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A system-dynamic model on the competitive growth between Potamogeton malaianus Miq. and Spirogyra sp

Author

Listed:
  • Han, Hongjuan
  • Chen, Yonggen
  • Jørgensen, Sven Erik
  • Nielsen, Søren Nors
  • Hu, Weiping

Abstract

A system-dynamic model has been built to evaluate the competition between submerged macrophytes Potamogeton malaianus Miq. (PM) and filamentous green algae Spirogyra sp. (SP). The data background is based on a spring–summer and an autumn–winter experiment carried out in artificial field ponds. The experiments had the aim to acquire a knowledge base necessary to a successful restoration of submerged macrophyte vegetation in Lake Taihu, China by use of P. malaianus Miq. The model mainly focuses on variations in water volume; biomass dynamics of P. malaianus Miq., Spirogyra sp. and zoobenthos; nutrients cycling between water column, P. malaianus Miq., Spirogyra sp., zoobenthos, detritus and sediment. Sixteen state variables are included in the model: biomass of P. malaianus Miq., Spirogyra sp. and zoobenthos; nitrogen in sediments, detritus, in P. malaianus Miq., in Spirogyra sp. and zoobenthos; total dissolved nitrogen; phosphorus in sediments, detritus, in P. malaianus Miq., in Spirogyra sp. and in zoobenthos; total dissolved phosphorus, and water volume of the experiment pond. The calibration and validation of the model show a good accordance with the results of the spring–summer experiment and the autumn–winter experiment.

Suggested Citation

  • Han, Hongjuan & Chen, Yonggen & Jørgensen, Sven Erik & Nielsen, Søren Nors & Hu, Weiping, 2009. "A system-dynamic model on the competitive growth between Potamogeton malaianus Miq. and Spirogyra sp," Ecological Modelling, Elsevier, vol. 220(18), pages 2206-2217.
    • Handle: RePEc:eee:ecomod:v:220:y:2009:i:18:p:2206-2217
    DOI: 10.1016/j.ecolmodel.2009.05.013
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    Cited by:

    1. Xuan, Zhemin & Chang, Ni-Bin, 2014. "Modeling the climate-induced changes of lake ecosystem structure under the cascade impacts of hurricanes and droughts," Ecological Modelling, Elsevier, vol. 288(C), pages 79-93.
    2. Matinzadeh, Mohammad Mehdi & Abedi Koupai, Jahangir & Sadeghi-Lari, Adnan & Nozari, Hamed & Shayannejad, Mohammad, 2017. "Development of an innovative integrated model for the simulation of nitrogen dynamics in farmlands with drainage systems using the system dynamics approach," Ecological Modelling, Elsevier, vol. 347(C), pages 11-28.
    3. Hu, Weiping, 2016. "A review of the models for Lake Taihu and their application in lake environmental management," Ecological Modelling, Elsevier, vol. 319(C), pages 9-20.
    4. Han, Hongjuan & Hu, Weiping, 2012. "Modeling the species shift from Potamogeton malaianus Miq. to Potamogeton maackianus A. Bennett in the experiment pond," Ecological Modelling, Elsevier, vol. 242(C), pages 10-19.

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