Data/hora: 18/06/2024 10:35:37

Biblioteca(s): | Epagri-Sede.
Data corrente: | 13/09/2016
Data da última atualização: | 13/09/2016
Autoria: | PINTO, C. E.; BALDISSERA, T. C.; GARAGORRY, F. C.; COSTA JÚNIOR, N. B.; CAMPESTRINI, S.; TREVISAN, R.
Título: | Phytosociology of natural and naturalized pastures in Santa Catarina highlands.
Ano de publicação: | 2016
Fonte/Imprenta: | In: REUNIÃO ANUAL SOCIEDADE BRASILEIRA DE ZOOTECNIA, 53., 2016, Gramado, RS. Resumos... Porto Alegre, RS: SBZ, 2016.
Idioma: | Inglês

Conteúdo:

The natural pastures constitute the main forage substrate in Santa Catarina highlands. Presents an
inestimable environmental importance value due to the the diverse number of grasses and
legumes species. Despite the importance of the natural pastures, few studies exists about
phytosociology on this region. The aim of the study was characterize the plant community of
natural pastures in the municipalities of Lages, São Joaquim, Painel, Capão Alto and Bom
Jardim da Serra, and in a naturalized pasture in São José do Cerrito. It was evaluated the
phytosociology in a ranch property of each municipality to represent the local physiognomy.
Five sample units (SU) of 1 m² were established in each local in January 2014. It was calculated
the values of species presence/absence, absolute percentage of soil coverage and relative
coverage. The Shannon Index was calculated using software "R" (vegan package). The survey
identified 173 species, the greater species richness were observed in Lages and Capão Alto with
30 species / SU, Bom Jardim da Serra and Painel presented 28 species / SU, São Joaquim
presented 24 species / SU. The lowest richness with 13 species / UA was observed in a
naturalized pasture in municipality of São José do Cerrito. Shannon diversity index for Lages
was 2,885, Capão Alto 2,830, Bom Jardim da Serra presented an index of 2,781, Painel 2,834,
São Joaquim was 2,640, and finally, São José do Cerrito was 1,930. There was an equitable
distribution among species, with a low percentage of relative soil coverage of each specie. The
species: Baccharis crispa Spreng., Paspalum plicatulum Michx., Piptochaetium montevidense
(Spreng.) Parodi, Gamochaeta americana (Mill.) Wedd., Schizachyrium tenerum Nees,
Chevreulia sarmentosa (Pers.) Blake, Axonopus compressus (Sw.) P. Beauv., Baccharis
pentodonta Malme, Eragrostis polytricha Nees; and Paspalum notatum Flu&#776;ggé; composes an
absolute soil coverage of 22.51%. There was 2.88% of uncovered soil, and 3.53% of dead
material. The natural pastures of the Santa Catarina hightlands in different locals presented
similar diversities, while naturalized pastures presents a lower diversity index and richness.

Palavras-Chave: | cattle; diversity index; floristic diversity.
Categoria do assunto: | L Ciência Animal e Produtos de Origem Animal
URL: | http://intranetdoc.epagri.sc.gov.br/producao_tecnico_cientifica/DOC_38256.pdf
Registro original: | Epagri-Sede (Epagri-Sede)
Exemplares: | Epagri-Sede - (100474-1) - UPC - PL - DD -  -  -  - DIS