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http://dx.doi.org/10.5322/JESI.2022.31.9.767

Calculation of Blue Carbon Stock and Analysis of Influencing Factors in Bare Tidal Flats  

Park, Kyeong-deok (Institute of Environmental Geosciences, Pukyong National University)
Kang, Dong-hwan (Institute of Environmental Geosciences, Pukyong National University)
Jo, Won Gi (Institute of Environmental Geosciences, Pukyong National University)
So, Yoon Hwan (Institute of Environmental Geosciences, Pukyong National University)
Kim, Byung-Woo (K-water Institute, Korea Water Resources Corporation)
Publication Information
Journal of Environmental Science International / v.31, no.9, 2022 , pp. 767-779 More about this Journal
Abstract
In this study, sediment cores were sampled from tidal flats (six sites) in the west and south coastal wetlands, the blue carbon stock in the tidal flat sediments was calculated, and the blue carbon stock characteristics and influencing factors were analyzed. The sediment particle size of the west coastal tidal flats was larger than that of the south coastal tidal flats, and the organic carbon content in the south coastal tidal flats was more than twice that of the west coastal tidal flats. Blue carbon stock per unit area was 28.4~36.8 Mg/ha on the west coastal tidal flats and 69.8~89.8 Mg/ha on the south coastal tidal flats, which was more than twice higher in the south coastal tidal flats than in the west coastal tidal flats. The total amount of blue carbon stock in the tidal flats was the highest in Suncheon Bay tidal flats at 153,626 Mg, and followed by Gomso Bay tidal flats at 141,750 Mg, Hampyeong Bay tidal flats at 58,420 Mg, Dongdae Bay tidal flats at 44,900 Mg, Cheonsu Bay tidal flats at 36,880 Mg, and Jinhae Bay tidal flats at 26,205 Mg. Blue carbon stock per unit area was higher in the south coastal tidal flats, but the total amount of blue carbon stock in the tidal flats was higher in the west coast. The slope of the regression function of blue carbon stock with respect to the organic carbon content in the tidal flat sediments was estimated to be about 0.05 to 0.07, and the slope of the regression function was higher in the west coastal tidal flats than in the south coastal tidal flats.
Keywords
Bare tidal flats; Blue carbon; Organic carbon; Dry bulk density; Sediment particle size;
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