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Open AccessArticle

Ecological Network Analysis for Water Pollution Metabolism in Urban Water Use System: Case Study of Fuzhou, China

by 1,2,3, 4, 1,2,* and 1,2
1
Key Laboratory of Three Gorges Reservoir Region’s Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China
2
College of Environment and Ecology, Chongqing University, Chongqing 400045, China
3
Fuzhou Planning Design Research Institute, Fuzhou 350108, China
4
Dadukou District Ecological Environment Monitoring Station, Chongqing 400082, China
*
Author to whom correspondence should be addressed.
Academic Editor: Enrico Creaco
Water 2021, 13(6), 834; https://doi.org/10.3390/w13060834
Received: 4 February 2021 / Revised: 5 March 2021 / Accepted: 16 March 2021 / Published: 18 March 2021
(This article belongs to the Section Urban Water Management)
Water environment deterioration in urban environments is a critical concern in sustainable water management processes, and the method of urban water metabolism has not been developed more fully in this field. Therefore, there is a requirement to evaluate urban water metabolism with a focus on water quality for sustainable water use. In this study, information and network environ analyses in ecological network analysis (ENA) were explored to measure the water pollutant metabolism state. Six sub-basins in the old part of Fuzhou in China using data from 2016 and 2019 were selected for the case study. Results showed that (1) water pollutant metabolism amount decreased and the metabolism efficiency was improved; (2) the contribution of sub-basins III and IV for pollutant metabolism were more important than the other sub-basins; (3) the river in sub-basin III was the maximum recipient control as a sink node; and (4) ecological relations between compartments were improved for pollutant metabolism. Based on the results, we proposed five types of ENA indicators including TST, a, wj, matrix CX, matrix sgnU, and C for the water pollutant metabolism assessment. The method developed here provided new insights to understand the production, transport, degradation, and discharge of pollutants in water use activities in urban environments, and we hope it can be helpful to improve the extension and application of the water metabolism approach in managing urban water quantity and quality in future. View Full-Text
Keywords: urban water metabolism; water pollutant metabolism; information analysis; network environ analysis; ecological network analysis urban water metabolism; water pollutant metabolism; information analysis; network environ analysis; ecological network analysis
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MDPI and ACS Style

Gao, X.; Zeng, Y.; Ji, F.; Jiang, L. Ecological Network Analysis for Water Pollution Metabolism in Urban Water Use System: Case Study of Fuzhou, China. Water 2021, 13, 834. https://doi.org/10.3390/w13060834

AMA Style

Gao X, Zeng Y, Ji F, Jiang L. Ecological Network Analysis for Water Pollution Metabolism in Urban Water Use System: Case Study of Fuzhou, China. Water. 2021; 13(6):834. https://doi.org/10.3390/w13060834

Chicago/Turabian Style

Gao, Xiaoping; Zeng, Yao; Ji, Fangying; Jiang, Lei. 2021. "Ecological Network Analysis for Water Pollution Metabolism in Urban Water Use System: Case Study of Fuzhou, China" Water 13, no. 6: 834. https://doi.org/10.3390/w13060834

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