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Distribution Characteristics and Main Influencing Factors of Organic Carbon in Sediments of Spartina Alterniflora Wetlands along the Northern Jiangsu Coast, China

Author

Listed:
  • Aijuan Zhang

    (School of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, China)

  • Wenlong Lv

    (School of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, China)

  • Qiang Shu

    (School of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, China
    Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing 210023, China
    School of Geography, Nanjing Normal University, Nanjing 210023, China)

  • Zhiling Chen

    (School of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, China)

  • Yifan Du

    (School of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, China)

  • Hui Ye

    (School of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, China)

  • Linlu Xu

    (School of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, China)

  • Shengzhi Liu

    (School of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, China)

Abstract

In this study, columnar sediment samples were collected from north to south along the northern Jiangsu coast, China, under Spartina alterniflora vegetation in four sample areas: Chuandong Port (Area-1), Tiaozini Scenic Area (Area-2), Yangkou Town (Area-3), and Meiledi Marine Park (Area-4). Organic carbon (OC), nutrient elements including total nitrogen (TN), total phosphorus (TP), and total sulfur (TS), and physicochemical properties including pH, salinity (Sal), moisture content (MC), and bulk density (BD) were measured. Pearson’s correlation analysis was performed to explore the correlation between OC content and sedimentary physicochemical indexes, and the partial least squares regression (PLSR) model was used to analyze the factors affecting changes in OC content. The results found that the OC content of columnar sediments of S. alterniflora decreased with increasing depth in all four areas. The OC content in the four sample areas was mainly affected by the TN, pH, MC, TP, and burial depth. In particular, TN, MC, TP, TS, and clay content positively affected OC, whereas burial depth, pH, silt content, BD, sand content, and Sal negatively affected OC. The results of this study provide a valuable reference for evaluating the role of coastal wetlands in the global carbon cycle.

Suggested Citation

  • Aijuan Zhang & Wenlong Lv & Qiang Shu & Zhiling Chen & Yifan Du & Hui Ye & Linlu Xu & Shengzhi Liu, 2024. "Distribution Characteristics and Main Influencing Factors of Organic Carbon in Sediments of Spartina Alterniflora Wetlands along the Northern Jiangsu Coast, China," Land, MDPI, vol. 13(6), pages 1-16, May.
    • Handle: RePEc:gam:jlands:v:13:y:2024:i:6:p:741-:d:1401724
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    References listed on IDEAS

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    1. Jiashuo Liu & Xiaoxiao Duan & Guo Li & Zhenjie Cai & Sijie Wei & Qixuan Song & Zheng Zheng, 2023. "Changes in Bacterial Communities and Their Effects on Soil Carbon Storage in Spartina alterniflora Invasion Areas, Coastal Wetland Bare Flats, and Sueada salsa Areas," IJERPH, MDPI, vol. 20(5), pages 1-12, February.
    2. Mark Schuerch & Tom Spencer & Stijn Temmerman & Matthew L. Kirwan & Claudia Wolff & Daniel Lincke & Chris J. McOwen & Mark D. Pickering & Ruth Reef & Athanasios T. Vafeidis & Jochen Hinkel & Robert J., 2018. "Future response of global coastal wetlands to sea-level rise," Nature, Nature, vol. 561(7722), pages 231-234, September.
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