Informations et ressources scientifiques
sur le développement des zones arides et semi-arides

Accueil du site → Brèves → Brèves 2009 → Perennial Vegetation : an indicator of desertification in Spain

Perennial Vegetation : an indicator of desertification in Spain

ScienceDaily (Sep. 4, 2009)

Perennial Vegetation : an indicator of desertification in Spain

ScienceDaily (Sep. 4, 2009)

In order to foresee the appearance of desertification processes, the team of scientists from the Rey Juan Carlos University (URJC) has evaluated the spatial distribution of vegetation as an "early" indicator of the appearance of desertification processes.

To do so, they analyzed the formations dominated by esparto or needlegrass (stipa tenacissima), one of the most representative ecosystems in the Iberian Peninsula.

The conclusions indicate that perennial vegetation cover, "a parameter easily attainable by means of taking samples in the field or air photographs", can be used in a "satisfactory and robust manner" in order to evaluate the early appearance of desertification processes in semi-arid esparto fields.

Spain is the country with the greatest risk of desertification in Europe. According to the estimates of the Ministry of the Environment and Rural and Marine Affairs, 18% of the surface area of Spain displays a high or very high risk of suffering this phenomenon.

The study has been published in the magazine Ecology.

Pour en savoir plus sur le site de ScienceDaily

Page publiée le 30 septembre 2009, mise à jour le 2 août 2014