Seasonal dynamics of vegetation indices as a criterion for grouping grassland typologies
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Scientia Agrícola (Online) |
Texto Completo: | https://www.revistas.usp.br/sa/article/view/154143 |
Resumo: | This study aimed to characterize the average seasonal pattern of the vegetation in southern grassland in Brazil, and the variability found in the time series of vegetation indices. It also sought to identify similarities in the seasonal pattern of different grassland typologies. Moderate Resolution Imaging Spectroradiometer (MODIS), Normalized Difference Vegetation Index (NDVI) and Enhanced Vegetation Index (EVI) images from Feb to Dec, 2000 to 2014 were analyzed for ten regions. The grassland typologies studied showed EVI and NDVI profiles consistent with the seasonal dynamics of grassland vegetation under the influence of a subtropical climate, with highest values in the indices during the warm seasons of the year (spring and summer) and lowest in the colder seasons (autumn and winter). Considering the values of EVI and NDVI, grassland typologies were allocated to four groups with similar temporal profiles. Among the groups formed from the EVI index it is possible to identify differences between grassland typologies during the autumn and winter, while the NDVI showed differences only in winter as compared to the other seasons. |
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oai:revistas.usp.br:article/154143 |
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Scientia Agrícola (Online) |
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Seasonal dynamics of vegetation indices as a criterion for grouping grassland typologiesMODISEVINDVIphenologygrassland vegetationThis study aimed to characterize the average seasonal pattern of the vegetation in southern grassland in Brazil, and the variability found in the time series of vegetation indices. It also sought to identify similarities in the seasonal pattern of different grassland typologies. Moderate Resolution Imaging Spectroradiometer (MODIS), Normalized Difference Vegetation Index (NDVI) and Enhanced Vegetation Index (EVI) images from Feb to Dec, 2000 to 2014 were analyzed for ten regions. The grassland typologies studied showed EVI and NDVI profiles consistent with the seasonal dynamics of grassland vegetation under the influence of a subtropical climate, with highest values in the indices during the warm seasons of the year (spring and summer) and lowest in the colder seasons (autumn and winter). Considering the values of EVI and NDVI, grassland typologies were allocated to four groups with similar temporal profiles. Among the groups formed from the EVI index it is possible to identify differences between grassland typologies during the autumn and winter, while the NDVI showed differences only in winter as compared to the other seasons.Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz2019-01-31info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/sa/article/view/15414310.1590/1678-992x-2017-0173Scientia Agricola; v. 76 n. 1 (2019); 24-32Scientia Agricola; Vol. 76 Núm. 1 (2019); 24-32Scientia Agricola; Vol. 76 No. 1 (2019); 24-321678-992X0103-9016reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USPenghttps://www.revistas.usp.br/sa/article/view/154143/150381Copyright (c) 2019 Scientia Agricolainfo:eu-repo/semantics/openAccessMoreira, AndreiseBremm, CarolinaFontana, Denise CybisKuplich, Tatiana Mora2019-02-04T13:49:26Zoai:revistas.usp.br:article/154143Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:2019-02-04T13:49:26Scientia Agrícola (Online) - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
Seasonal dynamics of vegetation indices as a criterion for grouping grassland typologies |
title |
Seasonal dynamics of vegetation indices as a criterion for grouping grassland typologies |
spellingShingle |
Seasonal dynamics of vegetation indices as a criterion for grouping grassland typologies Moreira, Andreise MODIS EVI NDVI phenology grassland vegetation |
title_short |
Seasonal dynamics of vegetation indices as a criterion for grouping grassland typologies |
title_full |
Seasonal dynamics of vegetation indices as a criterion for grouping grassland typologies |
title_fullStr |
Seasonal dynamics of vegetation indices as a criterion for grouping grassland typologies |
title_full_unstemmed |
Seasonal dynamics of vegetation indices as a criterion for grouping grassland typologies |
title_sort |
Seasonal dynamics of vegetation indices as a criterion for grouping grassland typologies |
author |
Moreira, Andreise |
author_facet |
Moreira, Andreise Bremm, Carolina Fontana, Denise Cybis Kuplich, Tatiana Mora |
author_role |
author |
author2 |
Bremm, Carolina Fontana, Denise Cybis Kuplich, Tatiana Mora |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Moreira, Andreise Bremm, Carolina Fontana, Denise Cybis Kuplich, Tatiana Mora |
dc.subject.por.fl_str_mv |
MODIS EVI NDVI phenology grassland vegetation |
topic |
MODIS EVI NDVI phenology grassland vegetation |
description |
This study aimed to characterize the average seasonal pattern of the vegetation in southern grassland in Brazil, and the variability found in the time series of vegetation indices. It also sought to identify similarities in the seasonal pattern of different grassland typologies. Moderate Resolution Imaging Spectroradiometer (MODIS), Normalized Difference Vegetation Index (NDVI) and Enhanced Vegetation Index (EVI) images from Feb to Dec, 2000 to 2014 were analyzed for ten regions. The grassland typologies studied showed EVI and NDVI profiles consistent with the seasonal dynamics of grassland vegetation under the influence of a subtropical climate, with highest values in the indices during the warm seasons of the year (spring and summer) and lowest in the colder seasons (autumn and winter). Considering the values of EVI and NDVI, grassland typologies were allocated to four groups with similar temporal profiles. Among the groups formed from the EVI index it is possible to identify differences between grassland typologies during the autumn and winter, while the NDVI showed differences only in winter as compared to the other seasons. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-01-31 |
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://www.revistas.usp.br/sa/article/view/154143 10.1590/1678-992x-2017-0173 |
url |
https://www.revistas.usp.br/sa/article/view/154143 |
identifier_str_mv |
10.1590/1678-992x-2017-0173 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://www.revistas.usp.br/sa/article/view/154143/150381 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2019 Scientia Agricola info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2019 Scientia Agricola |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz |
publisher.none.fl_str_mv |
Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz |
dc.source.none.fl_str_mv |
Scientia Agricola; v. 76 n. 1 (2019); 24-32 Scientia Agricola; Vol. 76 Núm. 1 (2019); 24-32 Scientia Agricola; Vol. 76 No. 1 (2019); 24-32 1678-992X 0103-9016 reponame:Scientia Agrícola (Online) instname:Universidade de São Paulo (USP) instacron:USP |
instname_str |
Universidade de São Paulo (USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Scientia Agrícola (Online) |
collection |
Scientia Agrícola (Online) |
repository.name.fl_str_mv |
Scientia Agrícola (Online) - Universidade de São Paulo (USP) |
repository.mail.fl_str_mv |
scientia@usp.br||alleoni@usp.br |
_version_ |
1800222793893150720 |