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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
27/01/2004 |
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Data da última atualização: |
27/01/2004 |
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Autoria: |
GRANT, J. |
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Título: |
Wood pulp and allied products. |
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Edição: |
2.ed. |
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Ano de publicação: |
1947 |
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Fonte/Imprenta: |
London: Leonard Hill, 1947. |
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Páginas: |
312p. |
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Descrição Física: |
il. |
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Idioma: |
Inglês |
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Conteúdo: |
Cellulose and the wood fibre. The identification and evaluation of pulping woods. The preparation of wood for pulping. The mechanical or groundwood process. The bleaching of wood pulp. Theory. The bleaching of wood pulp in practice. The mechanical purification and de-watering of wood pulp. By-products from wood and wood pulping processes. Testing methods. Physical. Testing methods. Chemical tests. Tests for Rayon and specialty pulps. The uses of wood pulp. The paper and board industries. |
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Palavras-Chave: |
Polpa de madeira; Tecnologia da madeira. |
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Thesagro: |
Processamento. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00897nam a2200169 a 4500
001 1404997
005 2004-01-27
008 1947 bl uuuu 00u1 u #d
100 1 $aGRANT, J.
245 $aWood pulp and allied products.
250 $a2.ed.
260 $aLondon: Leonard Hill$c1947
300 $a312p.$cil.
520 $aCellulose and the wood fibre. The identification and evaluation of pulping woods. The preparation of wood for pulping. The mechanical or groundwood process. The bleaching of wood pulp. Theory. The bleaching of wood pulp in practice. The mechanical purification and de-watering of wood pulp. By-products from wood and wood pulping processes. Testing methods. Physical. Testing methods. Chemical tests. Tests for Rayon and specialty pulps. The uses of wood pulp. The paper and board industries.
650 $aProcessamento
653 $aPolpa de madeira
653 $aTecnologia da madeira
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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Registro Completo
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
25/10/2013 |
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Data da última atualização: |
19/07/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
SILVA FIALHO, J.; AGUIAR, M. I. de; MAIA, L. dos S.; MAGALHÃES, R. B.; ARAÚJO, F. da C. S. de; CAMPANHA, M. M.; OLIVEIRA, T. S. de. |
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Afiliação: |
MONICA MATOSO CAMPANHA, CNPMS. |
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Título: |
Soil quality, resistance and resilience in traditional agricultural and agroforestry ecosystems in Brazil's semiarid region. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
African Journal of Agricultural Research, v. 8, n. 40, p. 5020-5031, Oct. 2013. |
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DOI: |
10.5897/AJAR2013.6712 |
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Idioma: |
Inglês |
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Conteúdo: |
Agroforestry represents an alternative to traditional agricultural systems in semiarid regions, since it effectively provides soil coverage and improves the amount and quality of soil organic matter. The sustainability of agricultural systems can be assessed by evaluating soil quality, resistance and resilience. Therefore, this work evaluated soil quality, resistance and resilience under traditional cropping and agroforestry systems. The study took place at an experimental station in Brazil’s semiarid northeast region. Studied land use systems include agrosilvopastoral, silvopastoral and traditional cropping, as well as areas under traditional fallow for six and nine years and unaltered ecosystem. Small trenches were dug randomly to collect soil from three depth increments. Soil Quality (SQ) was assessed using chemical, physical and biological indicators. Based on these indicators, resistance, resilience and soil quality indices were calculated. The index quality of the soil was generated using soil water retention, nutrient supply and biological activity promotion functions. Comparisons of index means indicate that agroforests maintained SQ, while traditional fallow systems resulted in improved SQ up to levels similar to the unaltered ecosystem. Traditional cropping lead to a reduction in SQ, resistance and resilience. Agroforestry systems are sustainable. Fallow can improve soil quality, soil resistance and resilience. |
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Palavras-Chave: |
Agrossilvipastoril; Silvipastoril; Sustentabilidade agrícola. |
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Thesagro: |
Manejo do solo. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/91497/1/Soil-quality.pdf
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Marc: |
LEADER 02287naa a2200253 a 4500
001 1969438
005 2017-07-19
008 2013 bl uuuu u00u1 u #d
024 7 $a10.5897/AJAR2013.6712$2DOI
100 1 $aSILVA FIALHO, J.
245 $aSoil quality, resistance and resilience in traditional agricultural and agroforestry ecosystems in Brazil's semiarid region.$h[electronic resource]
260 $c2013
520 $aAgroforestry represents an alternative to traditional agricultural systems in semiarid regions, since it effectively provides soil coverage and improves the amount and quality of soil organic matter. The sustainability of agricultural systems can be assessed by evaluating soil quality, resistance and resilience. Therefore, this work evaluated soil quality, resistance and resilience under traditional cropping and agroforestry systems. The study took place at an experimental station in Brazil’s semiarid northeast region. Studied land use systems include agrosilvopastoral, silvopastoral and traditional cropping, as well as areas under traditional fallow for six and nine years and unaltered ecosystem. Small trenches were dug randomly to collect soil from three depth increments. Soil Quality (SQ) was assessed using chemical, physical and biological indicators. Based on these indicators, resistance, resilience and soil quality indices were calculated. The index quality of the soil was generated using soil water retention, nutrient supply and biological activity promotion functions. Comparisons of index means indicate that agroforests maintained SQ, while traditional fallow systems resulted in improved SQ up to levels similar to the unaltered ecosystem. Traditional cropping lead to a reduction in SQ, resistance and resilience. Agroforestry systems are sustainable. Fallow can improve soil quality, soil resistance and resilience.
650 $aManejo do solo
653 $aAgrossilvipastoril
653 $aSilvipastoril
653 $aSustentabilidade agrícola
700 1 $aAGUIAR, M. I. de
700 1 $aMAIA, L. dos S.
700 1 $aMAGALHÃES, R. B.
700 1 $aARAÚJO, F. da C. S. de
700 1 $aCAMPANHA, M. M.
700 1 $aOLIVEIRA, T. S. de
773 $tAfrican Journal of Agricultural Research$gv. 8, n. 40, p. 5020-5031, Oct. 2013.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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