摘要
针对河水流量变化大这一特点,采用以对数正态分布理论为指导的随机计算模式,以近十年90%保证率最枯月平均流量为设计流量,确定黄河兰州段主要污染物的容许排污量,即随机水环境容量.
Aimed at the feature of great fluctuation of water flow-rate in rivers and taking the monthly average flow-rate at low water with 90% guaranty in recent ten years as design flow-rate, the permissible amount of major pollutants discharged into Yellow River by Lanzhou namely the stochastic environment capacity of waters, was determined by using a stochastic computation mode on the basis of lognormal distribution theory.
出处
《兰州理工大学学报》
CAS
北大核心
2007年第1期67-70,共4页
Journal of Lanzhou University of Technology
关键词
概率稀释模型
对数正态分布
环境容量
总量控制
probabilistic dilution model
lognormal distribution
environment capacity
total quantity control
