水质模型发展过程中的若干规律分析

水质模型研究进展中存在着偶然的飞跃也存在着必然的规律。结合国内外大量水质模型的研究经验, 从模型的复杂程度、 不确定性、 研究范围、 适用范围在水环境研究中的地位和作用几方面分析研究了水质模型的发展过程中的内在规律, 从哲学的角度评价了水质模型的发展趋势及特点。选择复杂程度恰到好处的模型比一味选择复杂的模型更重要; 不确定性使水质模型只是对真相最接近的模拟; 选用适合特定条件下水体特征的模型; 影响水体的内因和外因权重在变化; 水质模型更好的运用需要社会管理的协助。客观理解和正确认识水质模型, 将会对恰当选用模型及弄清水质模型在水环境模拟中的地位起到指导作用。

Analysis of the regularity for the development of water quality models

Both the occasional leap and the inevitable rule ex ist in the process of the water quality models. Based on the research results home andabroad, the internal laws are analysed and studied in the development of the water quality models from the complexity, the uncertainty, the rangeof the study, the suitable scope, the position and function of water quality models in water environment. The development tendency and charac2teristic of the water quality models is appraised from the view of philosophy. It is more important to choose the most appropriate model than themore complex one; the water quality models is the closest simulation of the truth because of the uncertainty; select the fittest water quality modelunder certain conditions; the weight of the internal cause and external cause changes under different water conditions; the better use of the waterquality models needs the assistance of social management. The objective understanding and the accurate comprehension of the water quality mod2els will have a guiding effect on the selection of a suitable water quality model and the position in the application.