Identifying optimal cell size for geodiversity quantitative assessment with richness, diversity and evenness indices

Detalhes bibliográficos
Autor(a) principal: Lopes Catarina
Data de Publicação: 2023
Outros Autores: Teixeira, Zara, Pereira, D. I., Pereira, Paulo
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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spelling 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
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