Temporal evaluation of soil use conflicts in the Formoso river basin, state of Tocantins, Brazil
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Pesquisa Florestal Brasileira (Online) |
Texto Completo: | https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/820 |
Resumo: | The importance of permanent preservation areas (PPA) is mainly associated to their environmental role to maintain, preserve, and conserve water resources and ecosystems within a basin. The objective of this study was to delimitate and quantify the areas of PPA along watercourses as well as anthropized areas within PPAs boundaries, in the Formoso river basin, state of Tocantins, Brazil. PPAs area was delimited considering boundaries according to the Brazilian Forest Law. We sampled areas within the watercourses classified up to hierarchical Level 4. Watercourses handling draw, automatic delimitation of PPA, and visual classification of the soil use conflicts based on LANDSAT 5 TM of 1985, 1998 and 2011 were carried out on Geographical Information System ArcGIS. PPA of the watercourses sampled in this study represent 1.14% (24,491.35 ha) of the drainage area of the Formoso river basin. For 1985, an area of about 3,616.48 ha was quantified, which is characterized by conflicts related to soil use. However, these conflict areas were reduced to 3,341.25 ha and 3,345.37 ha, respectively, for 1998 and 2011. Due to the intense agricultural land expansion observed in the basin in the last decades, the mentioned reductions in soil use conflicts between 1985 and 1998 and subsequent maintenance can be linked to changes on Brazilian environmental legislation. |
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Temporal evaluation of soil use conflicts in the Formoso river basin, state of Tocantins, BrazilAvaliação temporal dos conflitos de uso do solo na bacia hidrográfica do rio Formoso, TocantinsÁrea de preservação permanenteGeotecnologiasArcGISLegislação AmbientalPermanent preservation areaGeotechnologiesArcGISEnvironmental LegislationThe importance of permanent preservation areas (PPA) is mainly associated to their environmental role to maintain, preserve, and conserve water resources and ecosystems within a basin. The objective of this study was to delimitate and quantify the areas of PPA along watercourses as well as anthropized areas within PPAs boundaries, in the Formoso river basin, state of Tocantins, Brazil. PPAs area was delimited considering boundaries according to the Brazilian Forest Law. We sampled areas within the watercourses classified up to hierarchical Level 4. Watercourses handling draw, automatic delimitation of PPA, and visual classification of the soil use conflicts based on LANDSAT 5 TM of 1985, 1998 and 2011 were carried out on Geographical Information System ArcGIS. PPA of the watercourses sampled in this study represent 1.14% (24,491.35 ha) of the drainage area of the Formoso river basin. For 1985, an area of about 3,616.48 ha was quantified, which is characterized by conflicts related to soil use. However, these conflict areas were reduced to 3,341.25 ha and 3,345.37 ha, respectively, for 1998 and 2011. Due to the intense agricultural land expansion observed in the basin in the last decades, the mentioned reductions in soil use conflicts between 1985 and 1998 and subsequent maintenance can be linked to changes on Brazilian environmental legislation.A importância das áreas de preservação permanente (APP) encontra-se na função ambiental de manter, preservar e conservar os recursos hídricos e ecossistemas existentes nas bacias hidrográficas. Objetivou-se com o presente trabalho delimitar e quantificar as APP’s de cursos d’água e áreas antropizadas nos limites destas na bacia hidrográfica do rio Formoso, TO. As APP's foram delimitadas considerando-se os limites determinados pelo Código Florestal Brasileiro, sendo amostradas as APP’s dos cursos d'água principais de nível hierárquico 4. O traçado manual da rede de drenagem, a delimitação automática das APP’s e a classificação visual dos conflitos de uso do solo a partir de imagens LANDSAT 5 TM dos anos de 1985, 1998 e 2011 foram realizadas no Sistema de Informações Geográficas ArcGIS. Constatou-se que as APP's dos cursos d’água amostradas no presente estudo representam 1,14% (24.491,35 ha) da área de drenagem da bacia do rio Formoso. Para o ano de 1985 quantificou-se uma área de 3.616,48 ha de conflitos de uso do solo na bacia, passando para 3.341,25 ha em 1998 e 3.345,37 ha em 2011. Tendo-se em vista a intensiva expansão agrícola observada na bacia do rio Formoso nas últimas décadas, a retração da área de conflitos de uso do solo entre 1985 e 1998 e sua posterior manutenção, pode ser associada às alterações na legislação ambiental.Embrapa Florestas2015-09-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/82010.4336/2015.pfb.35.83.820Pesquisa Florestal Brasileira; v. 35 n. 83 (2015): jul./set.; 271-283Pesquisa Florestal Brasileira; Vol. 35 No. 83 (2015): jul./set.; 271-2831983-26051809-3647reponame:Pesquisa Florestal Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/820/435Cardoso de Lima Fonseca Alves, Kaio CesarRibeiro Viola, Marcelode Souza, Patrícia AparecidaGiongo, Marcosde Mello, Carlos Rogérioinfo:eu-repo/semantics/openAccess2017-04-28T12:42:02Zoai:pfb.cnpf.embrapa.br/pfb:article/820Revistahttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/PUBhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/oaipfb@embrapa.br || revista.pfb@gmail.com || patricia.mattos@embrapa.br1983-26051809-3647opendoar:2017-04-28T12:42:02Pesquisa Florestal Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Temporal evaluation of soil use conflicts in the Formoso river basin, state of Tocantins, Brazil Avaliação temporal dos conflitos de uso do solo na bacia hidrográfica do rio Formoso, Tocantins |
