An Assessment of Water and Soil Losses in Pastures of the Brazilian Savana Using Simulated Rain
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng por |
Título da fonte: | Sociedade & natureza (Online) |
Texto Completo: | https://seer.ufu.br/index.php/sociedadenatureza/article/view/65618 |
Resumo: | Pastures occupy a large part of Brazilian national territory, being of heterogeneous characteristics and varying in climate, fertility, and management. Water erosion, generated by the action of rainfall, is a principal source of soil depletion. These soils exhibit distinct behaviors spatially and temporally. Therefore, this research aims to evaluate the water and soil losses in a pasture of the Cerrado region during two periods of the year (winter and summer) with the aim of understanding the hydro-geomorphological dynamic of the pastures in question. A rainfall simulator was calibrated at 64.34 mm/h, to replicate similar intensities to those of the study region, for 30 minutes (32.17 mm) over four erosion plots. Overall, the plots presented low water and sediment losses, with the largest runoff volumes in the summer and the highest erosion rates in winter. These results are connected to seasonal climate variations expressed in the region, which are reflected in the plant growth habits, generating alterations in the structural quality of the pastures. It follows that the return of the rainy season (winter-summer transition) represents a critical phase for the triggering of the erosive process. |
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An Assessment of Water and Soil Losses in Pastures of the Brazilian Savana Using Simulated RainAvaliação das Perdas de Água e Solo em Pastagem Inserida em Ambiente de Cerrado Brasileiro sob Chuva SimuladaErosãoConservação dos solosHidrogeomorfologiaSoil Erosion Soil conservation HydrogeomorphologyPastures occupy a large part of Brazilian national territory, being of heterogeneous characteristics and varying in climate, fertility, and management. Water erosion, generated by the action of rainfall, is a principal source of soil depletion. These soils exhibit distinct behaviors spatially and temporally. Therefore, this research aims to evaluate the water and soil losses in a pasture of the Cerrado region during two periods of the year (winter and summer) with the aim of understanding the hydro-geomorphological dynamic of the pastures in question. A rainfall simulator was calibrated at 64.34 mm/h, to replicate similar intensities to those of the study region, for 30 minutes (32.17 mm) over four erosion plots. Overall, the plots presented low water and sediment losses, with the largest runoff volumes in the summer and the highest erosion rates in winter. These results are connected to seasonal climate variations expressed in the region, which are reflected in the plant growth habits, generating alterations in the structural quality of the pastures. It follows that the return of the rainy season (winter-summer transition) represents a critical phase for the triggering of the erosive process.Pastagens ocupam extensas áreas do território nacional, as quais apresentam características heterogêneas que variam de acordo com o clima, fertilidade e manejo. A erosão hídrica gerada pela ação das chuvas se mostra como uma das principais fontes promotoras do depauperamento dos solos no Brasil, a qual também expõe comportamento distinto espacialmente e temporalmente. Deste modo, esta pesquisa tem por objetivo avaliar as perdas de água e solo de uma pastagem inserida em região de Cerrado em dois períodos distintos do ano (primavera e verão), visando compreender a dinâmica hidrogeomorfológica do uso em questão. Para tal, utilizando-se de um simulador de chuvas calibrado para replicar pluviosidades de alta intensidade semelhantes às ocorrentes na região de estudo (Uberlândia-MG), replicou-se precipitações com intensidade de 64,34 mm/h em um tempo de 30 minutos (32,17 mm) sobre 4 parcelas de erosão. No geral, a pastagem da área de estudo se apresentou em boas condições de qualidade, expondo baixos valores de água e sedimentos perdidos, sendo os maiores volumes escoados no verão e maiores taxas erodidas no inverno. Os valores encontrados estão ligados às variações sazonais climáticas expressas na região, as quais refletiram nos hábitos de crescimento vegetativo das plantas, gerando alterações na qualidade estrutural das pastagens, sendo verificado que o período de retorno das chuvas na região (transição inverno-verão) se comporta como fase mais susceptível para o desencadeamento de processos erosivos.Universidade Federal de Uberlândia2022-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://seer.ufu.br/index.php/sociedadenatureza/article/view/6561810.14393/SN-v34-2022-65618Sociedade & Natureza; Vol. 34 No. 1 (2022): Sociedade & Natureza; v. 34 n. 1 (2022): 1982-45130103-1570reponame:Sociedade & natureza (Online)instname:Universidade Federal de Uberlândia (UFU)instacron:UFUengporhttps://seer.ufu.br/index.php/sociedadenatureza/article/view/65618/34572https://seer.ufu.br/index.php/sociedadenatureza/article/view/65618/34573Copyright (c) 2021 Jefferson Gomes Confessor, Lara Luíza Silva, Paula Meirilane Soares Araújohttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessConfessor, Jefferson GomesSilva, Lara LuízaAraújo, Paula Meirilane Soares2023-04-06T20:32:29Zoai:ojs.www.seer.ufu.br:article/65618Revistahttp://www.sociedadenatureza.ig.ufu.br/PUBhttps://seer.ufu.br/index.php/sociedadenatureza/oai||sociedade.natureza.ufu@gmail.com|| lucianamelo@ufu.br1982-45130103-1570opendoar:2023-04-06T20:32:29Sociedade & natureza (Online) - Universidade Federal de Uberlândia (UFU)false |
