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中南大学学报(自然科学版)

Journal of Central South University

第35卷    第4期    总第158期    2004年8月

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文章编号:1672-7207(2004)04-0573-04
二维随机水质模型在模拟污染带中的应用
郭 琳1,蔡固平1,2,曾光明1

(1.湖南大学环境科学与工程系,湖南长沙, 410082;
2.长沙市环境科学研究所,湖南长沙, 410001
)

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。

 

关键字: 二维随机水质模型;污染带;概率分布

Application of two-dimensional stochastic model
of water quality in simulating pollution zone
GUO Lin1, CAI Gu-ping1,2, ZENG Guang-ming1

1. Department of Environmental Science and Engineering, Hunan University, Changsha 410082, China;
2. Institute of Environmental Science Research of Changsha, Changsha 410001, China

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.

 

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

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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