Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Air and Ténéré Natural Reserves' has mentioned 'Alluvial' in the following places:
Occurrence Sentence Text Source
In the larger valleys where water in the alluvial reservoirs is plentiful, a very specific habitat has developed associating a dense ligneous stratum of doum palms, date palms, Acacia nilotica, Acacia raddiana, Boscia senegalensis, Salvadora persica, and a herbaceous stratum with among others, Stipagrostis vulnerans.