Changes in biomass and structure after a fire in Spartina densiflora brong marshes on the floodplain of the Paraná River, Argentina
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...
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2010
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15351459_v26_n3_p297_Vicari http://hdl.handle.net/20.500.12110/paper_15351459_v26_n3_p297_Vicari |
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paper:paper_15351459_v26_n3_p297_Vicari2023-06-08T16:20:04Z Changes in biomass and structure after a fire in Spartina densiflora brong marshes on the floodplain of the Paraná River, Argentina Fischer, Sylvia Cristina Madanes, Nora 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 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. Fil:Fischer, S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Madanes, N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2010 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15351459_v26_n3_p297_Vicari http://hdl.handle.net/20.500.12110/paper_15351459_v26_n3_p297_Vicari |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
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 |
| spellingShingle |
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 Fischer, Sylvia Cristina Madanes, Nora Changes in biomass and structure after a fire in Spartina densiflora brong marshes on the floodplain of the Paraná River, Argentina |
| topic_facet |
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 |
| description |
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. |
| author |
Fischer, Sylvia Cristina Madanes, Nora |
| author_facet |
Fischer, Sylvia Cristina Madanes, Nora |
| author_sort |
Fischer, Sylvia Cristina |
| title |
Changes in biomass and structure after a fire in Spartina densiflora brong marshes on the floodplain of the Paraná River, Argentina |
| title_short |
Changes in biomass and structure after a fire in Spartina densiflora brong marshes on the floodplain of the Paraná River, Argentina |
| title_full |
Changes in biomass and structure after a fire in Spartina densiflora brong marshes on the floodplain of the Paraná River, Argentina |
| title_fullStr |
Changes in biomass and structure after a fire in Spartina densiflora brong marshes on the floodplain of the Paraná River, Argentina |
| title_full_unstemmed |
Changes in biomass and structure after a fire in Spartina densiflora brong marshes on the floodplain of the Paraná River, Argentina |
| title_sort |
changes in biomass and structure after a fire in spartina densiflora brong marshes on the floodplain of the paraná river, argentina |
| publishDate |
2010 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15351459_v26_n3_p297_Vicari http://hdl.handle.net/20.500.12110/paper_15351459_v26_n3_p297_Vicari |
| work_keys_str_mv |
AT fischersylviacristina changesinbiomassandstructureafterafireinspartinadensiflorabrongmarshesonthefloodplainoftheparanariverargentina AT madanesnora changesinbiomassandstructureafterafireinspartinadensiflorabrongmarshesonthefloodplainoftheparanariverargentina |
| _version_ |
1768544974058553344 |