Characterisation of functional-trait dynamics at high spatial resolution in a Mediterranean forest from sentinel-2 and ground-truth data

Autores
Schauman, Santiago Augusto; Verger, Aleixandre; Filella, Iolanda; Peñuelas, Josep
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The characterisation of functional-trait dynamics of vegetation from remotely sensed data complements the structural characterisation of ecosystems. In this study we characterised for the first time the spatial heterogeneity of the intra-annual dynamics of the fraction of absorbed photosynthetically active radiation (FAPAR) as a functional trait of the vegetation in Prades Mediterranean forest in Catalonia, Spain. FAPAR was derived from the Multispectral Instrument (MSI) on the Sentinel-2 satellite and validated by comparison with the ground measurements acquired in June 2017 at the annual peak of vegetation activity. The validation results showed that most of points were distributed along the 1:1 line, with no bias nor scattering: R 2 = 0.93, p < 0.05; with a root mean square error of 0.03 FAPAR (4.3%). We classified the study area into nine vegetation groups with different dynamics of FAPAR using a methodology that is objective and repeatable over time. This functional classification based on the annual magnitude (FAPAR-M) and the seasonality (FAPAR-CV) from the data on one year (2016-2017) complements structural classifications. The internal heterogeneity of the FAPAR dynamics in each land-cover type is attributed to the environmental and to the specific species composition variability. A spatial autoregressive (SAR) model for the main type of land cover, evergreen holm oak forest (Quercus ilex), indicated that topographic aspect, slope, height, and the topographic aspect x slope interaction accounted for most of the spatial heterogeneity of the functional trait FAPAR-M, thus improving our understanding of the explanatory factors of the annual absorption of photosynthetically active radiation by the vegetation canopy for this ecosystem.
Fil: Schauman, Santiago Augusto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Matemática Aplicada de San Luis "Prof. Ezio Marchi". Universidad Nacional de San Luis. Facultad de Ciencias Físico, Matemáticas y Naturales. Instituto de Matemática Aplicada de San Luis "Prof. Ezio Marchi"; Argentina. Universidad Nacional de San Luis. Facultad de Cs. Economicas, Juridicas y Sociales. Departamento de Ciencias Juridicas y Politicas. Centro de Investigacion y Vinculacion En Estudios Ambientales.; Argentina
Fil: Verger, Aleixandre. Consejo Superior de Investigaciones Científicas; España
Fil: Filella, Iolanda. Consejo Superior de Investigaciones Científicas; España
Fil: Peñuelas, Josep. Consejo Superior de Investigaciones Científicas; España
Materia
SENTINEL-2
FIELD CAMPAIGN
VALIDATION
MEDITERRANEAN FOREST
FUNCTIONAL-TRAIT DYNAMICS
SPATIAL HETEROGENEITY
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/114618
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/114618
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Characterisation of functional-trait dynamics at high spatial resolution in a Mediterranean forest from sentinel-2 and ground-truth dataSchauman, Santiago AugustoVerger, AleixandreFilella, IolandaPeñuelas, JosepSENTINEL-2FIELD CAMPAIGNVALIDATIONMEDITERRANEAN FORESTFUNCTIONAL-TRAIT DYNAMICSSPATIAL HETEROGENEITYhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The characterisation of functional-trait dynamics of vegetation from remotely sensed data complements the structural characterisation of ecosystems. In this study we characterised for the first time the spatial heterogeneity of the intra-annual dynamics of the fraction of absorbed photosynthetically active radiation (FAPAR) as a functional trait of the vegetation in Prades Mediterranean forest in Catalonia, Spain. FAPAR was derived from the Multispectral Instrument (MSI) on the Sentinel-2 satellite and validated by comparison with the ground measurements acquired in June 2017 at the annual peak of vegetation activity. The validation results showed that most of points were distributed along the 1:1 line, with no bias nor scattering: R 2 = 0.93, p < 0.05; with a root mean square error of 0.03 FAPAR (4.3%). We classified the study area into nine vegetation groups with different dynamics of FAPAR using a methodology that is objective and repeatable over time. This functional classification based on the annual magnitude (FAPAR-M) and the seasonality (FAPAR-CV) from the data on one year (2016-2017) complements structural classifications. The internal heterogeneity of the FAPAR dynamics in each land-cover type is attributed to the environmental and to the specific species composition variability. A spatial autoregressive (SAR) model for the main type of land cover, evergreen holm oak forest (Quercus ilex), indicated that topographic aspect, slope, height, and the topographic aspect x slope interaction accounted for most of the spatial heterogeneity of the functional trait FAPAR-M, thus improving our understanding of the explanatory factors of the annual absorption of photosynthetically active radiation by the vegetation canopy