Estimate of the Leaf Area Index (LAI) and Biomass in pasture in the state of Rondônia - Brazil
Autor(a) principal: | |
---|---|
Data de Publicação: | 2009 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional do INPA |
Texto Completo: | https://repositorio.inpa.gov.br/handle/1/14063 |
Resumo: | Monthly measurements of the grass height, total above-ground biomass and the proportions of live and dead biomass, Specific Leaf Area (SLA) and Leaf Area Index (LAI) were made in one cattle ranch at the Fazenda Nossa Senhora (FNS) (February of 1999 to January of 2005) and also in Rolim de Moura (RDM) (February to March of 1999) in Rondônia state. The predominant grass species is Urochloa brizantha (Hochst. ex A. Rich) R. D. Webster (covering 99% of the area in FNS and 76% in RDM), with minor patches of Urochloa humidicula. This pasture was regularly grazed. The average grass height was 0.16 m but monthly value varied between 0.09 m after intensive grazing in the dry season to 0.32 m in a wet season without grazing. The LAI, total biomass, dead plant material, live above-ground plant material and SLA average 2,5 m 2 m -2, 2202 kg ha -1, 2916 kg ha -1 and 19 m 2 kg -1 respectively. The monthly average above-ground biomass showed little seasonal variation, but annual averages ranged from 4224 kg ha -1 in 2002 to 6667 kg ha -1 in 2003. Live biomass was significantly higher during the wet season than during the dry season (3229 versus 2529 kg ha -1) whereas dead biomass was higher during the dry season than during the wet season (2542 versus 1894 kg ha -1). The groundwater levels changes from -3.1 m to -6.5 m during the wet and dry seasons, respectively. The annual average of SLA was 16.3 m 2 kg -1 in 1999 and 20.4 m 2 kg -1 in 2001. And for LAI was 1.5 in 2000 to 2.8 in 2003. The Albedo changes from 0.18 down to 0.16 at higher values of LAI. |
id |
INPA-2_cb0a9885eaf542b2b620b9e98351114c |
---|---|
oai_identifier_str |
oai:repositorio:1/14063 |
network_acronym_str |
INPA-2 |
network_name_str |
Repositório Institucional do INPA |
repository_id_str |
|
spelling |
Zanchi, Fabrício BertonWaterloo, M. J.Aguiar, Leonardo José GonçalvesVon Randow, CelsoKruijt, Bart J.Cardoso, Fernando LuizManzi, Antônio Ocimar2020-04-24T16:27:54Z2020-04-24T16:27:54Z2009https://repositorio.inpa.gov.br/handle/1/1406310.1590/S0044-59672009000200012Monthly measurements of the grass height, total above-ground biomass and the proportions of live and dead biomass, Specific Leaf Area (SLA) and Leaf Area Index (LAI) were made in one cattle ranch at the Fazenda Nossa Senhora (FNS) (February of 1999 to January of 2005) and also in Rolim de Moura (RDM) (February to March of 1999) in Rondônia state. The predominant grass species is Urochloa brizantha (Hochst. ex A. Rich) R. D. Webster (covering 99% of the area in FNS and 76% in RDM), with minor patches of Urochloa humidicula. This pasture was regularly grazed. The average grass height was 0.16 m but monthly value varied between 0.09 m after intensive grazing in the dry season to 0.32 m in a wet season without grazing. The LAI, total biomass, dead plant material, live above-ground plant material and SLA average 2,5 m 2 m -2, 2202 kg ha -1, 2916 kg ha -1 and 19 m 2 kg -1 respectively. The monthly average above-ground biomass showed little seasonal variation, but annual averages ranged from 4224 kg ha -1 in 2002 to 6667 kg ha -1 in 2003. Live biomass was significantly higher during the wet season than during the dry season (3229 versus 2529 kg ha -1) whereas dead biomass was higher during the dry season than during the wet season (2542 versus 1894 kg ha -1). The groundwater levels changes from -3.1 m to -6.5 m during the wet and dry seasons, respectively. The annual average of SLA was 16.3 m 2 kg -1 in 1999 and 20.4 m 2 kg -1 in 2001. And for LAI was 1.5 in 2000 to 2.8 in 2003. The Albedo changes from 0.18 down to 0.16 at higher values of LAI.Volume 39, Número 2, Pags. 335-348Attribution-NonCommercial-NoDerivs 3.0 Brazilhttp://creativecommons.org/licenses/by-nc-nd/3.0/br/info:eu-repo/semantics/openAccessBosUrochloaUrochloa BrizanthaEstimate of the Leaf Area Index (LAI) and Biomass in pasture in the state of Rondônia - BrazilEstimativa do Índice de Área Foliar (IAF) e Biomassa em pastagem no estado de Rondônia, Brasilinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleActa Amazonicaporreponame:Repositório Institucional do INPAinstname:Instituto Nacional de Pesquisas da Amazônia (INPA)instacron:INPAORIGINALartigo-inpa.pdfapplication/pdf921662https://repositorio.inpa.gov.br/bitstream/1/14063/1/artigo-inpa.pdf8b56b5c28f5fa1926e96c6112fad3af4MD51CC-LICENSElicense_rdfapplication/octet-stream914https://repositorio.inpa.gov.br/bitstream/1/14063/2/license_rdf4d2950bda3d176f570a9f8b328dfbbefMD521/140632020-07-13 13:38:34.18oai:repositorio:1/14063Repositório de PublicaçõesPUBhttps://repositorio.inpa.gov.br/oai/requestopendoar:2020-07-13T17:38:34Repositório Institucional do INPA - Instituto Nacional de Pesquisas da Amazônia (INPA)false |
