Mapping and analysis of geodiversity indices in the Xingu river basin, Amazonia, Brazil

Detalhes bibliográficos
Autor(a) principal: Silva, Juliana
Data de Publicação: 2015
Outros Autores: Rodrigues, Cleide, Pereira, D. I.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/35026
Resumo: First published online: 14 October 2014
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spelling Mapping and analysis of geodiversity indices in the Xingu river basin, Amazonia, BrazilGeodiversity assessmentAmazoniaXingu RiverCiências Naturais::Ciências da Terra e do AmbienteScience & TechnologyFirst published online: 14 October 2014From the 1990s, geodiversity studies have been widely carried out in order to understand, describe and preserve the natural heritage of the abiotic environment. Geodiversity assessments have principally been conducted using geological (minerals, rocks and fossils), geomorphological (landforms and processes) and pedological variables. This concept has been widespread and consolidated in scientific circles, where early studies focused on methods that assessed the spatial variability of the geodiversity, with a particular focus on quantitative aspects. In this study, a geodiversity quantification methodology (Pereira et al. 2013) has been applied to the Xingu River basin (Amazônia, Brazil), which covers approximately 51 million hectares. This methodology is based on measuring and integrating abiotic elements, which are spatialised using thematic maps at scales varying between 1:250,000 and 1:1,000,000 and using a 1:25,000 systematic linkage grid. This methodology was adapted for the Amazonian environment by including parameters related to river channel patterns, as approximately 12.6 % of the area is a fluvial environment (channels and floodplains). After applying the methodology, geodiversity indices varying between 4 and 32 were obtained, and a geodiversity hot spot in the basin was identified in the region known as “Volta Grande do Xingu” (The Great Bend of the Xingu). The results of the study highlight the fragility of legal tools for environmental protection of the area, primarily those related to aspects of the physical environment. Although large portions of the basin are partially or fully protected (as indigenous lands and conservation units), the area with the greatest geodiversity is precisely the one which has fewer legal protection devices and is where the Belo Monte hydroelectric power plant is being built.Springer VerlagUniversidade do MinhoSilva, JulianaRodrigues, CleidePereira, D. I.20152015-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/35026engSilva, J. de P., Rodrigues, C., & Pereira, D. I. (2015). Mapping and Analysis of Geodiversity Indices in the Xingu River Basin, Amazonia, Brazil. Geoheritage, 1–14.1867-247710.1007/s12371-014-0134-8http://link.springer.com/article/10.1007%2Fs12371-014-0134-8info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:04:19Zoai:repositorium.sdum.uminho.pt:1822/35026Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:54:37.240503Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Mapping and analysis of geodiversity indices in the Xingu river basin, Amazonia, Brazil
title Mapping and analysis of geodiversity indices in the Xingu river basin, Amazonia, Brazil
spellingShingle Mapping and analysis of geodiversity indices in the Xingu river basin, Amazonia, Brazil
Silva, Juliana
Geodiversity assessment
Amazonia
Xingu River
Ciências Naturais::Ciências da Terra e do Ambiente
Science & Technology
title_short Mapping and analysis of geodiversity indices in the Xingu river basin, Amazonia, Brazil
title_full Mapping and analysis of geodiversity indices in the Xingu river basin, Amazonia, Brazil
title_fullStr Mapping and analysis of geodiversity indices in the Xingu river basin, Amazonia, Brazil
title_full_unstemmed Mapping and analysis of geodiversity indices in the Xingu river basin, Amazonia, Brazil
title_sort Mapping and analysis of geodiversity indices in the Xingu river basin, Amazonia, Brazil
author Silva, Juliana
author_facet Silva, Juliana
Rodrigues, Cleide
Pereira, D. I.
author_role author
author2 Rodrigues, Cleide
Pereira, D. I.
author2_role author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Silva, Juliana
Rodrigues, Cleide
Pereira, D. I.
dc.subject.por.fl_str_mv Geodiversity assessment
Amazonia
Xingu River
Ciências Naturais::Ciências da Terra e do Ambiente
Science & Technology
topic Geodiversity assessment
Amazonia
Xingu River
Ciências Naturais::Ciências da Terra e do Ambiente
Science & Technology
description First published online: 14 October 2014
publishDate 2015
dc.date.none.fl_str_mv 2015
2015-01-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/1822/35026
url http://hdl.handle.net/1822/35026
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Silva, J. de P., Rodrigues, C., & Pereira, D. I. (2015). Mapping and Analysis of Geodiversity Indices in the Xingu River Basin, Amazonia, Brazil. Geoheritage, 1–14.
1867-2477
10.1007/s12371-014-0134-8
http://link.springer.com/article/10.1007%2Fs12371-014-0134-8
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 Springer Verlag
publisher.none.fl_str_mv Springer Verlag
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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