中文摘要：

建立了一个浅水湖泊生态模型，将自然环境概化为大气、水体和底泥三相，共涉及10个变量，试图揭示变量相互关联，影响水体富营养化进程的变化规律．通过五里湖1998年实测资料对模型的关键参数进行率定，再模拟1997-2000年间的富营养化逐日演变过程．计算结果与实测数据较为一致，显示气象条件和营养盐对藻类的生长起决定性的影响，藻类的生长高峰出现在夏季；有机物和悬浮物质等相关变量则受藻类生长的影响，均呈现季节性的变化规律．

英文摘要：

An ecological model of shallow lakes was builted to generalize natural environment into three phases of atmosphere, waters and sediment involving totally 10 variables, trying to reveal the correlation of variables and the variation rule of influence the process of waters eutrophication. The key parameter of the model was calibrated through the observed actually data of Wulihu bay in 1998; also modeled the daily development of eutrophication variation process from 1997 to 2000. The calculated results and the actually measured data were more consistent showing that the decided influence of weather condition and the nutrientsubstance off the algae growth, with the growth peak of the algae in summer; the correlative variables of organism and suspended substance was influenced by the algae growth, all appearing the seasonal variation rule.