Análise fractal do padrão espacial de plantas em pastagem
| Autor: | Guilherme Ebling Rossi, F.L.F. Quadros, C.E.N. Martins, F. C. Garagorry |
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| Přispěvatelé: | C. E. N. Martins, IFC, F. L. F. Quadros, UFSM, FABIO CERVO GARAGORRY, CPPSUL, G. E. Rossi, UFSM. |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Arquivo Brasileiro de Medicina Veterinária e Zootecnia, Vol 72, Iss 2, Pp 590-598 (2020) Arquivo Brasileiro de Medicina Veterinária e Zootecnia v.72 n.2 2020 Arquivo brasileiro de medicina veterinária e zootecnia Universidade Federal de Minas Gerais (UFMG) instacron:UFMG Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA-Alice) Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
| ISSN: | 1678-4162 |
| Popis: | The use of fractal analysis was evaluated as a tool in the determination of grazing patterns in natural grasslands submitted to different managements. The treatments tested in Santa Maria were grazing with burning, grazing without burning, exclusion with burning and exclusion without burning. In Bagé, the evaluated treatments were natural pasture and introduction of ryegrass, white clover and birdsfoot trefoil in a natural grassland. The characterization of the floristic composition of the pasture was performed by the BOTANAL method. The pasture diversity was calculated by Shannon (H') and Evenness (J) indexes. The fractal dimension information was calculated by regression between H'(ε) and ε natural algorithm, with the line?s slope being the fractal dimension information. Shannon and Evenness indexes showed dependence on the sample area, where the highest floristic diversity and homogeneity of the distribution frequency of plants between species were observed in the sample range of 0.87 to 1.03m2. The fractal dimension can be a tool in determining patterns in the plant community on the reduced grazing scale. The limitation of the use of this technique for reduced scales is the need for a greater number of repetitions.Keywords: burn, diversity, evenness, grazing, shannon Made available in DSpace on 2020-12-08T09:08:13Z (GMT). No. of bitstreams: 1 Martins-et-al-2020.pdf: 832425 bytes, checksum: 649f50f92207e133d2a03fb21fc5ed75 (MD5) Previous issue date: 2020 |
| Databáze: | OpenAIRE |
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