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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sul. |
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Data corrente: |
17/09/2021 |
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Data da última atualização: |
17/09/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ZANELLA, P. G.; DELLA GIUSTINA JUNIOR, L. H. P.; PINTO, C. E.; BALDISSERA, T. C.; WERNER, S. S.; GARAGORRY, F. C.; JAURENA, M.; LATTANZI, F. A.; SBRISSIA, A. F. |
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Afiliação: |
PABLO GILIARD ZANELLA, UDESC; LUIS HENRIQUE PAIM DELLA GIUSTINA JUNIOR, UDESC; CASSIANO EDUARDO PINTO, EPAGRI; TIAGO CELSO BALDISSERA, EPAGRI; SIMONE SILMARA WERNER, EPAGRI; FABIO CERVO GARAGORRY, CPPSUL; MARTÍN JAURENA, INIA; FERNANDO ALFREDO LATTANZI, INIA; ANDRÉ FISCHER SBRISSIA, UDESC. |
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Título: |
Grazing intensity drives plant diversity but does not affect forage production in a natural grassland dominated by the tussock-forming grass Andropogon lateralis Nees. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Scientific Reports, v. 11, n. 1, 16744 Aug. 2021. |
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DOI: |
10.1038/s41598-021-96208-8 |
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Idioma: |
Inglês |
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Conteúdo: |
Andropogon lateralis is a tall and highly plastic tussock-forming grass native from southern South America. It is a frequent component of Campos and Subtropical highland grasslands that often becomes dominant under lax grazing regimes. The aim of this work was to analyze the response of species diversity and forage production of a natural grassland dominated by A. lateralis to a wide range of grazing intensity. We hypothesized that species diversity and forage production would both peak at the intermediate canopy heights determined by grazing regimes of moderate intensity. A grazing experiment was conducted in a highland grassland with mesothermal humid climate at 922 masl (Atlantic Forest biome, Santa Catarina state, Brazil) that comprised 87 species from 20 families but had 50% of its standing biomass accounted by A. lateralis. Four pre-/post-grazing canopy heights-12/7, 20/12, 28/17, and 36/22 cm (measured on A. lateralis)-were arranged in a complete randomized block design with four replications, and intermittently stocked with beef heifers from October 2015 to October 2017. Andropogon lateralis cover decreased (from 75 to 50%), and species richness increased (15-25 species m(-2)) as canopy height decreased. Grazing intensity did not affect annual forage production (4.2 Mg DM ha(-1)). This natural grassland dominated by A. lateralis had a high capacity to adjust to grazing regimes of contrasting intensity, maintaining forage production stable over a wide range of canopy heights. However, to prevent losses in floristic diversity, such grassland should not be grazed at canopy heights higher than 28 cm. MenosAndropogon lateralis is a tall and highly plastic tussock-forming grass native from southern South America. It is a frequent component of Campos and Subtropical highland grasslands that often becomes dominant under lax grazing regimes. The aim of this work was to analyze the response of species diversity and forage production of a natural grassland dominated by A. lateralis to a wide range of grazing intensity. We hypothesized that species diversity and forage production would both peak at the intermediate canopy heights determined by grazing regimes of moderate intensity. A grazing experiment was conducted in a highland grassland with mesothermal humid climate at 922 masl (Atlantic Forest biome, Santa Catarina state, Brazil) that comprised 87 species from 20 families but had 50% of its standing biomass accounted by A. lateralis. Four pre-/post-grazing canopy heights-12/7, 20/12, 28/17, and 36/22 cm (measured on A. lateralis)-were arranged in a complete randomized block design with four replications, and intermittently stocked with beef heifers from October 2015 to October 2017. Andropogon lateralis cover decreased (from 75 to 50%), and species richness increased (15-25 species m(-2)) as canopy height decreased. Grazing intensity did not affect annual forage production (4.2 Mg DM ha(-1)). This natural grassland dominated by A. lateralis had a high capacity to adjust to grazing regimes of contrasting intensity, maintaining forage production stable over a wide range of canopy ... Mostrar Tudo |
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Thesagro: |
Campo; Capim Andropogon; Forragem; Pastagem Natural. |
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Categoria do assunto: |
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Marc: |
LEADER 02522naa a2200277 a 4500
001 2134536
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024 7 $a10.1038/s41598-021-96208-8$2DOI
100 1 $aZANELLA, P. G.
245 $aGrazing intensity drives plant diversity but does not affect forage production in a natural grassland dominated by the tussock-forming grass Andropogon lateralis Nees.$h[electronic resource]
260 $c2021
520 $aAndropogon lateralis is a tall and highly plastic tussock-forming grass native from southern South America. It is a frequent component of Campos and Subtropical highland grasslands that often becomes dominant under lax grazing regimes. The aim of this work was to analyze the response of species diversity and forage production of a natural grassland dominated by A. lateralis to a wide range of grazing intensity. We hypothesized that species diversity and forage production would both peak at the intermediate canopy heights determined by grazing regimes of moderate intensity. A grazing experiment was conducted in a highland grassland with mesothermal humid climate at 922 masl (Atlantic Forest biome, Santa Catarina state, Brazil) that comprised 87 species from 20 families but had 50% of its standing biomass accounted by A. lateralis. Four pre-/post-grazing canopy heights-12/7, 20/12, 28/17, and 36/22 cm (measured on A. lateralis)-were arranged in a complete randomized block design with four replications, and intermittently stocked with beef heifers from October 2015 to October 2017. Andropogon lateralis cover decreased (from 75 to 50%), and species richness increased (15-25 species m(-2)) as canopy height decreased. Grazing intensity did not affect annual forage production (4.2 Mg DM ha(-1)). This natural grassland dominated by A. lateralis had a high capacity to adjust to grazing regimes of contrasting intensity, maintaining forage production stable over a wide range of canopy heights. However, to prevent losses in floristic diversity, such grassland should not be grazed at canopy heights higher than 28 cm.
650 $aCampo
650 $aCapim Andropogon
650 $aForragem
650 $aPastagem Natural
700 1 $aDELLA GIUSTINA JUNIOR, L. H. P.
700 1 $aPINTO, C. E.
700 1 $aBALDISSERA, T. C.
700 1 $aWERNER, S. S.
700 1 $aGARAGORRY, F. C.
700 1 $aJAURENA, M.
700 1 $aLATTANZI, F. A.
700 1 $aSBRISSIA, A. F.
773 $tScientific Reports$gv. 11, n. 1, 16744 Aug. 2021.
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Registro original: |
Embrapa Pecuária Sul (CPPSUL) |
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