for this ecosystem.Fil: Schauman, Santiago Augusto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Matemática Aplicada de San Luis "Prof. Ezio Marchi". Universidad Nacional de San Luis. Facultad de Ciencias Físico, Matemáticas y Naturales. Instituto de Matemática Aplicada de San Luis "Prof. Ezio Marchi"; Argentina. Universidad Nacional de San Luis. Facultad de Cs. Economicas, Juridicas y Sociales. Departamento de Ciencias Juridicas y Politicas. Centro de Investigacion y Vinculacion En Estudios Ambientales.; ArgentinaFil: Verger, Aleixandre. Consejo Superior de Investigaciones Científicas; EspañaFil: Filella, Iolanda. Consejo Superior de Investigaciones Científicas; EspañaFil: Peñuelas, Josep. Consejo Superior de Investigaciones Científicas; EspañaMDPI2018-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/114618Schauman, Santiago Augusto; Verger, Aleixandre; Filella, Iolanda; Peñuelas, Josep; Characterisation of functional-trait dynamics at high spatial resolution in a Mediterranean forest from sentinel-2 and ground-truth data; MDPI; Remote Sensing; 10; 12; 12-2018; 1-232072-4292CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.mdpi.com/2072-4292/10/12/1874info:eu-repo/semantics/altIdentifier/doi/10.3390/rs10121874info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:03:50Zoai:ri.conicet.gov.ar:11336/114618instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:03:50.321CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Characterisation of functional-trait dynamics at high spatial resolution in a Mediterranean forest from sentinel-2 and ground-truth data
title Characterisation of functional-trait dynamics at high spatial resolution in a Mediterranean forest from sentinel-2 and ground-truth data
spellingShingle Characterisation of functional-trait dynamics at high spatial resolution in a Mediterranean forest from sentinel-2 and ground-truth data
Schauman, Santiago Augusto
SENTINEL-2
FIELD CAMPAIGN
VALIDATION
MEDITERRANEAN FOREST
FUNCTIONAL-TRAIT DYNAMICS
SPATIAL HETEROGENEITY
title_short Characterisation of functional-trait dynamics at high spatial resolution in a Mediterranean forest from sentinel-2 and ground-truth data
title_full Characterisation of functional-trait dynamics at high spatial resolution in a Mediterranean forest from sentinel-2 and ground-truth data
title_fullStr Characterisation of functional-trait dynamics at high spatial resolution in a Mediterranean forest from sentinel-2 and ground-truth data
title_full_unstemmed Characterisation of functional-trait dynamics at high spatial resolution in a Mediterranean forest from sentinel-2 and ground-truth data
title_sort Characterisation of functional-trait dynamics at high spatial resolution in a Mediterranean forest from sentinel-2 and ground-truth data
dc.creator.none.fl_str_mv Schauman, Santiago Augusto
Verger, Aleixandre
Filella, Iolanda
Peñuelas, Josep
author Schauman, Santiago Augusto
author_facet Schauman, Santiago Augusto
Verger, Aleixandre
Filella, Iolanda
Peñuelas, Josep
author_role author
author2 Verger, Aleixandre
Filella, Iolanda
Peñuelas, Josep
author2_role author
author
author
dc.subject.none.fl_str_mv SENTINEL-2
FIELD CAMPAIGN
VALIDATION
MEDITERRANEAN FOREST
FUNCTIONAL-TRAIT DYNAMICS
SPATIAL HETEROGENEITY
topic SENTINEL-2
FIELD CAMPAIGN
VALIDATION
MEDITERRANEAN FOREST
FUNCTIONAL-TRAIT DYNAMICS
SPATIAL HETEROGENEITY
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The characterisation of functional-trait dynamics of vegetation from remotely sensed data complements the structural characterisation of ecosystems. In this study we characterised for the first time the spatial heterogeneity of the intra-annual dynamics of the fraction of absorbed photosynthetically active radiation (FAPAR) as a functional trait of the vegetation in Prades Mediterranean forest in Catalonia, Spain. FAPAR was derived from the Multispectral Instrument (MSI) on the Sentinel-2 satellite and validated by comparison with the ground measurements acquired in June 2017 at the annual peak of vegetation activity. The validation results showed that most of points were distributed along the 1:1 line, with no bias nor scattering: R 2 = 0.93, p < 0.05; with a root mean square error of 0.03 FAPAR (4.3%). We classified the study area into nine vegetation groups with different dynamics of FAPAR using a methodology that is objective and repeatable over time. This functional classification based on the annual magnitude (FAPAR-M) and the seasonality (FAPAR-CV) from the data on one year (2016-2017) complements structural classifications. The internal heterogeneity of the FAPAR dynamics in each land-cover type is attributed to the environmental and to the specific species composition variability. A spatial autoregressive (SAR) model for the main type of land cover, evergreen holm oak forest (Quercus ilex), indicated that topographic aspect, slope, height, and the topographic aspect x slope interaction accounted for most of the spatial heterogeneity of the functional trait FAPAR-M, thus improving our understanding of the explanatory factors of the annual absorption of photosynthetically active radiation by the vegetation canopy for this ecosystem.
