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vol.32 número3COMPORTAMENTO DE NOVILHAS PANTANEIRA E GIROLANDO CRIADAS EM PASTAGENS NAS QUATRO ESTAÇÕES DO ANODESENVOLVIMENTO INICIAL E TOLERÂNCIA DE ESPÉCIES DE PIMENTA AO ESTRESSE SALINO índice de autoresíndice de assuntospesquisa de artigos
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Revista Caatinga

versão impressa ISSN 0100-316Xversão On-line ISSN 1983-2125

Resumo

CONRADO, JEFTE ARNON DE ALMEIDA et al. FORAGE PRODUCTION AND PRESERVATION OF SPECIES BY ENRICHING CAATINGA WITH GRASSES AND THINNING AREAS INTO STRIPS. Rev. Caatinga [online]. 2019, vol.32, n.3, pp.814-825.  Epub 21-Out-2019. ISSN 1983-2125.  https://doi.org/10.1590/1983-21252019v32n326rc.

The objective of this study was to evaluate the thinning into strips and the enrichment with exotic grasses in a Caatinga area in order to maintain and increase the biodiversity of native vegetable species and forage production. Two studies were carried out-one in an area of Caatinga thinned into strips and one in an unmanipulated Caatinga area-during the rainy and rainy-dry season transition periods in 2016. The production of herbaceous biomass was evaluated, and the diversity and equability of the two areas were assessed through Shannon-Weaver (H’) and Pielou (J’) indexes. The establishment of massai and buffel grasses at the center and edges of the area thinned into strips was also evaluated. During the rainy season, the production of herbaceous biomass in the area thinned into strips and the unmanipulated area was 1,228 kg ha-1 and 833.33 kg ha-1, while during the rainy-dry transition period, it was 1,973 kg ha-1 and 836.00 kg ha-1, respectively. The indexes remained similar: H’ (1.86) and J’ (0.74) for the area thinned into strips, and H’ (1.77) and J’ (0.85) for the unmanipulated area. The massai grass presented better establishment and development than that by the buffel grass in the center and edges of the area thinned into strips. Thus, thinning into strips increases the biodiversity of an area, and this combined with enrichment through grasses increases the biomass of herbaceous forage.

Palavras-chave : Botanical composition; Massai grass; Buffel grass; Shading; Full sun exposure.

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