| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Solos. |
|
Data corrente: |
08/11/2016 |
|
Data da última atualização: |
10/11/2021 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
DORTZBACK, D.; PEREIRA, M. G.; ANJOS, L. H. C. dos; FONTANA, A.; SILVA NETO, E. de C. |
|
Afiliação: |
DENILSON DORTZBACH, EMATER-SC; MARCOS GERVASIO PEREIRA, UFRRJ; LÚCIA HELENA CUNHA DOS ANJOS, UFRRJ; ADEMIR FONTANA, CNPS; EDUARDO DE CARVALHO SILVA NETO, UFRRJ. |
|
Título: |
Genesis and classification of soils from subtropical mountain regions of Southern Brazil. |
|
Ano de publicação: |
2016 |
|
Fonte/Imprenta: |
Revista Brasileira de Ciência do Solo, Viçosa, MG, v. 40, 2016. |
|
DOI: |
https://doi.org/10.1590/18069657rbcs20150503 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Soils formed in high mountainous regions in southern Brazil are characterized by great accumulation of organic matter (OM) in the surface horizons and variation in the degree of development. We hypothesized that soil properties and genesis are influenced by the interaction of parent materials and climate factors, which differ depending on the location along the altitudinal gradient. The goal of this study was to characterize and classify the soil, evaluate soil distribution, and determine the interactive effects of soil-forming factors in the subtropical mountain regions in Santa Catarina state. Soil samples were collected in areas known for wine production, for a total of 38 modal profiles. Based on morphological, physical, and chemical properties, soils were evaluated for pedogenesis and classified according to the Brazilian System of Soil Classification, with equivalent classes in the World Reference Basis (WRB). The results indicated that pedogenesis was strongly influenced by the parent material, weather, and relief. In the areas where basic effusive rocks (basalt) were observed, there was formation of extensive areas of clayey soils with reddish color and higher iron oxide contents. There was a predominance of Nitossolos Vermelhos and Háplicos (Nitisols), Latossolos Vermelhos (Ferralsols), and Cambissolos Háplicos (Cambisols), highlighting the pedogenetic processes of eluviation, illuviation of clay, and latosolization in conditions of year-long, large-volume, well-distributed rainfall and stability of land forms. In areas with acid effusive rocks (rhyodacites), medial or clayey soils were observed with lower iron oxide content, invariably acidic, and with low base content. For these soils, relief promoted substantial removal of material, resulting in intense rejuvenation, with a predominance of Cambissolos Háplicos (Cambisols) and lesser occurrence of Nitossolos Brunos (Nitisols) and Neossolos Litólicos (Leptosols). Soils formed from sedimentary rocks also tended to be more acidic, but with higher sand content, and the soils identified were Cambissolos Háplicos and Húmicos (Cambisols). Cluster analysis separated the soil profiles into three groups: the first and largest was formed by profiles originating from sedimentary rocks and rhyodacites; the second, smaller group was formed by four profiles in the Água Doce region (acidic rocks); and the third was formed by profiles derived from basalt. Discriminant analysis was effective in grouping soil classes. Thus, the study highlighted the importance of geology in the formation of soils in this landscape associated with climate and relief. MenosSoils formed in high mountainous regions in southern Brazil are characterized by great accumulation of organic matter (OM) in the surface horizons and variation in the degree of development. We hypothesized that soil properties and genesis are influenced by the interaction of parent materials and climate factors, which differ depending on the location along the altitudinal gradient. The goal of this study was to characterize and classify the soil, evaluate soil distribution, and determine the interactive effects of soil-forming factors in the subtropical mountain regions in Santa Catarina state. Soil samples were collected in areas known for wine production, for a total of 38 modal profiles. Based on morphological, physical, and chemical properties, soils were evaluated for pedogenesis and classified according to the Brazilian System of Soil Classification, with equivalent classes in the World Reference Basis (WRB). The results indicated that pedogenesis was strongly influenced by the parent material, weather, and relief. In the areas where basic effusive rocks (basalt) were observed, there was formation of extensive areas of clayey soils with reddish color and higher iron oxide contents. There was a predominance of Nitossolos Vermelhos and Háplicos (Nitisols), Latossolos Vermelhos (Ferralsols), and Cambissolos Háplicos (Cambisols), highlighting the pedogenetic processes of eluviation, illuviation of clay, and latosolization in conditions of year-long, large-volume, well-dis... Mostrar Tudo |
|
Palavras-Chave: |
Classificação taxonômica; Formação do solo. |
|
Thesagro: |
Geologia. |
|
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/149639/1/2016-068.pdf
|
|
Marc: |
LEADER 03348naa a2200217 a 4500
001 2055972
005 2021-11-10
008 2016 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1590/18069657rbcs20150503$2DOI
100 1 $aDORTZBACK, D.
