- Publications & Research
- Publications Database
- Publication #268
An input-output approach to evaluate the water footprint and virtual water trade of Beijing, China
- An input-output approach to evaluate the water footprint and virtual water trade of Beijing, China
- Ziyuan Wang
- Kai Huang
- Shunshun Yang
- Yajuan Yu
Journal of Cleaner Production, Volume 42, Pages 172-179
- Water is scarce in Beijing, China, and rapid economic and societal development, as well as the dense population, causes severe pressure on local water resources. This paper involves the 'water footprint', defined as the volume of water needed to produce the goods and services consumed, which quantifies the environmental impact of consumption. By combining an input-output model with intersectoral water flows, this paper describes a modified input-output model to calculate the direct, indirect and gross water footprint intensity and the gross water footprint of different sectors in Beijing in 2002 and 2007. The results show declines in the agricultural and industrial water footprints for these years. The grey water footprint, which reflects environmental pollution caused by human production and consumption, was also calculated and suggests that the shortage of water resources, rather than water pollution, is the main problem in Beijing. Evaluation of the virtual water trade, along with water savings in the various sectors, verified that Beijing is a net virtual water importer. Furthermore, the water footprint shows that Beijing is advanced in water use efficiency compared to other provinces in China. Finally, adjustments in the industrial structure, along with virtual water importing, should be prioritized as water-saving strategies for Beijing.
- More Information
Incorrect or incomplete information? Click here to report this.
This website provides meta data on papers and other publications, with links
to the original publications. These papers may be copyrighted or otherwise
protected by the publishing journal or author. Some journals provide open
access to their publications. When possible we will try to include abstracts
and more details for open access publications. For more details, follow the
link to the original document and/or contact the publisher/author.