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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sul. Para informações adicionais entre em contato com cppsul.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sul. |
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Data corrente: |
23/09/2021 |
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Data da última atualização: |
23/09/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BOAVISTA, L. da R.; TRINDADE, J. P. P.; OVERBECK, G. E.; MÜLLER, S. C. |
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Afiliação: |
LIDIANE DA ROSA BOAVISTA, UFRGS; JOSE PEDRO PEREIRA TRINDADE, CPPSUL; GERHARD ERNST OVERBECK, UFRGS; SANDRA CRISTINA MÜLLER, UFRGS. |
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Título: |
Effects of grazing regimes on the temporal dynamics of grassland communities. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Applied Vegetation Science, v. 22, n. 2, p. 326-335, Apr. 2019. |
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Idioma: |
Inglês |
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Conteúdo: |
Questions: Grazing management influences grassland community dynamics, but few studies exist on the effects of specific management regimes in subtropical grass- lands. Here, we ask how rotational and continuous grazing influences the composi- tion, diversity, and biomass production of natural grasslands in southern Brazil. Location: The study was conducted at four cattle farms within the south Brazilian grassland region (Campos Sulinos), in the upper area of the Camaquã river basin of Rio Grande do Sul, Brazil. Methods: On each farm, grassland that had previously been subjected to continuous grazing (freely grazed by cattle) was divided into two experimental units; one man- aged by rotational grazing and the other maintained under continuous grazing. In each experimental unit, 14 permanent plots were monitored over six years for spe- cies composition and species biomass. Data were analyzed using linear mixed models to evaluate the effects of grazing management strategies on composition dissimilar- ity, diversity indices, and plant biomass. Results: Grasslands under a rotational grazing regime changed steadily over the period of evaluation. Total biomass and species distribution patterns greatly differed from those in plots subjected to continuous grazing, leading to changes in species richness, dominance, and composition, as well as to an increase in overall plant biomass. Conclusions: Community changes during the six- year study period as a consequence of the distinct grazing treatments were evident. Grasslands under rotational grazing management benefitted from less selective grazing, enabling a more uniform growth of species within the communities, which in turn were richer at the end of the six- year experiment. In contrast, the proportion of grazing- resistant species or less- consumed species was higher under continuous grazing, where foraging by cattle appears to be more selective. Rotational grazing thus not only leads to higher species richness and diversity, but also to higher primary and, in consequence, secondary productivity MenosQuestions: Grazing management influences grassland community dynamics, but few studies exist on the effects of specific management regimes in subtropical grass- lands. Here, we ask how rotational and continuous grazing influences the composi- tion, diversity, and biomass production of natural grasslands in southern Brazil. Location: The study was conducted at four cattle farms within the south Brazilian grassland region (Campos Sulinos), in the upper area of the Camaquã river basin of Rio Grande do Sul, Brazil. Methods: On each farm, grassland that had previously been subjected to continuous grazing (freely grazed by cattle) was divided into two experimental units; one man- aged by rotational grazing and the other maintained under continuous grazing. In each experimental unit, 14 permanent plots were monitored over six years for spe- cies composition and species biomass. Data were analyzed using linear mixed models to evaluate the effects of grazing management strategies on composition dissimilar- ity, diversity indices, and plant biomass. Results: Grasslands under a rotational grazing regime changed steadily over the period of evaluation. Total biomass and species distribution patterns greatly differed from those in plots subjected to continuous grazing, leading to changes in species richness, dominance, and composition, as well as to an increase in overall plant biomass. Conclusions: Community changes during the six- year study period as a consequence of the distinct grazi... Mostrar Tudo |
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Thesagro: |
Manejo; Pastagem; Pastejo. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02636naa a2200193 a 4500
001 2134724
005 2021-09-23
008 2019 bl uuuu u00u1 u #d
100 1 $aBOAVISTA, L. da R.
