|
Registro Completo |
|
Biblioteca(s): |
Embrapa Solos. |
|
Data corrente: |
22/11/2002 |
|
Data da última atualização: |
22/11/2002 |
|
Autoria: |
EL-SWAIFY, S.A. |
|
Título: |
Susceptibilities of certain tropical soils to erosion by water. |
|
Ano de publicação: |
1977 |
|
Fonte/Imprenta: |
In: GREENLAND, D.J.; LAL, R. Soil conservation and management in the humid tropics. Chichester: John Wiley & Sons, 1977. |
|
Páginas: |
p. 71-77 |
|
ISBN: |
0 471 994731 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Soil erodibility factors, experimentally obtained by rainfall simulation, were used to evaluate the relative susceptibilities of selected Hawaii Aridisols, Inceptisols, Oxisols, Ultisols, and Vertisols to erosion by water. For this evaluation, soil losses from a defined area of 1 ha due to a hypothetical 1 hr storm with a uniform intensity of 63.5 mm/hr were predicted by the universal soil loss equation. It was found that susceptililities of the soils to water erosion covered a wide range of values from very low (less than 14.6 tonnes/ha) to very high (more than 80.7 tonnes/ha). For most soils, it was necessary to make a clear distinction between susceptibilities to erosion depending on the prevailing soil moisture regime. Nevertheless, in general it appearedthat the Humoxic Tropohumult was the least, and the Entic Eutrandept the most, susceptible. Quantitative predictions of soil losses could not be adequately made by use of the parameters and relationships successfully used for temperate soils. Therefore, additional parameters affecting erodibility need to be defines and more applicable predictive equations developed for soils of the humid tropics. |
|
Palavras-Chave: |
Controle; Tropico. |
|
Thesagro: |
Agricultura; Conservação; Erosão; Manejo; Solo. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 01778naa a2200217 a 4500
001 1327587
005 2002-11-22
008 1977 bl uuuu u00u1 u #d
100 1 $aEL-SWAIFY, S.A.
245 $aSusceptibilities of certain tropical soils to erosion by water.
260 $c1977
300 $ap. 71-77
520 $aSoil erodibility factors, experimentally obtained by rainfall simulation, were used to evaluate the relative susceptibilities of selected Hawaii Aridisols, Inceptisols, Oxisols, Ultisols, and Vertisols to erosion by water. For this evaluation, soil losses from a defined area of 1 ha due to a hypothetical 1 hr storm with a uniform intensity of 63.5 mm/hr were predicted by the universal soil loss equation. It was found that susceptililities of the soils to water erosion covered a wide range of values from very low (less than 14.6 tonnes/ha) to very high (more than 80.7 tonnes/ha). For most soils, it was necessary to make a clear distinction between susceptibilities to erosion depending on the prevailing soil moisture regime. Nevertheless, in general it appearedthat the Humoxic Tropohumult was the least, and the Entic Eutrandept the most, susceptible. Quantitative predictions of soil losses could not be adequately made by use of the parameters and relationships successfully used for temperate soils. Therefore, additional parameters affecting erodibility need to be defines and more applicable predictive equations developed for soils of the humid tropics.
650 $aAgricultura
650 $aConservação
650 $aErosão
650 $aManejo
650 $aSolo
653 $aControle
653 $aTropico
773 $tIn: GREENLAND, D.J.; LAL, R. Soil conservation and management in the humid tropics. Chichester: John Wiley & Sons, 1977.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Solos (CNPS) |
|
