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 | Acesso ao texto completo restrito à biblioteca da Embrapa Solos. Para informações adicionais entre em contato com cnps.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
14/02/2014 |
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Data da última atualização: |
20/09/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ARVOR, D.; DUBREUIL, V.; SIMÕES, M.; Beguè, A. |
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Afiliação: |
DAMIEN ARVOR; VINCENT DUBREUIL; MARGARETH GONCALVES SIMOES, CNPS; AGNES BEGUÈ. |
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Título: |
Mapping and spatial analysis of the soybean agricultural frontier in Mato Grosso, Brazil, using remote sensing data. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
GeoJournal, v. 78, p. 833-850, 2013. |
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DOI: |
https://doi.org/10.1007/s10708-012-9469-3 |
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Idioma: |
Inglês |
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Conteúdo: |
The main pioneer frontier considered by geographers is the Amazonian pioneer frontier. The occupation of the Brazilian territory has been carried out through successive economic cycles. Currently, the expansion of soybean crops in Amazonia is considered as the last economic cycle involving new migrations to still unexplored areas. Mapping this frontier is necessary in order to better understand its drivers and think about efficient land use policies to struggle its progress. In this paper, we propose an innovative methodology for mapping the agricultural frontier in the Amazonian state of Mato Grosso (Brazil) using satellite data acquired during the 2000?2006 period. We assume that the frontier evolves through successive land-use stages such as wildlands, non-croplands, extensive croplands and intensive croplands areas. The transitions between two stages can then be monitored through land-use change analysis. A particular emphasis is given on three land-use transitions named ?deforestation?, ?economic? and ?intensification sub-frontiers?. In order to adapt this model for the use of remote sensing data, we defined (1) a relevant spatial scale corresponding to an agrarian locality, (2) relevant indices to qualify the land-use types and (3) rules applied on land-use types to define the frontier?s location. Our results highlight the dynamic of the agricultural frontier towards northern areas. We identified four main agricultural regions with different levels of agricultural intensification. We finally discuss these results with respect to governmental policies and economics for a better understanding of the frontier?s dynamic. MenosThe main pioneer frontier considered by geographers is the Amazonian pioneer frontier. The occupation of the Brazilian territory has been carried out through successive economic cycles. Currently, the expansion of soybean crops in Amazonia is considered as the last economic cycle involving new migrations to still unexplored areas. Mapping this frontier is necessary in order to better understand its drivers and think about efficient land use policies to struggle its progress. In this paper, we propose an innovative methodology for mapping the agricultural frontier in the Amazonian state of Mato Grosso (Brazil) using satellite data acquired during the 2000?2006 period. We assume that the frontier evolves through successive land-use stages such as wildlands, non-croplands, extensive croplands and intensive croplands areas. The transitions between two stages can then be monitored through land-use change analysis. A particular emphasis is given on three land-use transitions named ?deforestation?, ?economic? and ?intensification sub-frontiers?. In order to adapt this model for the use of remote sensing data, we defined (1) a relevant spatial scale corresponding to an agrarian locality, (2) relevant indices to qualify the land-use types and (3) rules applied on land-use types to define the frontier?s location. Our results highlight the dynamic of the agricultural frontier towards northern areas. We identified four main agricultural regions with different levels of agricultural inte... Mostrar Tudo |
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Palavras-Chave: |
Agricultural frontier; Crop expansion; Mato Grosso. |
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Thesagro: |
Sensoriamento Remoto. |
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Thesaurus Nal: |
Amazonia; Deforestation; Remote sensing; Sustainable agricultural intensification. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02469naa a2200265 a 4500
001 1979965
005 2021-09-20
008 2013 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s10708-012-9469-3$2DOI
100 1 $aARVOR, D.
245 $aMapping and spatial analysis of the soybean agricultural frontier in Mato Grosso, Brazil, using remote sensing data.$h[electronic resource]
260 $c2013
520 $aThe main pioneer frontier considered by geographers is the Amazonian pioneer frontier. The occupation of the Brazilian territory has been carried out through successive economic cycles. Currently, the expansion of soybean crops in Amazonia is considered as the last economic cycle involving new migrations to still unexplored areas. Mapping this frontier is necessary in order to better understand its drivers and think about efficient land use policies to struggle its progress. In this paper, we propose an innovative methodology for mapping the agricultural frontier in the Amazonian state of Mato Grosso (Brazil) using satellite data acquired during the 2000?2006 period. We assume that the frontier evolves through successive land-use stages such as wildlands, non-croplands, extensive croplands and intensive croplands areas. The transitions between two stages can then be monitored through land-use change analysis. A particular emphasis is given on three land-use transitions named ?deforestation?, ?economic? and ?intensification sub-frontiers?. In order to adapt this model for the use of remote sensing data, we defined (1) a relevant spatial scale corresponding to an agrarian locality, (2) relevant indices to qualify the land-use types and (3) rules applied on land-use types to define the frontier?s location. Our results highlight the dynamic of the agricultural frontier towards northern areas. We identified four main agricultural regions with different levels of agricultural intensification. We finally discuss these results with respect to governmental policies and economics for a better understanding of the frontier?s dynamic.
650 $aAmazonia
650 $aDeforestation
650 $aRemote sensing
650 $aSustainable agricultural intensification
650 $aSensoriamento Remoto
653 $aAgricultural frontier
653 $aCrop expansion
653 $aMato Grosso
700 1 $aDUBREUIL, V.
