer (CRET), University of Sciences, Hue University, 77 Nguyen Hue St., Hue, Vietnam
Nguyen Huu Chi Tu
Centre for Environmental Research and Technology Transfer (CRET), University of Sciences, Hue University, 77 Nguyen Hue St., Hue, Vietnam
Hoang Thi Binh Minh
Mientrung Institute for Scientific Research, Vietnam National Museum of Nature, Vietnam Academy of Science and Technology, Thua Thien Hue, Vietnam
Mai Anh Thu
Centre for Environmental Research and Technology Transfer (CRET), University of Sciences, Hue University, 77 Nguyen Hue St., Hue, Vietnam
Michael Zschiesche
Independent Institute for Environmental Issues (UfU, Berlin), Germany
Hoang Cong Tin*
University of Sciences, Hue University, 77 Nguyen Hue St., Hue, Vietnam
http://orcid.org/0000-0001-5793-8241
pdf (Vietnamese)

Keywords

cỏ biển
công nghệ viễn thám
GIS
hàm lượng cacbon
đầm Lăng Cô carbon stock
Lang Co Lagoon
seagrass
remote sensing

How to Cite

1.
Nguyễn TU, Trần Ngọc KN, Ngô HB, Nguyễn HCT, Hoàng TBM, Mai AT, Zschiesche M, Hoàng CT. Carbon-storage capacity of seagrasses at Lang Co Lagoon, Thua Thien Hue province. hueuni-jns [Internet]. 2023Mar.31 [cited 2024Jul.3];132(1A):123-37. Available from: https://jos.hueuni.edu.vn/index.php/hujos-ns/article/view/6700
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Abstract

Seagrass beds play an essential role in mitigating climate change by absorbing CO2 from the atmosphere and converting carbon into biomass through photosynthesis. We used remote sensing and GIS technology with field survey data to establish the distribution and above-ground dry biomass maps of seagrass beds in 2021. A Landsat 8 OLI satellite image was used in the interpretation process. An above-ground dry biomass map was established by building the regression function between the above-ground dry biomass and the reflectance spectrum of the image bands. The overall accuracy and the Kappa coefficient of the classification process were 95.5% and 0.94. At Lang Co Lagoon, the seagrass bed area in 2021 was about 36.18 ha, distributed primarily in the area between Lang Co Town and the north of the lagoon; and scattered in the north of the lagoon, Hoi Can, Hoi Dua, and Hoi Mit. In addition, the total carbon stock of seagrasses in Lang Co Lagoon was estimated at 5.54 tons, equivalent to 20.32 tons of CO2, in which the contribution of Halodule uninervis accounted for 61% of the total carbon stock.

https://doi.org/10.26459/hueunijns.v132i1A.6700
pdf (Vietnamese)

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