245 $aEffects of grazing regimes on the temporal dynamics of grassland communities.$h[electronic resource]
260 $c2019
520 $aQuestions: Grazing management influences grassland community dynamics, but few studies exist on the effects of specific management regimes in subtropical grass- lands. Here, we ask how rotational and continuous grazing influences the composi- tion, diversity, and biomass production of natural grasslands in southern Brazil. Location: The study was conducted at four cattle farms within the south Brazilian grassland region (Campos Sulinos), in the upper area of the Camaquã river basin of Rio Grande do Sul, Brazil. Methods: On each farm, grassland that had previously been subjected to continuous grazing (freely grazed by cattle) was divided into two experimental units; one man- aged by rotational grazing and the other maintained under continuous grazing. In each experimental unit, 14 permanent plots were monitored over six years for spe- cies composition and species biomass. Data were analyzed using linear mixed models to evaluate the effects of grazing management strategies on composition dissimilar- ity, diversity indices, and plant biomass. Results: Grasslands under a rotational grazing regime changed steadily over the period of evaluation. Total biomass and species distribution patterns greatly differed from those in plots subjected to continuous grazing, leading to changes in species richness, dominance, and composition, as well as to an increase in overall plant biomass. Conclusions: Community changes during the six- year study period as a consequence of the distinct grazing treatments were evident. Grasslands under rotational grazing management benefitted from less selective grazing, enabling a more uniform growth of species within the communities, which in turn were richer at the end of the six- year experiment. In contrast, the proportion of grazing- resistant species or less- consumed species was higher under continuous grazing, where foraging by cattle appears to be more selective. Rotational grazing thus not only leads to higher species richness and diversity, but also to higher primary and, in consequence, secondary productivity
650 $aManejo
650 $aPastagem
650 $aPastejo
700 1 $aTRINDADE, J. P. P.
700 1 $aOVERBECK, G. E.
700 1 $aMÜLLER, S. C.
773 $tApplied Vegetation Science$gv. 22, n. 2, p. 326-335, Apr. 2019.
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Registro original: |
Embrapa Pecuária Sul (CPPSUL) |
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Biblioteca |
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Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
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Status |
URL |
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Registro Completo
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
17/01/2013 |
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Data da última atualização: |
23/05/2023 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
SANTOS, C. V. B. dos; MOURA, M. S. B. de; SOUZA, L. S. B. de. |
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Afiliação: |
CLOVES VILAS BOAS DOS SANTOS; MAGNA SOELMA BESERRA DE MOURA, CPATSA; LUCIANA SANDRA BASTOS DE SOUZA. |
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Título: |
Efeitos do aumento da temperatura no balanço hídrico climatológico do município de Ribeira do Pombal-BA. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
In: MOSTRA DE PESQUISAS DA UPE, 4., 2012, Petrolina. Resumos simples e expandidos... Petrolina: Universidade de Pernambuco, Campus de Petrolina, 2012. |
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Descrição Física: |
1 CD-ROM. |
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Idioma: |
Português |
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Conteúdo: |
O objetivo deste trabalho foi analisar as alterações no balanço hídrico climatológico para o município de Ribeira do Pombal, BA, ocasionadas pelo aumento da temperatura média do a |
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Palavras-Chave: |
Aumento de temperatura; Disponibilidade hídrica; Natural resource. |
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Thesagro: |
Balanço Hídrico; Clima; Evapotranspiração; Recurso natural. |
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Thesaurus NAL: |
Natural resources. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/74499/1/Magna-2012.pdf
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Marc: |
LEADER 01020nam a2200241 a 4500
001 1945569
005 2023-05-23
008 2012 bl uuuu u00u1 u #d
100 1 $aSANTOS, C. V. B. dos
245 $aEfeitos do aumento da temperatura no balanço hídrico climatológico do município de Ribeira do Pombal-BA.
260 $aIn: MOSTRA DE PESQUISAS DA UPE, 4., 2012, Petrolina. Resumos simples e expandidos... Petrolina: Universidade de Pernambuco, Campus de Petrolina$c2012
300 $c1 CD-ROM.
520 $aO objetivo deste trabalho foi analisar as alterações no balanço hídrico climatológico para o município de Ribeira do Pombal, BA, ocasionadas pelo aumento da temperatura média do a
650 $aNatural resources
650 $aBalanço Hídrico
650 $aClima
650 $aEvapotranspiração
650 $aRecurso natural
653 $aAumento de temperatura
653 $aDisponibilidade hídrica
653 $aNatural resource
700 1 $aMOURA, M. S. B. de
700 1 $aSOUZA, L. S. B. de
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