A multi-source virtual water metabolism model for urban systems

JOURNAL OF CLEANER PRODUCTION

卷:275

Article

Zheng, Xiaogui¹  Huang, Guohe^2,3  Liu, Lirong⁴  Zheng, Boyue⁵  Zhang, Xiaoyue¹ 

[1] Univ Regina, Inst Energy Environm & Sustainable Communities, Regina, SK S4S 0A2, Canada

[2] Univ Regina, Fac Engn & Appl Sci, Regina, SK S4S 0A2, Canada

[3] Int Soc Environm Informat Sci, 9803A Jingshidasha BNU,19 Xinwaidajie, Beijing 100875, Peoples R China

[4] Univ Surrey, Ctr Environm & Sustainabil, Guildford GU2 7XH, Surrey, England

[5] North China Elect Power Univ, Sino Canada Resources & Environm Res Acad, Beijing 102206, Peoples R China

关键词: Multiple water sources;    Water flow reduction pathways;    Urban virtual water metabolism systems;    Ecological network analysis;    Chongqing;   

DOI  :  10.1016/j.jclepro.2020.124107

来源: Elsevier

【 摘 要 】

Increasing industrialization and urbanization stress on water resources in the world. It is crucial to analyze urban virtual water metabolism systems comprehensively to uncover economic water flow reduction pathways to support maintainable development. In this study, a multi-source virtual water metabolism (MVWM) model is developed for Chongqing City to facilitate distributive analysis of the interactive effects from multiple water sources on urban systems. In addition, three disaggregated types of water sources (surface water, groundwater, and other water) are examined with their distributive features in relation to virtual and physical water shortages being highlighted among multiple sectorial users. The system's health condition is monitored by integrating ecological network analysis (ENA) and input-output analysis (IOA). Results illustrate that the groundwater system in Chongqing is relatively healthy and can be exploited appropriately, while the surface water system has higher water stress. Direct water consumptions are mostly happened in primary industries, while indirect water consumptions are most likely to occur in secondary and tertiary industries. Based on ecological hierarchy analysis, Advanced Manufacturing (AM) has large pulling and driving force simultaneously, which denotes that AM is very important for the whole economic system of Chongqing. Besides, some typical industries with damaging relationships are identified based on ecological network utility analysis to alleviate water scarcity, such as construction, mining and washing of coal, as well as manufacture of foods and processing of tobacco. (C) 2020 Elsevier Ltd. All rights reserved.

【 授权许可】

Free