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Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 7
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Carbon stocks and pools in relation to the texture of kaolinitic soils from the Brazilian East Coast. Repositório Alice
GOMES, J. B. V.; SILVA, C. A.; FERREIRA, T. L. de A.; FERREIRA, M. M.; INDA, A. V.; CURI, N..
Extremely kaolinitic soils of Tertiary age elevations on the Brazilian east coast present a wide range of texture, which is recognized as one of the main factors controlling the soil organic matter contents. This study aimed to investigate the organic C storage of different compartments of kaolinitic soils. The studied soils had a wide particle size gradient, were under native forest vegetation, and located on Brazil?s eastern coast (Coruripe - CF, Umbaúba - UF, Nova Viçosa - VF, Sooretama - SF, and Itaboraí - IF). The forest cover of all sites allows to record soil properties reference values for a land use condition closer to that of the original sites. We determined soil organic C (SOC) content and SOC stock up to a depth of 1 m, C of topsoil (0.00-0.08...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Argilito caolítico; Estoque de carbono; Dissolved organic C; Aggregate size distribution; Coastal tablelands; Organic matter-mineral complexes; Solo; Soil.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1099369
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Comparação de espécies florestais nativas da Mata Atlântica de Sergipe. Infoteca-e
SIQUEIRA, E. R. de; REGO, G. M.; RIBEIRO, F. E.; SILVA, A. A. G. da.
bitstream/item/87370/1/CPATC-PESQ.-AND.-10-96.pdf
Tipo: Outras publicações técnicas (INFOTECA-E) Palavras-chave: Mata Atlântica; Tubuleiros costeiros; Baixada litorânea; Brasil; Sergipe; Coastal tablelands.
Ano: 1996 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/358574
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Estimation of precompression stress in an Ultisol cultivated with sugarcane AGRIAMBI
Mendes,Pericles M. B.; Rolim,Mário M.; Lima,Renato P. de; Pedrosa,Elvira M. R.; Tavares,Uilka E.; Simões Neto,Djalma E..
ABSTRACT Compressive soil properties are typically used for the understanding of compaction process. As an alternative to laboratory tests, pedo-transfer functions have been used to estimate the mechanical behaviour of soil as a function of soil physical parameters. The impact of soil bulk density (BD) and gravimetric water content (w) was examined on soil strength and pedo-transfer functions were proposed to predict the precompression stress (σp) in an Ultisol cultivated with sugarcane. Undisturbed soil cores were sampled at the depths of 0-0.20 and 0.20-0.40 m, subjected to different water contents, and subsequently, compression tests were performed to determine σp. The data were subjected to analysis of variance and regression analysis. Bulk density and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Compaction; Soil compressibility; Coastal tablelands.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000500336
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Index of soil physical quality of hardsetting soils on the brazilian coast Rev. Bras. Ciênc. Solo
Lima,Herdjania Veras de; Silva,Álvaro Pires da; Giarola,Neyde Fabíola Balarezzo; Imhoff,Sílvia.
Many soils have a hard-setting behavior, also known as cohesive or "coesos". In such soils, the penetration resistance increases markedly when dry and decreases considerably when moist, creating serious limitations for plant emergence and growth. To evaluate the level of structure degradation in hard-setting soils with different texture classes and to create an index for assessing soil hardness levels in hard-setting soils, six soil representative profiles were selected in the field in various regions of Brazil. The following indices were tested: S, which measures soil physical quality, and H , which analyzes the degree of hardness and the effective stress in the soil during drying. Both indices were calculated using previously described functions based on...
Tipo: Info:eu-repo/semantics/other Palavras-chave: S index; Coastal tablelands; Soil consistency; Hardened horizons.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000600007
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Soil attributes under agroecosystems and forest vegetation in the coastal tablelands of northestern Brazil Ciência e Agrotecnologia
Gomes,João Bosco Vasconcellos; Fernandes,Marcelo Ferreira; Barreto,Antonio Carlos; Araújo Filho,José Coelho de; Curi,Nilton.
This study evaluated the changes occurred in a set of soil attributes, particularly those related to the dynamics of soil organic carbon (SOC), as a function of the replacement of native forest for agricultural ecosystems of regional importance in the coastal tablelands of Northeastern Brazil (orange, coconut, eucalyptus and sugarcane). Six commercial sites under these agroecosystems were compared to neighboring areas of native forest in five areas along this region (Coruripe, Umbaúba, Acajutiba, Cruz das Almas and Nova Viçosa). Soil samples were taken from 0-5 and 5-20 cm depth and analyzed for particle size distribution, bulk density, organic C (OC), particulate organic matter, C in soil solution, microbial biomass C, total cation exchange capacity and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cohesive soils; Organic C; Coastal tablelands; Kaolinitic soils.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542012000600007
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Soil attributes under agroecosystems and forest vegetationin the coastal tablelands of Northestern Brazil. Repositório Alice
GOMES, J. B. V.; FERNANDES, M. F.; BARRETO, A. C.; ARAUJO FILHO, J. C. de; CURI, N..
This study evaluated the changes occurred in a set of soil attributes, particularly those related to the dynamics of soil organic carbon (SOC), as a function of the replacement of native forest for agricultural ecosystems of regional importance in the coastal tablelands of Northeastern Brazil (orange, coconut, eucalyptus and sugarcane). Six commercial sites under these agroecosystems were compared to neighboring areas of native forest in five areas along this region (Coruripe, Umbaúba, Acajutiba, Cruz das Almas and Nova Viçosa). Soil samples were taken from 0-5 and 5-20 cm depth and analyzed for particle size distribution, bulk density, organic C (OC), particulate organic matter, C in soil solution, microbial biomass C, total cation exchange capacity and...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Cohesive soils; Organic C; Coastal tablelands; Kaolinitic soils; Caráter coeso; C orgânico; Tabuleiros costeiros; Solos cauliníticoS.
Ano: 2012 URL: http://www.alice.cnptia.embrapa.br/handle/doc/941921
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Zoneamento agrossocioeconômico dos tabuleiros costeiros e da baixada litorânea de sergipe. Repositório Alice
MOTA, D. M. da; TAVARES, E. D.; FONTES, H. R.; FERREIRA, J. M. S.; CARON, P..
A adoção do enfoque de Pesquisaa e Desenvolvimento pela Empresa Brasileira de Pesquisa Agropecuária, EMBRAPA, estimulou o desenvolvimento de metodologias que buscam adaptar as necessidades de grupos sociais específicos, dentro da consepção de sustentabilidade. Este trabalho teve como objetivo zonear e conhecer as características agrossocioeconômicas de Sergipe na área dos tabuleiros Costeiros e da Baixada Litorânea visando identificar as diferentes problemáticas de desenvolvimento da região. A metodologia utilizada foi a de "entrevistas com pessoas-chaves", que permite a abtenção de informações atualizadas sobre a problemática agrária a partir da percepção dos agentes sociais que interagem no meio rural. O trabalho permitiu o zoneamento da região dos...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Zoneamento; Tabuleiro costeiro; Baixada litoranea; Brasil; Sergipe; Agrosocialeconomic; Zoning; Coastal tablelands; Litoral region.
Ano: 1997 URL: http://www.alice.cnptia.embrapa.br/handle/doc/354481
Registros recuperados: 7
Primeira ... 1 ... Última
 

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