A new method for evaluating Net Aboveground Primary Production (NAPP) of Scirpus giganteus (Kunth)

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In this work, we propose a new tagging technique to evaluate NAPP in Scirpus giganteus (bulrush), a species commonly found in freshwater marshes of South America. Through this method, a total mean NAPP of 1514.12 ± 305.11 g m-2 year-1 (C.V.= 20%) was obtained by a combination of tagging and harvesti...

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Autores principales: Pratolongo, P., Vicari, R., Kandus, P., Malvárez, I.
Formato: JOUR
Materias:
Bulrush
Freshwater marsh
Primary production
Scirpus giganteus
Tagging technique
aboveground biomass
marsh
methodology
net primary production
South America
Western Hemisphere
World
Scirpus
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_02775212_v25_n1_p228_Pratolongo
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_02775212_v25_n1_p228_Pratolongo
record_format dspace
spelling todo:paper_02775212_v25_n1_p228_Pratolongo2023-10-03T15:16:05Z A new method for evaluating Net Aboveground Primary Production (NAPP) of Scirpus giganteus (Kunth) Pratolongo, P. Vicari, R. Kandus, P. Malvárez, I. Bulrush Freshwater marsh Primary production Scirpus giganteus Tagging technique aboveground biomass marsh methodology net primary production South America Western Hemisphere World Scirpus In this work, we propose a new tagging technique to evaluate NAPP in Scirpus giganteus (bulrush), a species commonly found in freshwater marshes of South America. Through this method, a total mean NAPP of 1514.12 ± 305.11 g m-2 year-1 (C.V.= 20%) was obtained by a combination of tagging and harvesting entire mats. A maximum living biomass of 1063.60 ± 362.06 g m-2 (C.V.= 34%) was registered in February (late summer), which would be the estimation of the total annual NAPP using the traditional peak standing crop method and gives an underestimation of NAPP because it neither considers mortality before the peak biomass is attained, nor does it include any production after peak. As there are no statistically significant changes in the mean living biomass on different sampling dates (df=9, F=2.22, p>0.10), which is an expected situation in a species that grows through the whole year, methods based on changes in living and dead biomass are difficult to apply. The proposed tagging method gives an estimate of NAPP for a species on which more widely used procedures cannot be applied. Moreover, the tagging technique may be applicable for a great number of emergent wetland plants showing similar growth forms. © 2005, The Society of Wetland Scientists. Fil:Pratolongo, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Kandus, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Malvárez, I. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_02775212_v25_n1_p228_Pratolongo
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Bulrush
Freshwater marsh
Primary production
Scirpus giganteus
Tagging technique
aboveground biomass
marsh
methodology
net primary production
South America
Western Hemisphere
World
Scirpus
spellingShingle Bulrush
Freshwater marsh
Primary production
Scirpus giganteus
Tagging technique
aboveground biomass
marsh
methodology
net primary production
South America
Western Hemisphere
World
Scirpus
Pratolongo, P.
Vicari, R.
Kandus, P.
Malvárez, I.
A new method for evaluating Net Aboveground Primary Production (NAPP) of Scirpus giganteus (Kunth)
topic_facet Bulrush
Freshwater marsh
Primary production
Scirpus giganteus
Tagging technique
aboveground biomass
marsh
methodology
net primary production
South America
Western Hemisphere
World
Scirpus
description In this work, we propose a new tagging technique to evaluate NAPP in Scirpus giganteus (bulrush), a species commonly found in freshwater marshes of South America. Through this method, a total mean NAPP of 1514.12 ± 305.11 g m-2 year-1 (C.V.= 20%) was obtained by a combination of tagging and harvesting entire mats. A maximum living biomass of 1063.60 ± 362.06 g m-2 (C.V.= 34%) was registered in February (late summer), which would be the estimation of the total annual NAPP using the traditional peak standing crop method and gives an underestimation of NAPP because it neither considers mortality before the peak biomass is attained, nor does it include any production after peak. As there are no statistically significant changes in the mean living biomass on different sampling dates (df=9, F=2.22, p>0.10), which is an expected situation in a species that grows through the whole year, methods based on changes in living and dead biomass are difficult to apply. The proposed tagging method gives an estimate of NAPP for a species on which more widely used procedures cannot be applied. Moreover, the tagging technique may be applicable for a great number of emergent wetland plants showing similar growth forms. © 2005, The Society of Wetland Scientists.
format JOUR
author Pratolongo, P.
Vicari, R.
Kandus, P.
Malvárez, I.
author_facet Pratolongo, P.
Vicari, R.
Kandus, P.
Malvárez, I.
author_sort Pratolongo, P.
title A new method for evaluating Net Aboveground Primary Production (NAPP) of Scirpus giganteus (Kunth)
title_short A new method for evaluating Net Aboveground Primary Production (NAPP) of Scirpus giganteus (Kunth)
title_full A new method for evaluating Net Aboveground Primary Production (NAPP) of Scirpus giganteus (Kunth)
title_fullStr A new method for evaluating Net Aboveground Primary Production (NAPP) of Scirpus giganteus (Kunth)
title_full_unstemmed A new method for evaluating Net Aboveground Primary Production (NAPP) of Scirpus giganteus (Kunth)
title_sort new method for evaluating net aboveground primary production (napp) of scirpus giganteus (kunth)
url http://hdl.handle.net/20.500.12110/paper_02775212_v25_n1_p228_Pratolongo
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