NDVI and meteorological data as indicators of the Pampa biome natural grasslands growth
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/185262 |
Resumo: | The present study aimed to characterize the dynamics of NDVI and meteorological conditions, relating both to the annual dynamics of biomass accumulation in natural pastures of the Pampa biome as a way of subsidizing growth modeling. Forage accumulation rate data from a long-term experiment, NDVI data from the MODIS images, and meteorological data measured at the surface were used. We verify that the agrometeorological element associated to the accumulation of forage in the natural grasslands is different according to the season, which is typical of the subtropical climate. Winter is the critical season for livestock production due to the lower forage accumulation rate and lower values of NDVI, conditioned by the decrease of solar radiation and air temperature. In the summer, the limiting factor to forage accumulation is the hydric condition. It was also verified that the variability in the growth of grasslands can be associated with the ENSO phenomenon, being the El Niño favorable and the La Niña unfavorable, especially in the spring-summer period. Considering the verified associations, spectral indices combined with agrometeorological elements are recommended to the adjustment of models of forage accumulation in the Pampa biome natural grasslands. |
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Fontana, Denise CybisJunges, Amanda HeemannBremm, CarolinaSchaparini, Laura PigattoMengue, Vagner PazWagner, Ana Paula LuzCarvalho, Paulo Cesar de Faccio2018-11-30T02:42:20Z20180006-8705http://hdl.handle.net/10183/185262001080068The present study aimed to characterize the dynamics of NDVI and meteorological conditions, relating both to the annual dynamics of biomass accumulation in natural pastures of the Pampa biome as a way of subsidizing growth modeling. Forage accumulation rate data from a long-term experiment, NDVI data from the MODIS images, and meteorological data measured at the surface were used. We verify that the agrometeorological element associated to the accumulation of forage in the natural grasslands is different according to the season, which is typical of the subtropical climate. Winter is the critical season for livestock production due to the lower forage accumulation rate and lower values of NDVI, conditioned by the decrease of solar radiation and air temperature. In the summer, the limiting factor to forage accumulation is the hydric condition. It was also verified that the variability in the growth of grasslands can be associated with the ENSO phenomenon, being the El Niño favorable and the La Niña unfavorable, especially in the spring-summer period. Considering the verified associations, spectral indices combined with agrometeorological elements are recommended to the adjustment of models of forage accumulation in the Pampa biome natural grasslands.application/pdfengBragantia, Campinas. Vol. 77, n. 2, (abr./jun. 2018), p. 404-414Sensoriamento remotoPastagem naturalBioma PampaModerate Resolution Imaging Spectroradiometer (MODIS)Biomass accumulationENSOGround dataNDVI and meteorological data as indicators of the Pampa biome natural grasslands growthinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001080068.pdf.txt001080068.pdf.txtExtracted Texttext/plain38293http://www.lume.ufrgs.br/bitstream/10183/185262/2/001080068.pdf.txt5e16d72e5d7c31e1d6c4c28a22e06989MD52ORIGINAL001080068.pdfTexto completo (inglês)application/pdf2342290http://www.lume.ufrgs.br/bitstream/10183/185262/1/001080068.pdf3daabec19f4d2d258c9e55396ef116a4MD5110183/1852622019-04-17 02:36:16.191717oai:www.lume.ufrgs.br:10183/185262Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2019-04-17T05:36:16Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
NDVI and meteorological data as indicators of the Pampa biome natural grasslands growth |
title |
NDVI and meteorological data as indicators of the Pampa biome natural grasslands growth |
spellingShingle |
NDVI and meteorological data as indicators of the Pampa biome natural grasslands growth Fontana, Denise Cybis Sensoriamento remoto Pastagem natural Bioma Pampa Moderate Resolution Imaging Spectroradiometer (MODIS) Biomass accumulation ENSO Ground data |
title_short |
NDVI and meteorological data as indicators of the Pampa biome natural grasslands growth |
title_full |
NDVI and meteorological data as indicators of the Pampa biome natural grasslands growth |
title_fullStr |
NDVI and meteorological data as indicators of the Pampa biome natural grasslands growth |
title_full_unstemmed |
NDVI and meteorological data as indicators of the Pampa biome natural grasslands growth |
title_sort |
NDVI and meteorological data as indicators of the Pampa biome natural grasslands growth |
author |
Fontana, Denise Cybis |
author_facet |
Fontana, Denise Cybis Junges, Amanda Heemann Bremm, Carolina Schaparini, Laura Pigatto Mengue, Vagner Paz Wagner, Ana Paula Luz Carvalho, Paulo Cesar de Faccio |
author_role |
author |
author2 |
Junges, Amanda Heemann Bremm, Carolina Schaparini, Laura Pigatto Mengue, Vagner Paz Wagner, Ana Paula Luz Carvalho, Paulo Cesar de Faccio |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Fontana, Denise Cybis Junges, Amanda Heemann Bremm, Carolina Schaparini, Laura Pigatto Mengue, Vagner Paz Wagner, Ana Paula Luz Carvalho, Paulo Cesar de Faccio |
dc.subject.por.fl_str_mv |
Sensoriamento remoto Pastagem natural Bioma Pampa Moderate Resolution Imaging Spectroradiometer (MODIS) |
topic |
Sensoriamento remoto Pastagem natural Bioma Pampa Moderate Resolution Imaging Spectroradiometer (MODIS) Biomass accumulation ENSO Ground data |
dc.subject.eng.fl_str_mv |
Biomass accumulation ENSO Ground data |
description |
The present study aimed to characterize the dynamics of NDVI and meteorological conditions, relating both to the annual dynamics of biomass accumulation in natural pastures of the Pampa biome as a way of subsidizing growth modeling. Forage accumulation rate data from a long-term experiment, NDVI data from the MODIS images, and meteorological data measured at the surface were used. We verify that the agrometeorological element associated to the accumulation of forage in the natural grasslands is different according to the season, which is typical of the subtropical climate. Winter is the critical season for livestock production due to the lower forage accumulation rate and lower values of NDVI, conditioned by the decrease of solar radiation and air temperature. In the summer, the limiting factor to forage accumulation is the hydric condition. It was also verified that the variability in the growth of grasslands can be associated with the ENSO phenomenon, being the El Niño favorable and the La Niña unfavorable, especially in the spring-summer period. Considering the verified associations, spectral indices combined with agrometeorological elements are recommended to the adjustment of models of forage accumulation in the Pampa biome natural grasslands. |
publishDate |
2018 |
dc.date.accessioned.fl_str_mv |
2018-11-30T02:42:20Z |
dc.date.issued.fl_str_mv |
2018 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/other |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/185262 |
dc.identifier.issn.pt_BR.fl_str_mv |
0006-8705 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001080068 |
identifier_str_mv |
0006-8705 001080068 |
url |
http://hdl.handle.net/10183/185262 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Bragantia, Campinas. Vol. 77, n. 2, (abr./jun. 2018), p. 404-414 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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application/pdf |
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Repositório Institucional da UFRGS |
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