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

Titre : Plants that pull nitrogen from thin air thrive in arid environments

The results were particularly surprising given that nitrogen-fixers lack the traits often associated with dry soils, such as the thick water-storing stems of cacti. "At first glance, nitrogen-fixers don’t necessarily appear to be adapted for arid ecosystems,"

ScienceDaily (August 23, 2022)

Résumé
After a comprehensive study of plants across the United States, researchers have arrived at the unexpected conclusion that plants able to fix atmospheric nitrogen are most diverse in arid regions of the country. This finding runs counter to the prevailing assumption that nitrogen-fixers should be comparatively most diverse in environments where nitrogen in the soil is in limited supply.

Story Source  : Florida Museum of Natural History

Annonce (ScienceDaily)