二维随机水质模型在模拟污染带中的应用

来源期刊：中南大学学报(自然科学版)2004年第4期

论文作者：郭琳 蔡固平 曾光明

文章页码：573 - 576

关键词：二维随机水质模型;污染带;概率分布

Key words：two-dimensional stochastic model of water quality; pollution zone; probability distribution

摘    要：利用二维随机水质模型计算了排入河流中的污染物浓度分布,建立了多个不确定因素影响时河流污染带长度及水环境容量的概率分布计算模型。研究结果表明:利用该计算模型对湘江水质进行预测,预测结果与实测数据相吻合,实测值与计算均值相对误差为0.99%~9.12%;该计算模型的概率分布解能够反映任一点的污染物浓度变化,以及在不确定因素影响下污染带的范围和水环境容量随机变化情况。

Abstract: Based on the concentration distribution of the pollutants calculated by two-dimensional stochastic model of water quality, a calculating model was established to determine the probability distribution of the pollution zone and water environmental capacity under some uncertain factors. By simulating the water quality of Xiangjiang River with this model, it is found that the calculating results are in agreement with the measured results and the relative error is from 0.99% to 9.12%. It is shown that this model could describe the change of pollutant’s concentration at any point, and the pollution zone and the water environmental capacity with the change of some uncertain factors.

基金信息：国家杰出青年科学基金资助项目