中文摘要：

为了准确模拟、预测和评价松花江流域河流水环境系统行为，利用O’Connor水质模型建立了松花江河段BOD—DO之间的响应关系．通过水团追踪监测试验方法获得了大量数据，识别模型参数、灵敏度分析和模型验证．结果表明：试验确定的松花江佳木斯段模型参数取值合理，其精度可以满足水质模拟的要求；对佳木斯段BOD—DO模型参数进行了温度参数修正；参数灵敏性分析显示：大气复氧系数和NBOD衰减系数对模型预测结果影响较大，CBOD耗氧系数次之，NBOD总衰减速率和CBOD总衰减速率灵敏度最低．松花江佳木斯江段的实测结果证明了BOD-DO模型和相应参数的有效性和可靠性．

英文摘要：

In order to accurately simulate, predict and evaluate the water environmental system of the Songhua River, O＇Connor water quality model was used to establish BOD-DO response relation of the Songhua River. A huge mass of data were obtained by water mass tracing to realize model parameter identification, sensitivity analysis and model validation. The results show that by water mass tracing, the oxygen consumption coefficient, the reaeration coefficient and the total attenuation coefficient of the Songhua River are reasonable and can meet the requirements of water quality simulation. The temperature parameters of BOD-DO model of the Songhua River were corrected by the correction equations. The sensitivity analysis of model parameters show that the atmospheric reaeration coefficient of Ka and NBOD oxygen consumption coefficient of Kn are main influence factors on the prediction results with less influence of CBOD oxygen consumption coefficient of Kd, while NBOD total attenuation rate of Km and CBOD total attenuation rate of Kr have the slightest influence. The BOD-DO model and the corresponding parameters are improved by the measure results of Jiamusi section of the Songhua River to give research basis for further simulation of water environmental system.