Degradation of Phytophysiognomies of Cerrado and linear water erosive impacts in southwest of Goiás – Brazil
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Data de Publicação: | 2021 |
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Tipo de documento: | Artigo |
Idioma: | por eng |
Título da fonte: | Sociedade & natureza (Online) |
Texto Completo: | https://seer.ufu.br/index.php/sociedadenatureza/article/view/60606 |
Resumo: | Changes in soil cover and use have become a leading environmental degradation factor, especially soil erosion. In the last four decades, Cerrado environments have undergone an intense conversion to anthropic use, especially agriculture, bare soil and, mainly, pasture. This work evaluates the relationship between these changes and water erosion, highlighting the most affected phytophysiognomies and the consequent emergence of critically degraded areas. The methodology comprises the correlation between the CP factor dynamics (Land cover and use and management practices) of each phytophysiognomy class and land use from 1985 to 2014 and the density of outbreaks and area of erosive contribution in 2014. The results indicate that the period 1985-1995 was noteworthy for converting Savannah, Thin Savanna, and Typical Savanna to Agriculture, Bare Soil and Pasture, while the period 1995-2005, consolidated this type of use. In 2005-2014 there was a low conversion of phytophysiognomies and consequently increased consolidation by anthropic use. The areas with a high density of up to 3.5/km², a high percentage of erosive contribution (up to 48%), and in critical stages of degradation are associated with converting these three phytophysiognomies to Bare Soil and mainly Pasture, both of high CP values. Throughout the period, 53.32 % of the erosive contribution area was due to the same type of conversion. Another 33.88 % occurred in areas where similar use already prevailed in 1985 and persisted in this condition all through the analyzed period. |
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Degradation of Phytophysiognomies of Cerrado and linear water erosive impacts in southwest of Goiás – BrazilDegradação de fitofisionomias do Cerrado e impactos erosivos hídricos lineares no sudoeste de Goiás – BrasilCobertura e Uso do SoloImpacto AmbientalAnálise MultitemporalErosão LinearLand cover and UseEnvironmental ImpactMultitemporal AnalysisLinear ErosionChanges in soil cover and use have become a leading environmental degradation factor, especially soil erosion. In the last four decades, Cerrado environments have undergone an intense conversion to anthropic use, especially agriculture, bare soil and, mainly, pasture. This work evaluates the relationship between these changes and water erosion, highlighting the most affected phytophysiognomies and the consequent emergence of critically degraded areas. The methodology comprises the correlation between the CP factor dynamics (Land cover and use and management practices) of each phytophysiognomy class and land use from 1985 to 2014 and the density of outbreaks and area of erosive contribution in 2014. The results indicate that the period 1985-1995 was noteworthy for converting Savannah, Thin Savanna, and Typical Savanna to Agriculture, Bare Soil and Pasture, while the period 1995-2005, consolidated this type of use. In 2005-2014 there was a low conversion of phytophysiognomies and consequently increased consolidation by anthropic use. The areas with a high density of up to 3.5/km², a high percentage of erosive contribution (up to 48%), and in critical stages of degradation are associated with converting these three phytophysiognomies to Bare Soil and mainly Pasture, both of high CP values. Throughout the period, 53.32 % of the erosive contribution area was due to the same type of conversion. Another 33.88 % occurred in areas where similar use already prevailed in 1985 and persisted in this condition all through the analyzed period.Mudanças na cobertura e uso do solo vêm se tornando um dos principais fatores de degradação ambiental, especialmente na forma de erosão dos solos. Neste contexto, nas últimas quatro décadas os ambientes de Cerrado passaram por intenso processo de conversão da cobertura vegetal em uso antrópico, em especial agricultura, solo exposto e, principalmente, pastagem. O objetivo deste trabalho é avaliar a relação entre essas mudanças e os processos erosivos hídricos, ressaltando as fitofisionomias mais afetadas e o consequente surgimento de áreas críticas quanto a degradação. A metodologia compreendeu a correlação entre a dinâmica do fator CP (cobertura/uso e práticas de manejo) de cada classe de fitofisionomia e uso de 1985 a 2014 e a densidade de focos e respectiva área de contribuição erosiva em 2014. Os resultados indicam que o período 1985-1995 foi marcado pela conversão de Cerradão, Cerrado Ralo e Cerrado Típico em Agricultura, Solo Exposto e Pastagem e no período 1995-2005 houve consolidação desses tipos de uso. No período 2005-2014 houve pouca conversão de fitofisionomias e aumento da consolidação por uso antrópico. As áreas com elevada densidade de focos, de até 3,5/km², e elevado percentual de contribuição erosiva de até 48 %, bem como aquelas em estágios críticos de degradação estão associadas à conversão dessas três fitofisionomias para Solo Exposto e, principalmente, Pastagem, ambos de elevados valores CP. Em todo o período 53,32 % da área de contribuição erosiva resultaram deste mesmo tipo de conversão e outros 