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Open AccessEditor’s ChoiceArticle

Bridging the Data Gap in the Water Scarcity Footprint by Using Crop-Specific AWARE Factors

1
CIRAIG, Polytechnique Montreal, Montreal, QC H3C 3A7, Canada
2
CESQA, Department of Industrial Engineering, University of Padova, 35139 Padova, Italy
*
Author to whom correspondence should be addressed.
Water 2019, 11(12), 2634; https://doi.org/10.3390/w11122634
Received: 27 August 2019 / Revised: 30 November 2019 / Accepted: 10 December 2019 / Published: 13 December 2019
The assessment of the water scarcity footprint of products emerged as an important step in supporting water management strategies. Among others, the AWARE methodology was published as a consensus-based indicator to perform such an assessment at a watershed level and monthly scale. The need to adopt such a detailed resolution, however, collides with the availability of data, so that general year and country-wide factors are commonly used. The objective of this study is to develop and verify the applicability of 26 crop-specific water scarcity characterization factors to help assess the water scarcity footprint when data and information availability is limited. To do so, a weighted average consumption approach was adopted, starting from local AWARE characterization factors and local crop-specific water consumption. The resulting factors, ranging from 0.19 m3/ton eq for “other perennial crop” in Brunei to 9997 m3/ton eq for “other annual crop” in Mauritania, illustrate the large variability of potential water scarcity impacts. Factors were applied to the water consumption of selected crops to assess their water scarcity footprint. The results of the study confirmed that the use of crop-specific factors is recommended as they are a better proxy of water scarcity in a region when compared to their national generic counterparts. View Full-Text
Keywords: water footprint; life cycle assessment; agriculture; irrigation; impact assessment water footprint; life cycle assessment; agriculture; irrigation; impact assessment
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Boulay, A.-M.; Lenoir, L.; Manzardo, A. Bridging the Data Gap in the Water Scarcity Footprint by Using Crop-Specific AWARE Factors. Water 2019, 11, 2634.

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