Identifying optimal cell size for geodiversity quantitative assessment with richness, diversity and evenness indices
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | https://hdl.handle.net/1822/84970 |
Resumo: | The importance of quantitatively assessing the spatial patterns of geodiversity, and their intrinsic relationship with biodiversity and the ecosystem services provided to society, has been signalized by several authors, due to the relevance of this information in territorial management, the planning of environmental and conservation strategies. Within geodiversity method assessments, the grid system is the most widely used GIS spatial approach to calculate a geodiversity index. Preferred for its simplicity, it implies the fundamental decision of choosing the scale of the analysis, defined by the selection of cell size, determinant for the accuracy and correctness of the final maps. Although this topic has been occasionally approached by some authors within geodiversity assessments, there is no formal procedure for cell size selection. This is a key issue, and, in the scope of the present work, an empirical procedure to select optimal cell size(s) was tested on the national scale in Portugal, in lithology and geomorphology datasets. The quantitative method based on geodiversity indices was applied, using richness, diversity and evenness indices, in a hexagonal analytical grid, through eight cell dimensions. Several descriptive statistical parameters were analyzed, with particular emphasis on dispersion statistical measures. Optimal cell size corresponded to the minimum cell size, once dispersion values were significatively reduced or stabilized, and distributions from evenness and diversity indices were closer to symmetry, which provided more accurate results and higher spatial differentiation, although the final decision should always consider the main purposes of the analysis. |
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Identifying optimal cell size for geodiversity quantitative assessment with richness, diversity and evenness indicesGrid systemGeodiversity quantitative assessmentCell sizeDiversity indicesCiências Naturais::Ciências da Terra e do AmbienteThe importance of quantitatively assessing the spatial patterns of geodiversity, and their intrinsic relationship with biodiversity and the ecosystem services provided to society, has been signalized by several authors, due to the relevance of this information in territorial management, the planning of environmental and conservation strategies. Within geodiversity method assessments, the grid system is the most widely used GIS spatial approach to calculate a geodiversity index. Preferred for its simplicity, it implies the fundamental decision of choosing the scale of the analysis, defined by the selection of cell size, determinant for the accuracy and correctness of the final maps. Although this topic has been occasionally approached by some authors within geodiversity assessments, there is no formal procedure for cell size selection. This is a key issue, and, in the scope of the present work, an empirical procedure to select optimal cell size(s) was tested on the national scale in Portugal, in lithology and geomorphology datasets. The quantitative method based on geodiversity indices was applied, using richness, diversity and evenness indices, in a hexagonal analytical grid, through eight cell dimensions. Several descriptive statistical parameters were analyzed, with particular emphasis on dispersion statistical measures. Optimal cell size corresponded to the minimum cell size, once dispersion values were significatively reduced or stabilized, and distributions from evenness and diversity indices were closer to symmetry, which provided more accurate results and higher spatial differentiation, although the final decision should always consider the main purposes of the analysis.This research was funded by the European Social Fund (ESF) and the Portuguese funding institution FCT—Foundation for Science and Technology, grant number: UI/BD/150805/2020. This study had the support of FCT through the strategic projects UIDB/04683/2020 and UIDB/04292/2020 awarded to ICT and MARE and through project LA/P/0069/2020 granted to the Associate Laboratory ARNET.MDPIUniversidade do MinhoLopes CatarinaTeixeira, ZaraPereira, D. I.Pereira, Paulo20232023-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/1822/84970engLopes, C.; Teixeira, Z.; Pereira, D.I.; Pereira, P. Identifying Optimal Cell Size for Geodiversity Quantitative Assessment with Richness, Diversity and Evenness Indices. Resources 2023, 12, 65. https://doi.org/10.3390/resources120600652079-927610.3390/resources1206006565https://www.mdpi.com/2079-9276/12/6/65info: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:RCAAP2023-12-23T01:33:49Zoai:repositorium.sdum.uminho.pt:1822/84970Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:32:01.426327Repositório 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 |
Identifying optimal cell size for geodiversity quantitative assessment with richness, diversity and evenness indices |
title |
Identifying optimal cell size for geodiversity quantitative assessment with richness, diversity and evenness indices |
spellingShingle |
Identifying optimal cell size for geodiversity quantitative assessment with richness, diversity and evenness indices Lopes Catarina Grid system Geodiversity quantitative assessment Cell size Diversity indices Ciências Naturais::Ciências da Terra e do Ambiente |
title_short |
Identifying optimal cell size for geodiversity quantitative assessment with richness, diversity and evenness indices |
title_full |
Identifying optimal cell size for geodiversity quantitative assessment with richness, diversity and evenness indices |
title_fullStr |
Identifying optimal cell size for geodiversity quantitative assessment with richness, diversity and evenness indices |
title_full_unstemmed |
Identifying optimal cell size for geodiversity quantitative assessment with richness, diversity and evenness indices |
title_sort |
Identifying optimal cell size for geodiversity quantitative assessment with richness, diversity and evenness indices |
author |
Lopes Catarina |
author_facet |
Lopes Catarina Teixeira, Zara Pereira, D. I. Pereira, Paulo |
author_role |
author |
author2 |
Teixeira, Zara Pereira, D. I. Pereira, Paulo |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Lopes Catarina Teixeira, Zara Pereira, D. I. Pereira, Paulo |
dc.subject.por.fl_str_mv |
Grid system Geodiversity quantitative assessment Cell size Diversity indices Ciências Naturais::Ciências da Terra e do Ambiente |
topic |
Grid system Geodiversity quantitative assessment Cell size Diversity indices Ciências Naturais::Ciências da Terra e do Ambiente |
description |
The importance of quantitatively assessing the spatial patterns of geodiversity, and their intrinsic relationship with biodiversity and the ecosystem services provided to society, has been signalized by several authors, due to the relevance of this information in territorial management, the planning of environmental and conservation strategies. Within geodiversity method assessments, the grid system is the most widely used GIS spatial approach to calculate a geodiversity index. Preferred for its simplicity, it implies the fundamental decision of choosing the scale of the analysis, defined by the selection of cell size, determinant for the accuracy and correctness of the final maps. Although this topic has been occasionally approached by some authors within geodiversity assessments, there is no formal procedure for cell size selection. This is a key issue, and, in the scope of the present work, an empirical procedure to select optimal cell size(s) was tested on the national scale in Portugal, in lithology and geomorphology datasets. The quantitative method based on geodiversity indices was applied, using richness, diversity and evenness indices, in a hexagonal analytical grid, through eight cell dimensions. Several descriptive statistical parameters were analyzed, with particular emphasis on dispersion statistical measures. Optimal cell size corresponded to the minimum cell size, once dispersion values were significatively reduced or stabilized, and distributions from evenness and diversity indices were closer to symmetry, which provided more accurate results and higher spatial differentiation, although the final decision should always consider the main purposes of the analysis. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023 2023-01-01T00:00:00Z |
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 |
https://hdl.handle.net/1822/84970 |
url |
https://hdl.handle.net/1822/84970 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Lopes, C.; Teixeira, Z.; Pereira, D.I.; Pereira, P. Identifying Optimal Cell Size for Geodiversity Quantitative Assessment with Richness, Diversity and Evenness Indices. Resources 2023, 12, 65. https://doi.org/10.3390/resources12060065 2079-9276 10.3390/resources12060065 65 https://www.mdpi.com/2079-9276/12/6/65 |
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 |
MDPI |
publisher.none.fl_str_mv |
MDPI |
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 |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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