Ecological network analysis of an urban water metabolic system: model development, and a case study for Beijing

The Science of the Total Environment
Yan ZhangBrian D Fath

Abstract

Using ecological network analysis, we analyzed the network structure and ecological relationships in an urban water metabolic system. We developed an ecological network model for the system, and used Beijing as an example of analysis based on the model. We used network throughflow analysis to determine the flows among components, and measured both indirect and direct flows. Using a network utility matrix, we determined the relationships and degrees of mutualism among six compartments--1) local environment, 2) rainwater collection, 3) industry, 4) agriculture, 5) domestic sector, and 6) wastewater recycling--which represent producer, consumer, and reducer trophic levels. The capacity of producers to provide water for Beijing decreased from 2003 to 2007, and consumer demand for water decreased due to decreasing industrial and agricultural demand; the recycling capacity of reducers also improved, decreasing the discharge pressure on the environment. The ecological relationships associated with the local environment or the wastewater recycling sector changed little from 2003 to 2007. From 2003 to 2005, the main changes in the ecological relationships among components of Beijing's water metabolic system mostly occurred between the l...Continue Reading

References

Oct 1, 1973·Journal of Theoretical Biology·B Hannon
Nov 24, 2004·Computational Biology and Chemistry·Robert E Ulanowicz

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Citations

Jan 1, 2014·Environmental Science & Technology·Wenlong ZhangDawei Wang
Mar 19, 2013·The Science of the Total Environment·Chu-Long HuangChang-Ping Yu
Aug 30, 2012·Journal of Environmental Management·Eléonore LoiseauVéronique Bellon-Maurel
Nov 8, 2011·Journal of Environmental Management·Yan ZhangNaijin Yang
Sep 1, 2015·Environmental Science & Technology·Yan ZhangXiangyi Yu
Jul 24, 2012·Environmental Pollution·Shengsheng LiJinyun Zhang
Apr 27, 2013·Environmental Pollution·Yan Zhang
Jul 14, 2016·Environmental Science & Technology·Yan ZhangYanxian Li
Oct 27, 2018·The Science of the Total Environment·Kayla PiezerDefne Apul
Mar 20, 2012·Environmental Science & Technology·Shaoqing Chen, Bin Chen
Jan 17, 2012·Environmental Science & Technology·Zhifeng YangBin Chen
Dec 13, 2018·Environmental Science & Technology·Sai LiangMing Xu
Oct 5, 2021·The Science of the Total Environment·Irene Voukkali, Antonis A Zorpas

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