Resumen

MARQUEZ, Justo  y  DALMASSO, Antonio D.. Plant communities of wet environments in El Leoncito National Park, San Juan, Argentina. Multequina [online]. 2003, vol.12, n.2, pp.55-67. ISSN 1852-7329.

El Leoncito National Park is located on the western side of the Sierras del Tontal (31º54' S and 59º10' W) (Calingasta, San Juan province). In the study area rainfall increases from 100 to 400 mm with altitude, and mean annual temperature is 22ºC in the valley, and 10ºC in the highland area. Phytosociological releves were carried out in the humid sectors of the area, and data obtained were included in a synthetic table of releves. Plant communities of meadows, streams, oasis area, and natural depressions were described. Over a total of 157 plant species recorded in the most humid environments of the Reserve, allien plants represented 20.4%.

Palabras clave : Phytosociology; Andes; Conservation.

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