Quantity and quality of China's water from demand perspectives

Li, Xian, Shan, Yuli, Zhang, Zongyong, Yang, Lili, Meng, Jing and Guan, Dabo (2019) Quantity and quality of China's water from demand perspectives. Environmental Research Letters, 14 (12). ISSN 1748-9318

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Abstract

China is confronted with an unprecedented water crisis regarding its quantity and quality. In this study, we quantified the dynamics of China's embodied water use and chemical oxygen demand (COD) discharge from 2010 to 2015. The analysis was conducted with the latest available water use data across sectors in primary, secondary and tertiary industries and input-output models. The results showed that (1) China's water crisis was alleviated under urbanisation. Urban consumption occupied the largest percentages (over 30%) of embodied water use and COD discharge, but embodied water intensities in urban consumption were far lower than those in rural consumption. (2) The 'new normal' phase witnessed the optimisation of China's water use structures. Embodied water use in light-manufacturing and tertiary sectors increased while those in heavy-manufacturing sectors (except chemicals and transport equipment) dropped. (3) Transformation of China's international market brought positive effects on its domestic water use. China's water use (116-80 billion tonnes (Bts))9 and COD discharge (3.95-2.22 million tonnes (Mts)) embodied in export tremendously decreased while its total export values (11-25 trillion CNY) soared. Furthermore, embodied water use and COD discharge in relatively low-end sectors, such as textile, started to transfer from international to domestic markets when a part of China's production activities had been relocated to other developing countries.

Item Type: Article
Uncontrolled Keywords: embodied cod discharge,embodied water use,input-output analysis,renewable energy, sustainability and the environment,environmental science(all),public health, environmental and occupational health ,/dk/atira/pure/subjectarea/asjc/2100/2105
Faculty \ School: Faculty of Social Sciences > School of International Development
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Depositing User: LivePure Connector
Date Deposited: 28 Mar 2020 01:30
Last Modified: 28 Aug 2020 23:54
URI: https://ueaeprints.uea.ac.uk/id/eprint/74663
DOI: 10.1088/1748-9326/ab4e54

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