Uncertainty analyses on the calculation of water environmental capacity by an innovative holistic method and its application to the Dongjiang River  

作　　者：Qiuwen Chen Qibin Wang Zhijie Li Ruonan Li 

机构地区：[1]Center for Eco-Environmental Research,Nanjing Hydraulic Research Institute [2]State Key Laboratory of Environmental Aquatic Chemistry,Research Center for Eco-Environmental Sciences,Chinese Academy of sciences

出　　处：《Journal of Environmental Sciences》2014年第9期1783-1790,共8页环境科学学报（英文版）

基　　金：the funding from the National Basic Research Program (973) of China (No.2010CB429004);the Chinese Academy of Sciences (No.KZZD-EW-10-02);the National Natural Science Foundation of China (No.51279196);Nanjing Hydraulic Research Institute (No.Y913017);Ministry of Communication (No.2011328222120)

摘　　要：The estimation and allocation of water environmental capacity （WEC） are essential to water quality management and social-economic interests. However, there is inevitable uncertainty in the capacity estimation due to model conceptualization, data collection and parameter calibration. An innovative holistic approach was developed, which took both independence and relevance between parameters into account to analyze the uncertainties in WEC calculation and estimate the margin of safety. The Doniang River was taken as the case to demonstrate the method, focusing on the chemical oxygen demand and NH-N that were the two major water quality problems in the river. The results showed that the proposed holistic approach is very promising and applicable compared to traditional methods of uncertainty analysis.The estimation and allocation of water environmental capacity （WEC） are essential to water quality management and social-economic interests. However, there is inevitable uncertainty in the capacity estimation due to model conceptualization, data collection and parameter calibration. An innovative holistic approach was developed, which took both independence and relevance between parameters into account to analyze the uncertainties in WEC calculation and estimate the margin of safety. The Doniang River was taken as the case to demonstrate the method, focusing on the chemical oxygen demand and NH-N that were the two major water quality problems in the river. The results showed that the proposed holistic approach is very promising and applicable compared to traditional methods of uncertainty analysis.

关 键 词：Water environmental capacityModel uncertaintyHolistic approachDon^iang River 

分 类 号：X26[环境科学与工程—环境科学] TM714.3[电气工程—电力系统及自动化]