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阮景荣, 蔡庆华, 刘建康. 武汉东湖的磷——浮游植物动态模型[J]. 水生生物学报, 1988, 12(4): 289-307.
引用本文: 阮景荣, 蔡庆华, 刘建康. 武汉东湖的磷——浮游植物动态模型[J]. 水生生物学报, 1988, 12(4): 289-307.
Ruan Jingrong, Cai Qinghua, Liu diankang. A PHOSPHORUS-PHYTOPLANKTON DYNAMICS MODEL FOR LAKE DONGHU IN WUHAN[J]. ACTA HYDROBIOLOGICA SINICA, 1988, 12(4): 289-307.
Citation: Ruan Jingrong, Cai Qinghua, Liu diankang. A PHOSPHORUS-PHYTOPLANKTON DYNAMICS MODEL FOR LAKE DONGHU IN WUHAN[J]. ACTA HYDROBIOLOGICA SINICA, 1988, 12(4): 289-307.

武汉东湖的磷——浮游植物动态模型

A PHOSPHORUS-PHYTOPLANKTON DYNAMICS MODEL FOR LAKE DONGHU IN WUHAN

  • 摘要: 本文报道了东湖的一个富营养化模型。这个模型按照1年的时间标度描述东湖藻类的生长和磷循环,其状态变量包括浮游植物磷、藻类生物量、正磷酸盐、碎屑磷和沉积物磷。模型校准和检验结果表明,模型对于系统给定状态的描述是令人满意的,并且对于系统的强制函数的改变能给予合理的响应。根据东湖富营养化工程治理的初步设想,利用模型进行了东湖污水截流前后的水质预报,同时考查了截流后移出沉积物或引灌江水对于改善其水质的效果。模型所提供的各种预报可供拟定东湖治理方案时参考。

     

    Abstract: An eutrophication model has been developed for Lake Donghu in Wuhan, an eutrophic shallow body of water with a hydraulic retention time of about five months. The model describes the growth of phytoplankton and phosphorus cycling in the lake on 1-year time scale, and the state variables in the model are phytoplankton biomass, phosphorus in algal cells, orthophosphate, phosphorus in detritus and phosphorus in sediment. The results of model calibration and verification showed that the deerministic description of the given state of the ecosystem by the model is satisfactory, and the model can reasonably respond to the changes of forcing functions in the ecosystem. According to the tentative ideas about the recovery of the lake from eutrophication by engineering techniques, the model has been used to make the forecasts of water quality before and after diversion of the waste water for the lake and to examine the effects of sediment removal or lake water replacement on the improvement of the water quality. The various predictions given by the model are believed to be useful to map out a desirable programme for the restoration of the lake.

     

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