Fil: Schauman, Santiago Augusto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Matemática Aplicada de San Luis "Prof. Ezio Marchi". Universidad Nacional de San Luis. Facultad de Ciencias Físico, Matemáticas y Naturales. Instituto de Matemática Aplicada de San Luis "Prof. Ezio Marchi"; Argentina. Universidad Nacional de San Luis. Facultad de Cs. Economicas, Juridicas y Sociales. Departamento de Ciencias Juridicas y Politicas. Centro de Investigacion y Vinculacion En Estudios Ambientales.; Argentina
Fil: Verger, Aleixandre. Consejo Superior de Investigaciones Científicas; España
Fil: Filella, Iolanda. Consejo Superior de Investigaciones Científicas; España
Fil: Peñuelas, Josep. Consejo Superior de Investigaciones Científicas; España
description The characterisation of functional-trait dynamics of vegetation from remotely sensed data complements the structural characterisation of ecosystems. In this study we characterised for the first time the spatial heterogeneity of the intra-annual dynamics of the fraction of absorbed photosynthetically active radiation (FAPAR) as a functional trait of the vegetation in Prades Mediterranean forest in Catalonia, Spain. FAPAR was derived from the Multispectral Instrument (MSI) on the Sentinel-2 satellite and validated by comparison with the ground measurements acquired in June 2017 at the annual peak of vegetation activity. The validation results showed that most of points were distributed along the 1:1 line, with no bias nor scattering: R 2 = 0.93, p < 0.05; with a root mean square error of 0.03 FAPAR (4.3%). We classified the study area into nine vegetation groups with different dynamics of FAPAR using a methodology that is objective and repeatable over time. This functional classification based on the annual magnitude (FAPAR-M) and the seasonality (FAPAR-CV) from the data on one year (2016-2017) complements structural classifications. The internal heterogeneity of the FAPAR dynamics in each land-cover type is attributed to the environmental and to the specific species composition variability. A spatial autoregressive (SAR) model for the main type of land cover, evergreen holm oak forest (Quercus ilex), indicated that topographic aspect, slope, height, and the topographic aspect x slope interaction accounted for most of the spatial heterogeneity of the functional trait FAPAR-M, thus improving our understanding of the explanatory factors of the annual absorption of photosynthetically active radiation by the vegetation canopy for this ecosystem.
publishDate 2018
dc.date.none.fl_str_mv 2018-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/114618
Schauman, Santiago Augusto; Verger, Aleixandre; Filella, Iolanda; Peñuelas, Josep; Characterisation of functional-trait dynamics at high spatial resolution in a Mediterranean forest from sentinel-2 and ground-truth data; MDPI; Remote Sensing; 10; 12; 12-2018; 1-23
2072-4292
CONICET Digital
CONICET
url http://hdl.handle.net/11336/114618
identifier_str_mv Schauman, Santiago Augusto; Verger, Aleixandre; Filella, Iolanda; Peñuelas, Josep; Characterisation of functional-trait dynamics at high spatial resolution in a Mediterranean forest from sentinel-2 and ground-truth data; MDPI; Remote Sensing; 10; 12; 12-2018; 1-23
2072-4292
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.mdpi.com/2072-4292/10/12/1874
info:eu-repo/semantics/altIdentifier/doi/10.3390/rs10121874
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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