The Seed Bank of an Old Pampean Prairie and its Relation With the Standing Vegetation.

AUTOR(ES)

BOCCANELLI, S.I.

FONTE

Pesquisa Agropecuaria Brasileira

DATA DE PUBLICAÇÃO

2011

RESUMO

The seed bank of a prairie which has not been ploughed for at least 40 years was analysed and compared with standing vegetation. There were 28 species in the seed bank: 18 monocotyledoneae and 10 dicotyledoneae, plus five unknown species. In the standing vegetation there were 39 species: 19 monocotyledoneae and 20 dicotyledoneae. Seed bank and standing vegetation share 18 out of 49 known species and their similarity is 54% (Sorensen index). The seeds have an aggregate distribution, therefore the bank is very heterogeneous.

ASSUNTO(S)

argentina pastagem pampa banco de sementes padrao espacial

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