Water footprint benchmarks for crop production

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In a new report Mekonnen and Hoekstra (2013) show that if the green-blue water footprint of crop production would be reduced everywhere in the world to the level of the best 25th percentile of current global production, there would be a water saving in global crop production of 39% compared to the reference water consumption. With a reduction to the water footprint levels of the best 10th percentile of current global production, the water saving would be 52%.

In the case that nitrogen-related grey water footprints in crop production are reduced, worldwide, to the level of the best 25th percentile of current global production, water pollution is reduced by 54%. If grey water footprints per ton of crop are further reduced to the level of the best 10th percentile of current production, water pollution is reduced by 79%.

The full report can be accessed here:

Mekonnen, M.M. and Hoekstra, A.Y. (2013) Water footprint benchmarks for crop production, Value of Water Research Report Series No. 64, UNESCO-IHE, Delft, the Netherlands.

http://www.waterfootprint.org/Reports/Report64-WaterFootprintBenchmarks-CropProduction.pdf

1 Answer

  1. With the PROJECT of lyseconcept, Revalorization of the waste waters pourt a productive organic farming the asked question in its entirety on this report does not exist any more. it is very difficult to control the need for water of agriculture. especially when watering is depend on the temperature. with the recycling of waste waters it is finished more problem: the farmer has as much water than he wants and to see even more This report still remains in a diagram which does not tioent account of the development in the technologies and the needs. one dreamed, an idea