Effect of fire under the soils on the organization of communities of three remnants of Amazonian savannas
ABSTRACT Areas of cerrado (Brazilian savanna) in the Amazon have been poorly studied from the perspective of fire impacts on environmental sustainability, especially with regard to disturbances to soil and vegetation structure. This study aimed to analyze the influence of edaphic variables and fire...
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| Format: | Article |
| Language: | English |
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Sociedade Botânica do Brasil
2020-10-01
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| Series: | Acta Botânica Brasílica |
| Subjects: | |
| Online Access: | http://www.scielo.br/pdf/abb/v34n3/0102-3306-abb-0102-33062019abb0399.pdf |
| _version_ | 1798026311723122688 |
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| author | Ronaldo Oliveira dos Santos Alan Pena de Souza Rubiene Neto Soares Fernando Galvão Rabelo Breno Marques da Silva e Silva Salustiano Vilar da Costa Neto |
| author_facet | Ronaldo Oliveira dos Santos Alan Pena de Souza Rubiene Neto Soares Fernando Galvão Rabelo Breno Marques da Silva e Silva Salustiano Vilar da Costa Neto |
| author_sort | Ronaldo Oliveira dos Santos |
| collection | DOAJ |
| description | ABSTRACT Areas of cerrado (Brazilian savanna) in the Amazon have been poorly studied from the perspective of fire impacts on environmental sustainability, especially with regard to disturbances to soil and vegetation structure. This study aimed to analyze the influence of edaphic variables and fire together on the composition and structure of tree and shrub vegetation of three cerrado remnants in the Amazon. Eight plots were systematically installed in burned and unburned environments in each remnant. Data were submitted to floristic diversity, similarity, and diametric and altimetric structural assessments. Phytosociological parameters were obtained and submitted to Principal Component Analysis (PCA) and Canonical Correspondence Analysis (CCA). A total of 808 individuals (34 species, 30 genera, and 21 families) were recorded. The CCA indicated that the distribution of species is influenced by edaphic factors, as confirmed by the strong direct correlation of tree and shrub species with the reduced nutrition and high acidity of the soils common in the analyzed remnants. Our results support the hypothesis that fire plays a relevant role in structuring vegetation since it contributed to good indicators of soil properties and caused changes in the composition of woody species. |
| first_indexed | 2024-04-11T18:33:15Z |
| format | Article |
| id | doaj.art-907c8070afd0469dbce80031042d113c |
| institution | Directory Open Access Journal |
| issn | 1677-941X |
| language | English |
| last_indexed | 2024-04-11T18:33:15Z |
| publishDate | 2020-10-01 |
| publisher | Sociedade Botânica do Brasil |
| record_format | Article |
| series | Acta Botânica Brasílica |
| spelling | doaj.art-907c8070afd0469dbce80031042d113c2022-12-22T04:09:22ZengSociedade Botânica do BrasilActa Botânica Brasílica1677-941X2020-10-0134350552110.1590/0102-33062019abb0399Effect of fire under the soils on the organization of communities of three remnants of Amazonian savannasRonaldo Oliveira dos Santoshttps://orcid.org/0000-0002-8606-6515Alan Pena de Souzahttps://orcid.org/0000-0002-3119-1052Rubiene Neto Soareshttps://orcid.org/0000-0001-8159-4389Fernando Galvão Rabelohttps://orcid.org/0000-0003-2311-5428Breno Marques da Silva e Silvahttps://orcid.org/0000-0003-0031-1450Salustiano Vilar da Costa Netohttps://orcid.org/0000-0002-1459-3658ABSTRACT Areas of cerrado (Brazilian savanna) in the Amazon have been poorly studied from the perspective of fire impacts on environmental sustainability, especially with regard to disturbances to soil and vegetation structure. This study aimed to analyze the influence of edaphic variables and fire together on the composition and structure of tree and shrub vegetation of three cerrado remnants in the Amazon. Eight plots were systematically installed in burned and unburned environments in each remnant. Data were submitted to floristic diversity, similarity, and diametric and altimetric structural assessments. Phytosociological parameters were obtained and submitted to Principal Component Analysis (PCA) and Canonical Correspondence Analysis (CCA). A total of 808 individuals (34 species, 30 genera, and 21 families) were recorded. The CCA indicated that the distribution of species is influenced by edaphic factors, as confirmed by the strong direct correlation of tree and shrub species with the reduced nutrition and high acidity of the soils common in the analyzed remnants. Our results support the hypothesis that fire plays a relevant role in structuring vegetation since it contributed to good indicators of soil properties and caused changes in the composition of woody species.http://www.scielo.br/pdf/abb/v34n3/0102-3306-abb-0102-33062019abb0399.pdfamazon savannasPCACCAsoil propertiesphytosociological analysis |
| spellingShingle | Ronaldo Oliveira dos Santos Alan Pena de Souza Rubiene Neto Soares Fernando Galvão Rabelo Breno Marques da Silva e Silva Salustiano Vilar da Costa Neto Effect of fire under the soils on the organization of communities of three remnants of Amazonian savannas Acta Botânica Brasílica amazon savannas PCA CCA soil properties phytosociological analysis |
| title | Effect of fire under the soils on the organization of communities of three remnants of Amazonian savannas |
| title_full | Effect of fire under the soils on the organization of communities of three remnants of Amazonian savannas |
| title_fullStr | Effect of fire under the soils on the organization of communities of three remnants of Amazonian savannas |
| title_full_unstemmed | Effect of fire under the soils on the organization of communities of three remnants of Amazonian savannas |
| title_short | Effect of fire under the soils on the organization of communities of three remnants of Amazonian savannas |
| title_sort | effect of fire under the soils on the organization of communities of three remnants of amazonian savannas |
| topic | amazon savannas PCA CCA soil properties phytosociological analysis |
| url | http://www.scielo.br/pdf/abb/v34n3/0102-3306-abb-0102-33062019abb0399.pdf |
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