【摘要】 基于马尔科夫模型原理,对常熟市原型调水试验后水质改善情况进行动态评价。选定水质评价指标进行无量纲处理、隶属度划分、权重分配,构建概率转移矩阵,求出进步度,并对引水过程中污染物浓度的变化进行分析,从而进行水质评价。结果表明:调水试验后各断面水质均有相应变化,并且大部分断面水质在改善,离引水口最近的两个断面改善效果最为明显,部分断面因为引水不足以及沿程陆域污染等而导致水质有所恶化。更多还原

【Abstract】 Based on the principles of the Markov model dynamic evaluation was conducted to investigate the improvement of water quality after an experiment on prototype water diversion in Changshu City. Tthe water quality evaluation indices were selected for the dimensionless analysis,the division of the degree of membership,and the allocation of weights. The probability transfer matrix was established to obtain the degree of progress,and the change of concentrations of pollutants in the process of water diversion was analyzed,in order to evaluate the water quality. The results show that the water quality of all the sections have changed after the water diversion. The water quality of most of the sections improved,with the most significant improvement seen in the two sections nearest the water inlet. Meanwhile,the water quality of some sections deteriorated due to insufficient water diversion and pollution in the land area along the water diversion route.更多还原