期刊
ECOLOGICAL ECONOMICS
卷 94, 期 -, 页码 78-85出版社
ELSEVIER
DOI: 10.1016/j.ecolecon.2013.06.018
关键词
Virtual water; Multi-region input-output analysis; Water scarcity; International trade
资金
- Australian Academy of Science under the Australia-Germany Researcher Mobility Call
- Australian Research Council [DP0985522, DP130101293, LP0669290]
- Australian Research Council [LP0669290] Funding Source: Australian Research Council
Recent analyses of the evolution and structure of trade in virtual water revealed that the number of trade connections and volume of virtual water trade have more than doubled over the past two decades, and that developed countries increasingly import water embodied in goods from the rest of the world to alleviate pressure on domestic water resources. At the same time, as demand continues to increase and climate change threatens to alter hydrological cycles, water scarcity is a growing problem. Does research into virtual water trade need to consider water scarcity and differentiate flows out of water-scarce regions from flows out of water-abundant regions? Previous studies sum and compare virtual water volumes originating in countries experiencing vastly different degrees of water scarcity. We therefore incorporate water scarcity into an assessment of global virtual water flows. We use input-output analysis to include indirect virtual water flows. We find that the structure of global virtual water networks changes significantly after adjusting for water scarcity. (C) 2013 Elsevier B.V. All rights reserved.
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