长江水质的评价与预测模型

Appraisal and Forecast Models of Water Quality of Yangtze River

讨论了长江水质的评价与预测问题,分析过去10年主要统计数据,分别用指数法,优化模型,二阶线性差分方程模型,对长江水质进行了评价与预测．同时也就长江水质污染问题提出了可行的建议与意见,最后对预测结果进行了误差分析,并对模型进行了评价与推广．

The appraisal and forecast problem of water quality of Yangtze River are discussed. The main statistical data of the past decade was analyzed. The exponential method, optimal model, two order linear difference equation model were utilized, and the appraisal and forecast to the water quality of Yangtze River were carried out. Some feasible proposal and opinions about the water pollution problem Yangtze River were put forward. Finally the error analysis of the foreast results , some appraisals and promotion of the model were carried on.