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We examined the responses of a Spartina densiflora (Poaceae) marsh to an accidental summer fire taking place in the Otamendi Natural Reserve (Argentina). Green, standing dead, reproductive and litter fractions of S. densiflora, as well as forbs biomass were determined before and after burning using randomly selected quadrates. Fire reduced most of the aboveground biomass of the green, standing dead and litter fractions of S. densiflora. Green biomass attained higher values before the fire as compared to those from the first year after burning during the spring, while the second year spring attained intermediate values. The standing dead material represented the main fraction of S. densiflora biomass in the pre-fire period, and after burning, this fraction reappeared in autumn, 4 months after the fire. The litter showed zero values throughout the first 16 months after the fire, and reappeared at end of the second winter. The flower biomass was exclusively recorded on late summer and showed relatively low values. Seedling recruitment of S. densiflora was not observed throughout the study period. Forbs biomass showed large fluctuations both before and after fire and highest forbs biomass values were observed during the spring before fire, and at end of summer 1 year after the fire. Although the results of the present study showed a tendency towards the original structure, most of the biomass fractions did not reach values similar to those before the fire after 2 years of post-fire growing, suggesting that a longer recovering time is expected. © 2009 John Wiley & Sons, Ltd.


Documento: Artículo
Título:Changes in biomass and structure after a fire in Spartina densiflora brong marshes on the floodplain of the Paraná River, Argentina
Autor:Vicari, R.; Fischer, S.; Madanes, N.; Bonaventura, S.M.
Filiación:Departamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón II, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina
Palabras clave:Biomass; Fire; Salt-marshes; Spartina densiflora; aboveground biomass; burning; fire; floodplain; flora; grass; litter; saltmarsh; summer; Argentina; Buenos Aires [Argentina]; Otamendi Natural Reserve; Parana River; Poaceae; Spartina densiflora
Página de inicio:297
Página de fin:304
Título revista:River Research and Applications
Título revista abreviado:River Res. Appl.


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---------- APA ----------
Vicari, R., Fischer, S., Madanes, N. & Bonaventura, S.M. (2010) . Changes in biomass and structure after a fire in Spartina densiflora brong marshes on the floodplain of the Paraná River, Argentina. River Research and Applications, 26(3), 297-304.
---------- CHICAGO ----------
Vicari, R., Fischer, S., Madanes, N., Bonaventura, S.M. "Changes in biomass and structure after a fire in Spartina densiflora brong marshes on the floodplain of the Paraná River, Argentina" . River Research and Applications 26, no. 3 (2010) : 297-304.
---------- MLA ----------
Vicari, R., Fischer, S., Madanes, N., Bonaventura, S.M. "Changes in biomass and structure after a fire in Spartina densiflora brong marshes on the floodplain of the Paraná River, Argentina" . River Research and Applications, vol. 26, no. 3, 2010, pp. 297-304.
---------- VANCOUVER ----------
Vicari, R., Fischer, S., Madanes, N., Bonaventura, S.M. Changes in biomass and structure after a fire in Spartina densiflora brong marshes on the floodplain of the Paraná River, Argentina. River Res. Appl. 2010;26(3):297-304.