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Pelagic nitrogen cycling in Jiaozhou Bay, a model study I: The conceptual model

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Abstract

A zero-dimensional box model (PNCMjzb) with six state variables (ammonium, nitrate, dissolved organic nitrogen, phytoplankton, zooplankton and detritus) was developed to study nitrogen cycling in the Jiaozhou Bay pelagic ecosystem. The dominant processes within these compartments are considered with nitrogen as flow currency. Phytoplankton and zooplankton are treated as separate state variables, assuming that the species composition was dominated by two or three species the dynamic constants of which are similar and that they represent the entire plankton community. The microbial loop has not been integrated explicitly in the model. The turnover of bacteria is included implicitly in processes such as detritus decomposition, DON remineralization, pelagic nitrification and denitrification. The model is driven by two forcing variables, viz. water temperature and light intensity. Historical data from the 1980s and 1990s were compiled and used for model calibration. In this paper (part I), the consideration of every main compartment in the model is interpreted in detail. And the applied equations and parameters are presented. The main results from the simulations together with discussion about phytoplankton dynamics and primary production in Jiaozhou Bay are presented in the next paper (part II).

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Authors and Affiliations

  1. College of Chemistry and Chemical Engineering, Ocean University of China, 266003, Qingdao, China

    Ren Ling & Zhang Manping

  2. Institute of Biogeochemistry and Marine Chemistry, University of Hamburg, D-20146, Hamburg, Germany

    Brockmann & Uwe H.

  3. Institute of Physical Oceanography, Ocean University of China, 266003, Qingdao, China

    Feng Shizuo

Authors
  1. Ren Ling
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  2. Zhang Manping
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  3. Brockmann
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  4. Uwe H.
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  5. Feng Shizuo
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Additional information

This work was under the framework of the co-operative project between the Ocean University of China and University of Hamburg (UJEK, No. 03F0189B)

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Ling, R., Manping, Z., Brockmann et al. Pelagic nitrogen cycling in Jiaozhou Bay, a model study I: The conceptual model. Chin. J. Ocean. Limnol. 21, 358–367 (2003). https://doi.org/10.1007/BF02860432

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  • DOI: https://doi.org/10.1007/BF02860432

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