The good news is that the Ebro reservoirs are at a historic 85% water level. The bad thing is that we are going to spend it in a short time.

There are 6,640 hm3 of water in the Ebro basin. The reservoirs are at 85.1% of its total capacity at what is its highest level (for this date) of the decade. And yet, the fact that there is a lot of water is not news. All of Spain is the same (83.3%).

The news is that we are going to spend it.

A structural problem called ‘Mediterranean’. Every year, the pressure of the Mediterranean summer and the irrigation campaign empty the reservoirs very quickly. AND, as history has shown usthere is never too much water: “each dry period has served to implement emergency measures for agriculture that were not eliminated when the rains returned, they were used to expand irrigation, aggravating the problem in the following drought”, said Ana Tudela and Antonio Delgado.

And that, precisely that, is what we are about to see.

The complete image. Seeing the figures for the reservoirs can lead us to forget that, just three years ago, 85% of the basin’s surface was in “prolonged drought“and 45% of them declared themselves in shortage emergency. Mequinenza, the largest swamp, reached historic lows. It was a catastrophe not only in water terms, but also in energy terms.

Now, however, all that is in the past.

And Say’s Law lurks in the dark. What the old French economist Jean-Baptiste Say argued at the end of the 19th century is that “every supply creates its own demand“and, translated into this situation, this means that the fact that there is more water generates all the incentives in the world for there to be more irrigation.

As soon as we do it, this becomes clear. After all, not all of the basin’s storage capacity is enough for a full year of agricultural demand. Without the annual rainfall and the melting of snow, we could already consider all its reserves exhausted.

March is the key month. The irrigation campaign runs from April to September and that means that March is the key month for planning the year. It is true that the thaw has not yet begun (which this year is going to be very intense), but it helps us estimate what quantities of water are really available.

All irrigated agriculture in the valley depends on the water we are able to store during the spring. The question from now on becomes: how do we conserve as much water as possible before we once again enter a situation of risk?

And the problem is that we don’t have answers. Especially in a regulatory context in which are not foreseen widespread restrictions on irrigation. Economic, social and institutional incentives tell us that we are not yet prepared, as a country, to address the really important question: we do not have a water problem, we have a consumption problem.

There is still room for improvement in management, yes. But that won’t solve the problem: it only postpones it. And that 85% of reservoir water has given us unbeatable weather, we just have to hope that we can take advantage of it.

Image | Manuel Torres Garcia

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