dc.title.none.fl_str_mv |
An Assessment of Water and Soil Losses in Pastures of the Brazilian Savana Using Simulated Rain Avaliação das Perdas de Água e Solo em Pastagem Inserida em Ambiente de Cerrado Brasileiro sob Chuva Simulada |
title |
An Assessment of Water and Soil Losses in Pastures of the Brazilian Savana Using Simulated Rain |
spellingShingle |
An Assessment of Water and Soil Losses in Pastures of the Brazilian Savana Using Simulated Rain Confessor, Jefferson Gomes Erosão Conservação dos solos Hidrogeomorfologia Soil Erosion Soil conservation Hydrogeomorphology |
title_short |
An Assessment of Water and Soil Losses in Pastures of the Brazilian Savana Using Simulated Rain |
title_full |
An Assessment of Water and Soil Losses in Pastures of the Brazilian Savana Using Simulated Rain |
title_fullStr |
An Assessment of Water and Soil Losses in Pastures of the Brazilian Savana Using Simulated Rain |
title_full_unstemmed |
An Assessment of Water and Soil Losses in Pastures of the Brazilian Savana Using Simulated Rain |
title_sort |
An Assessment of Water and Soil Losses in Pastures of the Brazilian Savana Using Simulated Rain |
author |
Confessor, Jefferson Gomes |
author_facet |
Confessor, Jefferson Gomes Silva, Lara Luíza Araújo, Paula Meirilane Soares |
author_role |
author |
author2 |
Silva, Lara Luíza Araújo, Paula Meirilane Soares |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Confessor, Jefferson Gomes Silva, Lara Luíza Araújo, Paula Meirilane Soares |
dc.subject.por.fl_str_mv |
Erosão Conservação dos solos Hidrogeomorfologia Soil Erosion Soil conservation Hydrogeomorphology |
topic |
Erosão Conservação dos solos Hidrogeomorfologia Soil Erosion Soil conservation Hydrogeomorphology |
description |
Pastures occupy a large part of Brazilian national territory, being of heterogeneous characteristics and varying in climate, fertility, and management. Water erosion, generated by the action of rainfall, is a principal source of soil depletion. These soils exhibit distinct behaviors spatially and temporally. Therefore, this research aims to evaluate the water and soil losses in a pasture of the Cerrado region during two periods of the year (winter and summer) with the aim of understanding the hydro-geomorphological dynamic of the pastures in question. A rainfall simulator was calibrated at 64.34 mm/h, to replicate similar intensities to those of the study region, for 30 minutes (32.17 mm) over four erosion plots. Overall, the plots presented low water and sediment losses, with the largest runoff volumes in the summer and the highest erosion rates in winter. These results are connected to seasonal climate variations expressed in the region, which are reflected in the plant growth habits, generating alterations in the structural quality of the pastures. It follows that the return of the rainy season (winter-summer transition) represents a critical phase for the triggering of the erosive process. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-09-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://seer.ufu.br/index.php/sociedadenatureza/article/view/65618 10.14393/SN-v34-2022-65618 |
url |
https://seer.ufu.br/index.php/sociedadenatureza/article/view/65618 |
identifier_str_mv |
10.14393/SN-v34-2022-65618 |
dc.language.iso.fl_str_mv |
eng por |
language |
eng por |
dc.relation.none.fl_str_mv |
https://seer.ufu.br/index.php/sociedadenatureza/article/view/65618/34572 https://seer.ufu.br/index.php/sociedadenatureza/article/view/65618/34573 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2021 Jefferson Gomes Confessor, Lara Luíza Silva, Paula Meirilane Soares Araújo https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2021 Jefferson Gomes Confessor, Lara Luíza Silva, Paula Meirilane Soares Araújo https://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Uberlândia |
publisher.none.fl_str_mv |
Universidade Federal de Uberlândia |
dc.source.none.fl_str_mv |
Sociedade & Natureza; Vol. 34 No. 1 (2022): Sociedade & Natureza; v. 34 n. 1 (2022): 1982-4513 0103-1570 reponame:Sociedade & natureza (Online) instname:Universidade Federal de Uberlândia (UFU) instacron:UFU |
instname_str |
Universidade Federal de Uberlândia (UFU) |
instacron_str |
UFU |
institution |
UFU |
reponame_str |
Sociedade & natureza (Online) |
collection |
Sociedade & natureza (Online) |
repository.name.fl_str_mv |
Sociedade & natureza (Online) - Universidade Federal de Uberlândia (UFU) |
repository.mail.fl_str_mv |
||sociedade.natureza.ufu@gmail.com|| lucianamelo@ufu.br |
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1799943982981054464 |