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Dégradation des sols et salinité associées à l'irrigation. Corrections apportées en Aragon (Espagne)

Authors: Herrero Isern, Juan;

Dégradation des sols et salinité associées à l'irrigation. Corrections apportées en Aragon (Espagne)

Abstract

En Aragon les terres irriguées occupaient en 1984-85 une surface de 3 745 km2 (Léon et Delgado, 1988). La proportion est done de 20 % de la sur­face labourée, proportion légerement supérieure a la moyenne espagnole qui est de 14 %. Ces chiffres ne traduisent pos la véritable importance sociale de l'irrigation, car au centre de l'Ebre, comme dans la plupart des pays méditerranéens et des pays plus arides, l'irrigation est presque la seule possibilité d'une agriculture rentable. En Aragon, l'irrigation est traditionnellement vue comme la princi­pale option capable d'ass.urer la survie du peuple. Les travaux d'irrigation, con­nus depuis l'époque préromaine, se sont développés tout au long de l'histoire (Bolea, 1978). En général, on irriguait les terrasses quaternaires, qui bordent les fleuves.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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