245 $aGenesis and classification of soils from subtropical mountain regions of Southern Brazil.$h[electronic resource]
260 $c2016
520 $aSoils formed in high mountainous regions in southern Brazil are characterized by great accumulation of organic matter (OM) in the surface horizons and variation in the degree of development. We hypothesized that soil properties and genesis are influenced by the interaction of parent materials and climate factors, which differ depending on the location along the altitudinal gradient. The goal of this study was to characterize and classify the soil, evaluate soil distribution, and determine the interactive effects of soil-forming factors in the subtropical mountain regions in Santa Catarina state. Soil samples were collected in areas known for wine production, for a total of 38 modal profiles. Based on morphological, physical, and chemical properties, soils were evaluated for pedogenesis and classified according to the Brazilian System of Soil Classification, with equivalent classes in the World Reference Basis (WRB). The results indicated that pedogenesis was strongly influenced by the parent material, weather, and relief. In the areas where basic effusive rocks (basalt) were observed, there was formation of extensive areas of clayey soils with reddish color and higher iron oxide contents. There was a predominance of Nitossolos Vermelhos and Háplicos (Nitisols), Latossolos Vermelhos (Ferralsols), and Cambissolos Háplicos (Cambisols), highlighting the pedogenetic processes of eluviation, illuviation of clay, and latosolization in conditions of year-long, large-volume, well-distributed rainfall and stability of land forms. In areas with acid effusive rocks (rhyodacites), medial or clayey soils were observed with lower iron oxide content, invariably acidic, and with low base content. For these soils, relief promoted substantial removal of material, resulting in intense rejuvenation, with a predominance of Cambissolos Háplicos (Cambisols) and lesser occurrence of Nitossolos Brunos (Nitisols) and Neossolos Litólicos (Leptosols). Soils formed from sedimentary rocks also tended to be more acidic, but with higher sand content, and the soils identified were Cambissolos Háplicos and Húmicos (Cambisols). Cluster analysis separated the soil profiles into three groups: the first and largest was formed by profiles originating from sedimentary rocks and rhyodacites; the second, smaller group was formed by four profiles in the Água Doce region (acidic rocks); and the third was formed by profiles derived from basalt. Discriminant analysis was effective in grouping soil classes. Thus, the study highlighted the importance of geology in the formation of soils in this landscape associated with climate and relief.
650 $aGeologia
653 $aClassificação taxonômica
653 $aFormação do solo
700 1 $aPEREIRA, M. G.
700 1 $aANJOS, L. H. C. dos
700 1 $aFONTANA, A.
700 1 $aSILVA NETO, E. de C.
773 $tRevista Brasileira de Ciência do Solo, Viçosa, MG$gv. 40, 2016.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Solos (CNPS) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Unidades Centrais. |
|
Data corrente: |
10/05/2011 |
|
Data da última atualização: |
07/06/2013 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
C - 0 |
|
Autoria: |
MATTOS, L. M. de; BRONDIZIO, E.; ROMEIRO, A.; ORAIR, R. |
|
Afiliação: |
LUCIANO MANSOR DE MATTOS, DTT; EDUARDO BRONDIZIO, INDIANA UNIVERSITY; ADEMAR ROMEIRO, UNIVERSIDADE ESTAUDAL DE CAMPINAS; RODRIGO ORAIR, IPEA. |
|
Título: |
Agricultura de pequena escala e suas implicações na transição agroecológica na Amazônia brasileira. |
|
Ano de publicação: |
2010 |
|
Fonte/Imprenta: |
Amazônica Revista de Antropologia, v.2, n. 2, p. 220-248, 2010 |
|
Páginas: |
220-248 |
|
Idioma: |
Português |
|
Conteúdo: |
Os dados do Censo Agropecuário 2006 apresentam um retrato da agricultura brasileira de pequena escala e realçam a sua importância na produção de alimentos e na geração de empregos no campo. Dentro do contexto revelado no Censo, o presente artigo discute a implicação de diferentes termos, como agricultura tradicional e agricultura familiar, usados na definição de agricultura de pequena escala no Brasil. Como estudo de caso, o artigo utilizou dados de 2.400 lotes rurais familiares, localizados em sete projetos de colonização e selecionados pela política pública piloto Proambiente, para discutir a influência de variáveis (sócio-demográficas, econômicas e de infra-estrutura) no uso da terra na Amazônia brasileira. O artigo conclui que o acesso à infraestrutura e ao crédito rural são importantes na promoção de diferentes trajetórias de transição agroecológica entre produtores de pequena escala da Amazônia brasileira. |
|
Palavras-Chave: |
Agricultura tradicional; Economia ecológica. |
|
Thesagro: |
Agricultura Familiar; Economia Agrícola; Uso da Terra. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/33942/1/Agricultura-de-pequena.pdf
|
|
Marc: |
LEADER 01659naa a2200229 a 4500
001 1888202
005 2013-06-07
008 2010 bl uuuu u00u1 u #d
100 1 $aMATTOS, L. M. de
245 $aAgricultura de pequena escala e suas implicações na transição agroecológica na Amazônia brasileira.$h[electronic resource]
260 $c2010
300 $a220-248
520 $aOs dados do Censo Agropecuário 2006 apresentam um retrato da agricultura brasileira de pequena escala e realçam a sua importância na produção de alimentos e na geração de empregos no campo. Dentro do contexto revelado no Censo, o presente artigo discute a implicação de diferentes termos, como agricultura tradicional e agricultura familiar, usados na definição de agricultura de pequena escala no Brasil. Como estudo de caso, o artigo utilizou dados de 2.400 lotes rurais familiares, localizados em sete projetos de colonização e selecionados pela política pública piloto Proambiente, para discutir a influência de variáveis (sócio-demográficas, econômicas e de infra-estrutura) no uso da terra na Amazônia brasileira. O artigo conclui que o acesso à infraestrutura e ao crédito rural são importantes na promoção de diferentes trajetórias de transição agroecológica entre produtores de pequena escala da Amazônia brasileira.
650 $aAgricultura Familiar
650 $aEconomia Agrícola
650 $aUso da Terra
653 $aAgricultura tradicional
653 $aEconomia ecológica
700 1 $aBRONDIZIO, E.
700 1 $aROMEIRO, A.
700 1 $aORAIR, R.
773 $tAmazônica Revista de Antropologia$gv.2, n. 2, p. 220-248, 2010
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Unidades Centrais (AI-SEDE) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
