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Titolo:
Edaphic patchiness influences grassland regeneration from the soil seed-bank in mountain grasslands of central Argentina
Autore:
Funes, G; Basconcelo, S; Diaz, S; Cabido, M;
Indirizzi:
CONICET, IMBIV, RA-5000 Cordoba, Argentina CONICET Cordoba Argentina RA-5000 CET, IMBIV, RA-5000 Cordoba, Argentina UNC, FCEF&N, Catedra Biogeog, Cordoba, Argentina UNC Cordoba ArgentinaUNC, FCEF&N, Catedra Biogeog, Cordoba, Argentina
Titolo Testata:
AUSTRAL ECOLOGY
fascicolo: 2, volume: 26, anno: 2001,
pagine: 205 - 212
SICI:
1442-9985(200104)26:2<205:EPIGRF>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Soggetto:
WATER TIDAL WETLAND; PLANT-COMMUNITIES; PERSISTENCE; DYNAMICS; RESTORATION; VEGETATION; STRATEGIES; MANAGEMENT; SUCCESSION; NUMBERS;
Keywords:
community regeneration; granite grasslands; persistent seed-banks; spatial heterogeneity; transient seed-banks;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
65
Recensione:
Indirizzi per estratti:
Indirizzo: Funes, G CONICET, IMBIV, Ave Velez Sarsfield 299,CC 495, RA-5000 Cordoba, Argentina CONICET Ave Velez Sarsfield 299,CC 495 Cordoba Argentina RA-5000
Citazione:
G. Funes et al., "Edaphic patchiness influences grassland regeneration from the soil seed-bank in mountain grasslands of central Argentina", AUSTRAL EC, 26(2), 2001, pp. 205-212

Abstract

The soil seed-banks in the main natural vegetation patches that make up mountain grasslands on granite substrates in central Argentina were studied. The main natural vegetation types are moist swards, tall-tussock grasslandsand stony grasslands. Ten compound soil samples from each community at twosoil depths (0-5 and 5-10 cm) were taken. The density of soil seed-banks was highest in moist swards, intermediate in stony grasslands and lowest in tall-tussock grasslands. Low levels of similarity were found between the established vegetation and total soil seed-bank in tall-tussock grasslands and stony grasslands, but the similarity was higher in swards. In all three communities the seed-bank was most frequently transient in nature. Short-term persistent and long-term persistent seed-banks were less frequent. Regeneration from the seed-banks after disturbance is expected to differ among communities on different edaphic patches. On the basis of the density and longevity of the soil seed-banks and the similarity to the established vegetation, potential for in situ regeneration should be lower in tall-tussock grasslands, intermediate in stony grasslands and higher in moist swards.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/03/20 alle ore 15:38:02