title |
Temporal evaluation of soil use conflicts in the Formoso river basin, state of Tocantins, Brazil |
spellingShingle |
Temporal evaluation of soil use conflicts in the Formoso river basin, state of Tocantins, Brazil Cardoso de Lima Fonseca Alves, Kaio Cesar Área de preservação permanente Geotecnologias ArcGIS Legislação Ambiental Permanent preservation area Geotechnologies ArcGIS Environmental Legislation |
title_short |
Temporal evaluation of soil use conflicts in the Formoso river basin, state of Tocantins, Brazil |
title_full |
Temporal evaluation of soil use conflicts in the Formoso river basin, state of Tocantins, Brazil |
title_fullStr |
Temporal evaluation of soil use conflicts in the Formoso river basin, state of Tocantins, Brazil |
title_full_unstemmed |
Temporal evaluation of soil use conflicts in the Formoso river basin, state of Tocantins, Brazil |
title_sort |
Temporal evaluation of soil use conflicts in the Formoso river basin, state of Tocantins, Brazil |
author |
Cardoso de Lima Fonseca Alves, Kaio Cesar |
author_facet |
Cardoso de Lima Fonseca Alves, Kaio Cesar Ribeiro Viola, Marcelo de Souza, Patrícia Aparecida Giongo, Marcos de Mello, Carlos Rogério |
author_role |
author |
author2 |
Ribeiro Viola, Marcelo de Souza, Patrícia Aparecida Giongo, Marcos de Mello, Carlos Rogério |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Cardoso de Lima Fonseca Alves, Kaio Cesar Ribeiro Viola, Marcelo de Souza, Patrícia Aparecida Giongo, Marcos de Mello, Carlos Rogério |
dc.subject.por.fl_str_mv |
Área de preservação permanente Geotecnologias ArcGIS Legislação Ambiental Permanent preservation area Geotechnologies ArcGIS Environmental Legislation |
topic |
Área de preservação permanente Geotecnologias ArcGIS Legislação Ambiental Permanent preservation area Geotechnologies ArcGIS Environmental Legislation |
description |
The importance of permanent preservation areas (PPA) is mainly associated to their environmental role to maintain, preserve, and conserve water resources and ecosystems within a basin. The objective of this study was to delimitate and quantify the areas of PPA along watercourses as well as anthropized areas within PPAs boundaries, in the Formoso river basin, state of Tocantins, Brazil. PPAs area was delimited considering boundaries according to the Brazilian Forest Law. We sampled areas within the watercourses classified up to hierarchical Level 4. Watercourses handling draw, automatic delimitation of PPA, and visual classification of the soil use conflicts based on LANDSAT 5 TM of 1985, 1998 and 2011 were carried out on Geographical Information System ArcGIS. PPA of the watercourses sampled in this study represent 1.14% (24,491.35 ha) of the drainage area of the Formoso river basin. For 1985, an area of about 3,616.48 ha was quantified, which is characterized by conflicts related to soil use. However, these conflict areas were reduced to 3,341.25 ha and 3,345.37 ha, respectively, for 1998 and 2011. Due to the intense agricultural land expansion observed in the basin in the last decades, the mentioned reductions in soil use conflicts between 1985 and 1998 and subsequent maintenance can be linked to changes on Brazilian environmental legislation. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-09-30 |
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://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/820 10.4336/2015.pfb.35.83.820 |
url |
https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/820 |
identifier_str_mv |
10.4336/2015.pfb.35.83.820 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/820/435 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Embrapa Florestas |
publisher.none.fl_str_mv |
Embrapa Florestas |
dc.source.none.fl_str_mv |
Pesquisa Florestal Brasileira; v. 35 n. 83 (2015): jul./set.; 271-283 Pesquisa Florestal Brasileira; Vol. 35 No. 83 (2015): jul./set.; 271-283 1983-2605 1809-3647 reponame:Pesquisa Florestal Brasileira (Online) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Pesquisa Florestal Brasileira (Online) |
collection |
Pesquisa Florestal Brasileira (Online) |
repository.name.fl_str_mv |
Pesquisa Florestal Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
pfb@embrapa.br || revista.pfb@gmail.com || patricia.mattos@embrapa.br |
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1783370935195140096 |