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Ciencia e investigación agraria

versión On-line ISSN 0718-1620

Resumen

FELDMAN, Susana R; ALZUGARAY, Claudia  y  LEWIS, Juan P. Relationship between the soil seed bank and vegetation of tall grassland oí Spartina argentinensis. Cienc. Inv. Agr. [online]. 2007, vol.34, n.1, pp.41-48. ISSN 0718-1620.  http://dx.doi.org/10.4067/S0718-16202007000100005.

Tall grass communities of Spartina argentinensis Parodi are the most widespread plant communities in a large saline depression in Santa Fe, Argentina. The vegetation and soil seed bank for these communities have been studied. However, there is no information about the relationship between them. We worked with previous data obtained from the Federico Wildermuth Reserve, Colonia Bel Grano, Departamento San Martín, Santa Fe, Argentina (31°57' S; 61°23' W) and used the cover-abundance of the plant species and density of the soil seed bank for 1998 and 1999. The relationship between plant types C3 and C4 (C3/C4) and annual/perennial functional groups were determined. At the same time, the similarity index and the relationship between cover-abundance and density of the shared species was determined. According to results obtained, plant species relationship between of type C3 were more frequent in the soil seed bank, while plant species of type C4 were more abundant in the vegetation. There was no significant correlation between cover-abundance in the vegetation and soil seed bank density of the common species. The similarity index was very low due to the fact that the number of species common to vegetation and soil seed bank was very low. In conclusion, there was a low relationship between species of the soil seed bank and vegetation with plant species type C3 and C4 as predominant species, respectively

Palabras clave : Communities; cover-abundance; functional groups; halophylous propagules; similarity.

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