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A model on the carbon cycling in Lake Taihu, China

Author

Listed:
  • Weiping, Hu
  • Jørgensen, Sven Erik
  • Fabing, Zhang
  • Yonggen, Chen
  • Zhixin, Hu
  • Longyuan, Yang

Abstract

A model of the carbon cycling in Lake Taihu was developed based on the previous developed model EcoTaihu Model, which couples the hydrology, the nutrient cycling and a number of biological processes. The carbon cycling model (abbreviated CCM) has in addition to the states variables of the EcoTaihu Model, the carbon in phytoplankton, zooplankton, fish, macroplant, hydrogen carbonate carbon, carbonate carbon, dissolved carbon, abiotic organic carbon in water, organic carbon in sediment, soluble organic carbon in pore water, inorganic carbon in sediments, soluble inorganic carbon in pore water and pH. The calibration and validation of the CCM showed that the model results are in good accordance with the observations (from the period February17 to December. 5, 2003). It implies that the model can be used to assess the variation of the carbon dioxide flux at the water–air interface, and to find the pH value of the lake water as function of time. According to the model, the carbon dioxide flux at the water–air interface has clear, diurnal variations. Eutrophied water is a sink for the atmospheric carbon dioxide due to the phytosynthesis during the summer. Due to the terrestrial input of carbon to the lake, Lake Taihu is, however, a source of atmospheric carbon dioxide. The total annual flux is almost equal to the terrestrial input of carbon to the lake.

Suggested Citation

  • Weiping, Hu & Jørgensen, Sven Erik & Fabing, Zhang & Yonggen, Chen & Zhixin, Hu & Longyuan, Yang, 2011. "A model on the carbon cycling in Lake Taihu, China," Ecological Modelling, Elsevier, vol. 222(16), pages 2973-2991.
    • Handle: RePEc:eee:ecomod:v:222:y:2011:i:16:p:2973-2991
    DOI: 10.1016/j.ecolmodel.2011.04.018
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    References listed on IDEAS

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    1. Mukherjee, B. & Mukherjee, D. & Prasad, A. & Nivedita, M., 2007. "The transfer rates of inorganic carbon and budgetary analysis in a simulated aquatic system," Ecological Modelling, Elsevier, vol. 204(3), pages 279-288.
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    Cited by:

    1. Wang, Yanping & Peng, Zhaoliang & Liu, Gang & Zhang, Hui & Zhou, Xiangqian & Hu, Weiping, 2023. "A mathematical model for phosphorus interactions and transport at the sediment-water interface in a large shallow lake," Ecological Modelling, Elsevier, vol. 476(C).
    2. Dash, Siddhant & Kalamdhad, Ajay S., 2022. "Systematic bibliographic research on eutrophication-based ecological modelling of aquatic ecosystems through the lens of science mapping," Ecological Modelling, Elsevier, vol. 472(C).

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