Articles | Volume 25, issue 1
Hydrol. Earth Syst. Sci., 25, 169–191, 2021
https://doi.org/10.5194/hess-25-169-2021
Hydrol. Earth Syst. Sci., 25, 169–191, 2021
https://doi.org/10.5194/hess-25-169-2021

Research article 11 Jan 2021

Research article | 11 Jan 2021

Physical versus economic water footprints in crop production: a spatial and temporal analysis for China

Xi Yang et al.

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Short summary
Maximizing economic benefits with higher water productivity or lower water footprint is the core sustainable goal of agricultural water resources management. Here we look at spatial and temporal variations and developments in both production-based (PWF) and economic value-based (EWF) water footprints of crops, by taking a case study for China. A synergy evaluation index is proposed to further quantitatively evaluate the synergies and trade-offs between PWF and EWF.