dc.title.pt_BR.fl_str_mv |
Estimate of the Leaf Area Index (LAI) and Biomass in pasture in the state of Rondônia - Brazil |
dc.title.alternative.pt_BR.fl_str_mv |
Estimativa do Índice de Área Foliar (IAF) e Biomassa em pastagem no estado de Rondônia, Brasil |
title |
Estimate of the Leaf Area Index (LAI) and Biomass in pasture in the state of Rondônia - Brazil |
spellingShingle |
Estimate of the Leaf Area Index (LAI) and Biomass in pasture in the state of Rondônia - Brazil Zanchi, Fabrício Berton Bos Urochloa Urochloa Brizantha |
title_short |
Estimate of the Leaf Area Index (LAI) and Biomass in pasture in the state of Rondônia - Brazil |
title_full |
Estimate of the Leaf Area Index (LAI) and Biomass in pasture in the state of Rondônia - Brazil |
title_fullStr |
Estimate of the Leaf Area Index (LAI) and Biomass in pasture in the state of Rondônia - Brazil |
title_full_unstemmed |
Estimate of the Leaf Area Index (LAI) and Biomass in pasture in the state of Rondônia - Brazil |
title_sort |
Estimate of the Leaf Area Index (LAI) and Biomass in pasture in the state of Rondônia - Brazil |
author |
Zanchi, Fabrício Berton |
author_facet |
Zanchi, Fabrício Berton Waterloo, M. J. Aguiar, Leonardo José Gonçalves Von Randow, Celso Kruijt, Bart J. Cardoso, Fernando Luiz Manzi, Antônio Ocimar |
author_role |
author |
author2 |
Waterloo, M. J. Aguiar, Leonardo José Gonçalves Von Randow, Celso Kruijt, Bart J. Cardoso, Fernando Luiz Manzi, Antônio Ocimar |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Zanchi, Fabrício Berton Waterloo, M. J. Aguiar, Leonardo José Gonçalves Von Randow, Celso Kruijt, Bart J. Cardoso, Fernando Luiz Manzi, Antônio Ocimar |
dc.subject.eng.fl_str_mv |
Bos Urochloa Urochloa Brizantha |
topic |
Bos Urochloa Urochloa Brizantha |
description |
Monthly measurements of the grass height, total above-ground biomass and the proportions of live and dead biomass, Specific Leaf Area (SLA) and Leaf Area Index (LAI) were made in one cattle ranch at the Fazenda Nossa Senhora (FNS) (February of 1999 to January of 2005) and also in Rolim de Moura (RDM) (February to March of 1999) in Rondônia state. The predominant grass species is Urochloa brizantha (Hochst. ex A. Rich) R. D. Webster (covering 99% of the area in FNS and 76% in RDM), with minor patches of Urochloa humidicula. This pasture was regularly grazed. The average grass height was 0.16 m but monthly value varied between 0.09 m after intensive grazing in the dry season to 0.32 m in a wet season without grazing. The LAI, total biomass, dead plant material, live above-ground plant material and SLA average 2,5 m 2 m -2, 2202 kg ha -1, 2916 kg ha -1 and 19 m 2 kg -1 respectively. The monthly average above-ground biomass showed little seasonal variation, but annual averages ranged from 4224 kg ha -1 in 2002 to 6667 kg ha -1 in 2003. Live biomass was significantly higher during the wet season than during the dry season (3229 versus 2529 kg ha -1) whereas dead biomass was higher during the dry season than during the wet season (2542 versus 1894 kg ha -1). The groundwater levels changes from -3.1 m to -6.5 m during the wet and dry seasons, respectively. The annual average of SLA was 16.3 m 2 kg -1 in 1999 and 20.4 m 2 kg -1 in 2001. And for LAI was 1.5 in 2000 to 2.8 in 2003. The Albedo changes from 0.18 down to 0.16 at higher values of LAI. |
publishDate |
2009 |
dc.date.issued.fl_str_mv |
2009 |
dc.date.accessioned.fl_str_mv |
2020-04-24T16:27:54Z |
dc.date.available.fl_str_mv |
2020-04-24T16:27:54Z |
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://repositorio.inpa.gov.br/handle/1/14063 |
dc.identifier.doi.none.fl_str_mv |
10.1590/S0044-59672009000200012 |
url |
https://repositorio.inpa.gov.br/handle/1/14063 |
identifier_str_mv |
10.1590/S0044-59672009000200012 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.ispartof.pt_BR.fl_str_mv |
Volume 39, Número 2, Pags. 335-348 |
dc.rights.driver.fl_str_mv |
Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Acta Amazonica |
publisher.none.fl_str_mv |
Acta Amazonica |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional do INPA instname:Instituto Nacional de Pesquisas da Amazônia (INPA) instacron:INPA |
instname_str |
Instituto Nacional de Pesquisas da Amazônia (INPA) |
instacron_str |
INPA |
institution |
INPA |
reponame_str |
Repositório Institucional do INPA |
collection |
Repositório Institucional do INPA |
bitstream.url.fl_str_mv |
https://repositorio.inpa.gov.br/bitstream/1/14063/1/artigo-inpa.pdf https://repositorio.inpa.gov.br/bitstream/1/14063/2/license_rdf |
bitstream.checksum.fl_str_mv |
8b56b5c28f5fa1926e96c6112fad3af4 4d2950bda3d176f570a9f8b328dfbbef |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 |
repository.name.fl_str_mv |
Repositório Institucional do INPA - Instituto Nacional de Pesquisas da Amazônia (INPA) |
repository.mail.fl_str_mv |
|
_version_ |
1809928900050944000 |