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Modelling carbon and nutrient cycling in a simulated pond system at Ranchi

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  • Mukherjee, B.
  • Mukherjee, D.
  • Nivedita, M.

Abstract

Mathematical modelling of ecosystems requires a considerable amount of knowledge about the subsystems functioning within the broad framework, and the various rate processes and transfer coefficients that control the dynamic aspects. A detailed analysis of the transfer rates and budget of inorganic carbon and nutrients in a simulated pond was conducted for assessment, and comparison with aquatic bodies that undergo cultural eutrophication. In these systems, the processes are complicated by a variety of inputs. Such inputs interfere with the assessment of lake background conditions and water quality. We used the compartmental model of biogeochemical cycling and a mathematical model designed by our group to calculate transfer rates of inorganic carbon and nutrients through various processes. The major external variables or forcing functions considered were light and temperature, while the state variables included the biotic and the abiotic compartments. The major processes studied were: photosynthesis, respiration and decomposition that play an important part in balancing the nutrient content of the system and maintain a dynamic equilibrium. The aquatic system depicted a perfect cycling of carbon while the nitrates and phosphates resonated in tune with the metabolic rhythm of the biota. The study illustrates the use of our mathematical model in determining the various rate processes of the biota, and for the development of compartmental models for analysis and management of systems through process optimization.

Suggested Citation

  • Mukherjee, B. & Mukherjee, D. & Nivedita, M., 2008. "Modelling carbon and nutrient cycling in a simulated pond system at Ranchi," Ecological Modelling, Elsevier, vol. 213(3), pages 437-448.
  • Handle: RePEc:eee:ecomod:v:213:y:2008:i:3:p:437-448
    DOI: 10.1016/j.ecolmodel.2008.01.013
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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. Serpa, Dalila & Ferreira, Pedro Pousão & Caetano, Miguel & da Fonseca, Luís Cancela & Dinis, Maria Teresa & Duarte, Pedro, 2012. "Modelling of biogeochemical processes in fish earth ponds: Model development and calibration," Ecological Modelling, Elsevier, vol. 247(C), pages 286-301.
    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).
    3. Jørgensen, Sven Erik, 2010. "A review of recent developments in lake modelling," Ecological Modelling, Elsevier, vol. 221(4), pages 689-692.

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