33,88 % ocorreram em áreas nas quais em 1985 já predominavam esses mesmos tipos de uso e que permaneceram nessa condição por todo o período analisado.Universidade Federal de Uberlândia2021-08-26info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://seer.ufu.br/index.php/sociedadenatureza/article/view/6060610.14393/SN-v33-2021-60606Sociedade & Natureza; Vol. 33 (2021)Sociedade & Natureza; v. 33 (2021)1982-45130103-1570reponame:Sociedade & natureza (Online)instname:Universidade Federal de Uberlândia (UFU)instacron:UFUporenghttps://seer.ufu.br/index.php/sociedadenatureza/article/view/60606/32442https://seer.ufu.br/index.php/sociedadenatureza/article/view/60606/32443Copyright (c) 2021 Elizon Dias Nunes, Selma Simões de Castroinfo:eu-repo/semantics/openAccessNunes, Elizon Dias Castro, Selma Simões2021-08-26T19:06:18Zoai:ojs.www.seer.ufu.br:article/60606Revistahttp://www.sociedadenatureza.ig.ufu.br/PUBhttps://seer.ufu.br/index.php/sociedadenatureza/oai||sociedade.natureza.ufu@gmail.com|| lucianamelo@ufu.br1982-45130103-1570opendoar:2021-08-26T19:06:18Sociedade & natureza (Online) - Universidade Federal de Uberlândia (UFU)false |
dc.title.none.fl_str_mv |
Degradation of Phytophysiognomies of Cerrado and linear water erosive impacts in southwest of Goiás – Brazil Degradação de fitofisionomias do Cerrado e impactos erosivos hídricos lineares no sudoeste de Goiás – Brasil |
title |
Degradation of Phytophysiognomies of Cerrado and linear water erosive impacts in southwest of Goiás – Brazil |
spellingShingle |
Degradation of Phytophysiognomies of Cerrado and linear water erosive impacts in southwest of Goiás – Brazil Nunes, Elizon Dias Cobertura e Uso do Solo Impacto Ambiental Análise Multitemporal Erosão Linear Land cover and Use Environmental Impact Multitemporal Analysis Linear Erosion |
title_short |
Degradation of Phytophysiognomies of Cerrado and linear water erosive impacts in southwest of Goiás – Brazil |
title_full |
Degradation of Phytophysiognomies of Cerrado and linear water erosive impacts in southwest of Goiás – Brazil |
title_fullStr |
Degradation of Phytophysiognomies of Cerrado and linear water erosive impacts in southwest of Goiás – Brazil |
title_full_unstemmed |
Degradation of Phytophysiognomies of Cerrado and linear water erosive impacts in southwest of Goiás – Brazil |
title_sort |
Degradation of Phytophysiognomies of Cerrado and linear water erosive impacts in southwest of Goiás – Brazil |
author |
Nunes, Elizon Dias |
author_facet |
Nunes, Elizon Dias Castro, Selma Simões |
author_role |
author |
author2 |
Castro, Selma Simões |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Nunes, Elizon Dias Castro, Selma Simões |
dc.subject.por.fl_str_mv |
Cobertura e Uso do Solo Impacto Ambiental Análise Multitemporal Erosão Linear Land cover and Use Environmental Impact Multitemporal Analysis Linear Erosion |
topic |
Cobertura e Uso do Solo Impacto Ambiental Análise Multitemporal Erosão Linear Land cover and Use Environmental Impact Multitemporal Analysis Linear Erosion |
description |
Changes in soil cover and use have become a leading environmental degradation factor, especially soil erosion. In the last four decades, Cerrado environments have undergone an intense conversion to anthropic use, especially agriculture, bare soil and, mainly, pasture. This work evaluates the relationship between these changes and water erosion, highlighting the most affected phytophysiognomies and the consequent emergence of critically degraded areas. The methodology comprises the correlation between the CP factor dynamics (Land cover and use and management practices) of each phytophysiognomy class and land use from 1985 to 2014 and the density of outbreaks and area of erosive contribution in 2014. The results indicate that the period 1985-1995 was noteworthy for converting Savannah, Thin Savanna, and Typical Savanna to Agriculture, Bare Soil and Pasture, while the period 1995-2005, consolidated this type of use. In 2005-2014 there was a low conversion of phytophysiognomies and consequently increased consolidation by anthropic use. The areas with a high density of up to 3.5/km², a high percentage of erosive contribution (up to 48%), and in critical stages of degradation are associated with converting these three phytophysiognomies to Bare Soil and mainly Pasture, both of high CP values. Throughout the period, 53.32 % of the erosive contribution area was due to the same type of conversion. Another 33.88 % occurred in areas where similar use already prevailed in 1985 and persisted in this condition all through the analyzed period. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-08-26 |
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/60606 10.14393/SN-v33-2021-60606 |
url |
https://seer.ufu.br/index.php/sociedadenatureza/article/view/60606 |
identifier_str_mv |
10.14393/SN-v33-2021-60606 |
dc.language.iso.fl_str_mv |
por eng |
language |
por eng |
dc.relation.none.fl_str_mv |
https://seer.ufu.br/index.php/sociedadenatureza/article/view/60606/32442 https://seer.ufu.br/index.php/sociedadenatureza/article/view/60606/32443 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2021 Elizon Dias Nunes, Selma Simões de Castro info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2021 Elizon Dias Nunes, Selma Simões de Castro |
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. 33 (2021) Sociedade & Natureza; v. 33 (2021) 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 |
_version_ |
1799943981647265792 |