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Article

Conceptual Model of Ecosystem Service Flows from Carbon Dioxide to Blue Carbon in Coastal Wetlands: An Empirical Study Based on Yancheng, China

Research Institute of Huai River Eco-Economic Belt, School of Urban and Environmental Sciences, Huaiyin Normal University, Huai’an 223300, China
Academic Editor: Sung-Min Cha
Sustainability 2021, 13(9), 4630; https://doi.org/10.3390/su13094630
Received: 10 March 2021 / Revised: 17 April 2021 / Accepted: 20 April 2021 / Published: 21 April 2021
Large amounts of blue carbon exist in the ecosystems of coastal wetlands. Accurate calculations of the stocks and economic value of blue carbon in various plant communities can facilitate vegetation rehabilitation. Based on this objective, first, a blue carbon estimation model was constructed by combining a Carnegie-Ames-Stanford Approach (CASA) model, and second, the distribution pattern of blue carbon and flow direction of ecosystem services (carbon sequestration) in a coastal wetland in China was analyzed utilizing a combination of field surveys, remote sensing data, and laboratory analysis techniques. Finally, the wetland carbon sequestration value and its income-expenditure status were measured using the carbon tax method. The results show that the aboveground net primary productivity of coastal wetland vegetation exhibits a non-zonal distribution in the south-north direction, whereas it presented a three-level gradient distribution, characterized as “low (200–300 g/m2∙y)–intermediate (300–400 g/m2∙y)–high (400–500 g/m2∙y)”, in the east-west direction. The accumulation of carbon gradually increased from the ground surface to the underground (litter < underground roots < soil) in Spartina alterniflora and Phragmites australis. On the type scale, Spartina alterniflora and Phragmites australis wetlands were of the “blue carbon” net outflow type (supply type), with mean annual outflow carbon sequestration values of 3272.3 $/ha and 40.9 $/ha, respectively. The Suaeda glauca wetland was of the “blue carbon” net inflow type (benefit type), with a mean annual inflow carbon sequestration value of 190.7 $/ha. View Full-Text
Keywords: ecosystem services flow; blue carbon; carbon sequestration value; coastal wetland ecosystem services flow; blue carbon; carbon sequestration value; coastal wetland
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MDPI and ACS Style

Zang, Z. Conceptual Model of Ecosystem Service Flows from Carbon Dioxide to Blue Carbon in Coastal Wetlands: An Empirical Study Based on Yancheng, China. Sustainability 2021, 13, 4630. https://doi.org/10.3390/su13094630

AMA Style

Zang Z. Conceptual Model of Ecosystem Service Flows from Carbon Dioxide to Blue Carbon in Coastal Wetlands: An Empirical Study Based on Yancheng, China. Sustainability. 2021; 13(9):4630. https://doi.org/10.3390/su13094630

Chicago/Turabian Style

Zang, Zheng. 2021. "Conceptual Model of Ecosystem Service Flows from Carbon Dioxide to Blue Carbon in Coastal Wetlands: An Empirical Study Based on Yancheng, China" Sustainability 13, no. 9: 4630. https://doi.org/10.3390/su13094630

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