700 1 $aSIMÕES, M.
700 1 $aBeguè, A.
773 $tGeoJournal$gv. 78, p. 833-850, 2013.
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Registro original: |
Embrapa Solos (CNPS) |
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Registro Completo
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
07/04/2004 |
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Data da última atualização: |
27/07/2007 |
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Autoria: |
KLEPKER, D.; OLIVEIRA JUNIOR, A de; BORKERT, C. M. |
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Título: |
Critical levels of copper for soybean in cerrado soil. |
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Ano de publicação: |
2004 |
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Fonte/Imprenta: |
In: WORLD SOYBEAN RESEARCH CONFERENCE, 7.; INTERNATIONAL SOYBEAN PROCESSING AND UTILIZATION CONFERENCE, 4.; CONGRESSO BRASILEIRO DE SOJA, 3., 2004, Foz do Iguassu. Abstracts of contributed papers and posters. Londrina: Embrapa Soybean, 2004. |
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Páginas: |
p. 257. |
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Série: |
(Embrapa Soja. Documentos, 228). |
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Idioma: |
Inglês |
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Notas: |
Editado por Flávio Moscardi, Clara Beatriz Hoffmann-Campo, Odilon Ferreira Saraiva, Paulo Roberto Galerani, Francisco Carlos Krzyzanowski, Mercedes Concordia Carrão-Panizzi. |
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Conteúdo: |
In micronutrient (Zn, Mn, Cu and B) fertilization trials performed since 1997 at two sites in the Balsas, MA, region, copper was the only micronutrient shown to constantly increase soybean yields. Recommended doses and critical levels of Cu in the soil have been assessed using the Mehlich-1 extracting solution, in a Red-yellow Latosol (LVAd). Although both sites has the same soil types one is a sandy clay loam (27% of clay) and the other has clay texture (55% of clay). In the sandy clay loam critical Cu levels were determined in the growing seasons of 2000/01 and 2001/02 while in the clay soil they were determined only in the 2001/02. The Cu doses that gave the Maximum Economic Yield (MEY) were approximately 1 kg/ha of Cu in the sandy clay loam and 6.5 kg/ha in the clay soil. The critical levels for the Mehlich-1 solution in the sandy clay loam were 0.39 mg/dm3 and 0.59 mg/dm3 of Cu in the growing seasons of 2000/01 and 2001/02, respectively. In the clay soil, the critical level was 0.78 mg/dm3 of Cu. The higher critical level for Cu given in the clay soil, may be related to its higher organic matter (OM) content (57.5 g/kg) compared to the sandy clay loam soil (29.3 g/kg OM), as well as to its higher MEY doses. The fact that the critical levels of Cu and the critical range recommended (0.5 and 0.80 mg/dm3) vary with soil texture means that texture dependent recommendations should be developed to maximize efficiency of fertilizer use. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02309naa a2200181 a 4500
001 1466833
005 2007-07-27
008 2004 bl uuuu u00u1 u #d
100 1 $aKLEPKER, D.
245 $aCritical levels of copper for soybean in cerrado soil.
260 $c2004
300 $ap. 257.
490 $a(Embrapa Soja. Documentos, 228).
500 $aEditado por Flávio Moscardi, Clara Beatriz Hoffmann-Campo, Odilon Ferreira Saraiva, Paulo Roberto Galerani, Francisco Carlos Krzyzanowski, Mercedes Concordia Carrão-Panizzi.
520 $aIn micronutrient (Zn, Mn, Cu and B) fertilization trials performed since 1997 at two sites in the Balsas, MA, region, copper was the only micronutrient shown to constantly increase soybean yields. Recommended doses and critical levels of Cu in the soil have been assessed using the Mehlich-1 extracting solution, in a Red-yellow Latosol (LVAd). Although both sites has the same soil types one is a sandy clay loam (27% of clay) and the other has clay texture (55% of clay). In the sandy clay loam critical Cu levels were determined in the growing seasons of 2000/01 and 2001/02 while in the clay soil they were determined only in the 2001/02. The Cu doses that gave the Maximum Economic Yield (MEY) were approximately 1 kg/ha of Cu in the sandy clay loam and 6.5 kg/ha in the clay soil. The critical levels for the Mehlich-1 solution in the sandy clay loam were 0.39 mg/dm3 and 0.59 mg/dm3 of Cu in the growing seasons of 2000/01 and 2001/02, respectively. In the clay soil, the critical level was 0.78 mg/dm3 of Cu. The higher critical level for Cu given in the clay soil, may be related to its higher organic matter (OM) content (57.5 g/kg) compared to the sandy clay loam soil (29.3 g/kg OM), as well as to its higher MEY doses. The fact that the critical levels of Cu and the critical range recommended (0.5 and 0.80 mg/dm3) vary with soil texture means that texture dependent recommendations should be developed to maximize efficiency of fertilizer use.
700 1 $aOLIVEIRA JUNIOR, A de
700 1 $aBORKERT, C. M.
773 $tIn: WORLD SOYBEAN RESEARCH CONFERENCE, 7.; INTERNATIONAL SOYBEAN PROCESSING AND UTILIZATION CONFERENCE, 4.; CONGRESSO BRASILEIRO DE SOJA, 3., 2004, Foz do Iguassu. Abstracts of contributed papers and posters. Londrina: Embrapa Soybean, 2004.
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