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Registro Completo |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
22/11/2002 |
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Data da última atualização: |
22/11/2002 |
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Autoria: |
LAL, R. |
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Título: |
Soil erosion research on steep lands |
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Ano de publicação: |
1988 |
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Fonte/Imprenta: |
In: MOLDENHAUER, W.C.; HUDSON, N.W. Conservation farming on steep lands. Ankeny: Soil and Water Conservation Society, 1988. |
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Páginas: |
p.45-53 |
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Idioma: |
Inglês |
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Conteúdo: |
Sloping lands, which account for a substantial portion of the land resources in the world, are intensively cultivated in many of the world's regions. However, a precise resource inventory based on semi-detailed soil and topographic survey is not available for many regions. Sloping lands are components of fragile ecosystems that are susceptible to rapid soil degradation due to physical, chemical, and biological processes. Research needs on soil erosion include reliable measurements of soil and water losses under different land use systems. It is also important to evaluate the economic consequences of soil erosion, including knowledge of erosion-caused productivity declines. Basic research is also needed on the relative importance of different processes involvedin sediment origin and transporte in relation to slope gradient and length, direction of rainstorms and effective raind, rainsplash and its interactions with overland flow, critical areas contributing to sediments and water runoff, and mass movement. Assessing the degree of soil degradation and developing methods of restoring the productivity of degraded lands are important research priorities. Proven agricultural technologies for sloping lands are needed so these lands can be properly managed. Networking is a likely approach to accomplish this task of important research and development priorities. The reseach and training activities should be organized at the regional level. Overall coordination of the networks, performed by the WASWC, should involve ... MenosSloping lands, which account for a substantial portion of the land resources in the world, are intensively cultivated in many of the world's regions. However, a precise resource inventory based on semi-detailed soil and topographic survey is not available for many regions. Sloping lands are components of fragile ecosystems that are susceptible to rapid soil degradation due to physical, chemical, and biological processes. Research needs on soil erosion include reliable measurements of soil and water losses under different land use systems. It is also important to evaluate the economic consequences of soil erosion, including knowledge of erosion-caused productivity declines. Basic research is also needed on the relative importance of different processes involvedin sediment origin and transporte in relation to slope gradient and length, direction of rainstorms and effective raind, rainsplash and its interactions with overland flow, critical areas contributing to sediments and water runoff, and mass movement. Assessing the degree of soil degradation and developing methods of restoring the productivity of degraded lands are important research priorities. Proven agricultural technologies for sloping lands are needed so these lands can be properly managed. Networking is a likely approach to accomplish this task of important research and development priorities. The reseach and training activities should be organized at the regional level. Overall coordination of the networks, perfor... Mostrar Tudo |
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Palavras-Chave: |
Cultivo; Solos. |
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Thesagro: |
Água; Conservação; Manejo; Produção. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02084naa a2200205 a 4500
001 1327891
005 2002-11-22
008 1988 bl uuuu u00u1 u #d
100 1 $aLAL, R.
245 $aSoil erosion research on steep lands
260 $c1988
300 $ap.45-53
520 $aSloping lands, which account for a substantial portion of the land resources in the world, are intensively cultivated in many of the world's regions. However, a precise resource inventory based on semi-detailed soil and topographic survey is not available for many regions. Sloping lands are components of fragile ecosystems that are susceptible to rapid soil degradation due to physical, chemical, and biological processes. Research needs on soil erosion include reliable measurements of soil and water losses under different land use systems. It is also important to evaluate the economic consequences of soil erosion, including knowledge of erosion-caused productivity declines. Basic research is also needed on the relative importance of different processes involvedin sediment origin and transporte in relation to slope gradient and length, direction of rainstorms and effective raind, rainsplash and its interactions with overland flow, critical areas contributing to sediments and water runoff, and mass movement. Assessing the degree of soil degradation and developing methods of restoring the productivity of degraded lands are important research priorities. Proven agricultural technologies for sloping lands are needed so these lands can be properly managed. Networking is a likely approach to accomplish this task of important research and development priorities. The reseach and training activities should be organized at the regional level. Overall coordination of the networks, performed by the WASWC, should involve ...
650 $aÁgua
650 $aConservação
650 $aManejo
650 $aProdução
653 $aCultivo
653 $aSolos
773 $tIn: MOLDENHAUER, W.C.; HUDSON, N.W. Conservation farming on steep lands. Ankeny: Soil and Water Conservation Society, 1988.
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Registro original: |
Embrapa Solos (CNPS) |
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Registro Completo
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
21/06/2005 |
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Data da última atualização: |
04/04/2019 |
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Tipo da produção científica: |
Documentos |
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Autoria: |
ANDRIOLI, A.; PINHEIRO, R. R.; ALVES, F. S. F.; GOUVEIA, A. M. G. |
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Afiliação: |
ALICE ANDRIOLI, CNPC; RAYMUNDO RIZALDO PINHEIRO, CNPC; FRANCISCO SELMO FERNANDES ALVES, CNPC. |
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Título: |
Transmissão de doenças infecciosas através das biotecnologias reprodutivas em pequenos ruminantes. |
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Ano de publicação: |
2003 |
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Fonte/Imprenta: |
Sobral: Embrapa Caprinos, 2003. |
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Páginas: |
27 p. |
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Série: |
(Embrapa Caprinos. Documentos, 51). |
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Idioma: |
Português |
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Conteúdo: |
Este artigo de revisão reúne os textos sobre transmissão de doenças infecciosas através das biotecnologias reprodutivas, atendendo não somente aos técnicos do campo, mas também a classe produtora, ávida por conhecer e implementar as técnicas reprodutivas nos seus rebanhos. |
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Palavras-Chave: |
Biotecnologia animal; Pequenos ruminantes; Transmissão; Transmissão doença. |
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Thesagro: |
Animal; Biotecnologia; Caprino; Doença Animal; Ovino; Reprodução Animal; Transmissão de Doença. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/26684/1/DOC-51.pdf
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Marc: |
LEADER 01133nam a2200301 a 4500
001 1531310
005 2019-04-04
008 2003 bl uuuu u0uu1 u #d
100 1 $aANDRIOLI, A.
245 $aTransmissão de doenças infecciosas através das biotecnologias reprodutivas em pequenos ruminantes.
260 $aSobral: Embrapa Caprinos$c2003
300 $a27 p.
490 $a(Embrapa Caprinos. Documentos, 51).
520 $aEste artigo de revisão reúne os textos sobre transmissão de doenças infecciosas através das biotecnologias reprodutivas, atendendo não somente aos técnicos do campo, mas também a classe produtora, ávida por conhecer e implementar as técnicas reprodutivas nos seus rebanhos.
650 $aAnimal
650 $aBiotecnologia
650 $aCaprino
650 $aDoença Animal
650 $aOvino
650 $aReprodução Animal
650 $aTransmissão de Doença
653 $aBiotecnologia animal
653 $aPequenos ruminantes
653 $aTransmissão
653 $aTransmissão doença
700 1 $aPINHEIRO, R. R.
700 1 $aALVES, F. S. F.
700 1 $aGOUVEIA, A. M. G.
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Embrapa Caprinos e Ovinos (CNPC) |
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