Celtis tala Planchon (Ulmaceae s. l.) seedling establishment on contrasting soils and microdisturbances: A greenhouse trial concerning adults' field distribution pattern
Celtis tala Planchon (Ulmaceae s. l.) forests of the 'Parque Costero del Sur' Biosphere Reserve, Argentina, occupy old calcareous shore-banks subparallel to the Rio de la Plata river. Previous studies showed that the density of C. tala adults in coastal banks is lower than in inner banks....
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1996
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03672530_v191_n4_p321_Ribichich http://hdl.handle.net/20.500.12110/paper_03672530_v191_n4_p321_Ribichich |
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| Sumario: | Celtis tala Planchon (Ulmaceae s. l.) forests of the 'Parque Costero del Sur' Biosphere Reserve, Argentina, occupy old calcareous shore-banks subparallel to the Rio de la Plata river. Previous studies showed that the density of C. tala adults in coastal banks is lower than in inner banks. A greenhouse trial was used to study the relationship between possible edaphic constraints and seedling establishment, with the purpose of relating results to adults' pattern. 'Soil's provenance' and 'simulation of animals' digging activity' were used as experimental factors. Emergence, establishment and survivorship of seedlings were evaluated within a factorial design. Contrary to expectations, regeneration processes were not disfavoured but even enhanced by the edaphic conditions characterizing coastal banks. Alternative hypotheses about causes of C. tala adults' pattern are suggested. |
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