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Registro Completo |
Biblioteca(s): |
Embrapa Algodão. |
Data corrente: |
17/06/1994 |
Data da última atualização: |
17/06/1994 |
Autoria: |
OLIVEIRA, F. A. de. |
Título: |
Parametros fisico-hidricos. |
Ano de publicação: |
1979 |
Fonte/Imprenta: |
Salvador: EPABA, 1979. |
Páginas: |
13p |
Série: |
(EPABA. Comunicado Tecnico, 45) |
Idioma: |
Português |
Thesagro: |
Irrigação; Solo. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00356nam a2200145 a 4500 001 1266158 005 1994-06-17 008 1979 bl uuuu u0uu1 u #d 100 1 $aOLIVEIRA, F. A. de 245 $aParametros fisico-hidricos. 260 $aSalvador: EPABA$c1979 300 $a13p 490 $a(EPABA. Comunicado Tecnico, 45) 650 $aIrrigação 650 $aSolo
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Embrapa Algodão (CNPA) |
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Registro Completo
Biblioteca(s): |
Embrapa Unidades Centrais. |
Data corrente: |
26/05/2009 |
Data da última atualização: |
29/05/2018 |
Autoria: |
SHE, D. L.; SHAO, M. A.; TIMM, L. C.; REICHARDT, K. |
Afiliação: |
Dong Li She, State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Research Center of Soil and Water Conservation and Ecological Environment, Chinese Academy of Sciences & Ministry of Education, Institute of Soil and Water Conservation, Northw; Ming An Shao, State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Research Center of Soil and Water Conservation and Ecological Environment, Chinese Academy of Sciences & Ministry of Education, Institute of Soil and Water Conservation, Northw; Luis Carlos Timm, Universidade Federal de Pelotas, Faculdade de Agronomia, Departamento de Engenharia Rural; Klaus Reichardt, Universidade de São Paulo, Centro de Energia Nuclear na Agricultura, Laboratório de Física do Solo. |
Título: |
Temporal changes of an alfalfa succession and related soil physical properties on the Loess Plateau, China. |
Ano de publicação: |
2009 |
Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 44, n. 2, p. 189-196, fev. 2009. |
Idioma: |
Inglês |
Notas: |
Título em português: Variações temporais de uma sucessão de alfafa e de propriedades físicas do solo a elas relacionadas no Loess Plateau, China. |
Conteúdo: |
The objective of this work was to investigate the relationship between changes in the plant community and changes in soil physical properties and water availability, during a succession from alfalfa (Medicago sativa L.) to natural vegetation on the Loess Plateau, China. Data from a succession sere spanning 32 years were collated, and vegetative indexes were compared to changes related to soil bulk density and soil water storage. The alfalfa yield increased for approximately 7 years, then it declined and the alfalfa was replaced by a natural community dominated by Stipa bungeana that began to thrive about 10 years after alfalfa seeding. Soil bulk density increased over time, but the deterioration of the alfalfa was mainly ascribed to a severe reduction in soil water storage, which was lowest around the time when degradation commenced. The results indicated that water consumption by alfalfa could be reduced by reducing plant density. The analysis of the data also suggested that soil water recharge could be facilitated by rotating the alfalfa with other crops, natural vegetation, or bare soil. |
Palavras-Chave: |
agropastoral transition zone; community characteristics; comunidades características; propriedades físicas do solo; recuperação da água no solo; soil water restoration; zona de transição agropastoril. |
Thesagro: |
Medicago Sativa. |
Thesaurus NAL: |
soil physical properties. |
Categoria do assunto: |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/106121/1/Temporal-changes.pdf
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Marc: |
LEADER 02183naa a2200277 a 4500 001 1125760 005 2018-05-29 008 2009 bl uuuu u00u1 u #d 100 1 $aSHE, D. L. 245 $aTemporal changes of an alfalfa succession and related soil physical properties on the Loess Plateau, China.$h[electronic resource] 260 $c2009 500 $aTítulo em português: Variações temporais de uma sucessão de alfafa e de propriedades físicas do solo a elas relacionadas no Loess Plateau, China. 520 $aThe objective of this work was to investigate the relationship between changes in the plant community and changes in soil physical properties and water availability, during a succession from alfalfa (Medicago sativa L.) to natural vegetation on the Loess Plateau, China. Data from a succession sere spanning 32 years were collated, and vegetative indexes were compared to changes related to soil bulk density and soil water storage. The alfalfa yield increased for approximately 7 years, then it declined and the alfalfa was replaced by a natural community dominated by Stipa bungeana that began to thrive about 10 years after alfalfa seeding. Soil bulk density increased over time, but the deterioration of the alfalfa was mainly ascribed to a severe reduction in soil water storage, which was lowest around the time when degradation commenced. The results indicated that water consumption by alfalfa could be reduced by reducing plant density. The analysis of the data also suggested that soil water recharge could be facilitated by rotating the alfalfa with other crops, natural vegetation, or bare soil. 650 $asoil physical properties 650 $aMedicago Sativa 653 $aagropastoral transition zone 653 $acommunity characteristics 653 $acomunidades características 653 $apropriedades físicas do solo 653 $arecuperação da água no solo 653 $asoil water restoration 653 $azona de transição agropastoril 700 1 $aSHAO, M. A. 700 1 $aTIMM, L. C. 700 1 $aREICHARDT, K. 773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 44, n. 2, p. 189-196, fev. 2009.
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