Developing an EFDC and Numerical Source-Apportionment Model for Nitrogen and Phosphorus Contribution Analysis in a Lake Basin

Water

Huanzhen Zhang¹  Yunhai Sun²  Wenjing Ma³  Rui Zou⁴  Hui Bai⁵  Rui Ye⁵  Dong Wang⁶  Yan Chen⁶ 

[1] Tech, Ltd., Beijing 100871, China;Technology, Ltd., Nanjing 210012, China;;Nanjing Innowater Environmental Science &;Rays Computational Intelligence Laboratory, Beijing Inteliway Envi. Sci &School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing 100083, China;United Center for Eco-Environment in Yangtze River Economic Belt, Chinese Academy for Environmental Planning, Beijing 100012, China;

关键词: numerical source-apportionment;    EFDC;    contribution analysis;    Lake Bali;   

DOI  :  10.3390/w10101315

来源: DOAJ

【 摘 要 】

The numerical source-apportionment model is an efficient and useful method for analyzing water-quality responses to nutrient loading in rivers and lakes. In this study, the Environmental Fluid Dynamic Code (EFDC) and numerical source-apportionment model were applied to Lake Bali in Jiujiang City, China to predict the contributions of various pollution sources to the lake at any time and position. We calibrated and validated the model by comparing its predictions with observed hydrodynamic and water-quality parameters from 2014 to 2015. Application of the calibrated model to simulate water-quality responses to a pollution source showed that the contribution of a pollution source to water quality in the lake has strong spatial heterogeneity. The results provide useful information for the optimization of pollution load reduction in Lake Bali and can be used to determine the most effective implementation of its pollution-control plan. The model built in this study can also be used for pollution source-apportionment in other urban lakes and is superior to other traditional source-apportionment models.

【 授权许可】

Unknown