|
Registro Completo |
|
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
|
Data corrente: |
01/08/1992 |
|
Data da última atualização: |
08/01/2024 |
|
Autoria: |
MEYEL, L. D.; WISCHMEIER, W. H.; FOSTER, G. R. |
|
Título: |
Mulch rates required for erosion control on sheep slopes. |
|
Ano de publicação: |
1970 |
|
Fonte/Imprenta: |
Proceedings. Soil Science Society of America, v. 34, n. 6, p. 928-931, 1970. |
|
Idioma: |
Inglês |
|
Conteúdo: |
Abstract: The erosion-reducing effectiveness of six rates of straw mulch was tested on slopes averaging 15%. Mulch rates of only 0.56 and 1.12 metric tons/ha reduced soil losses to less than one–third of those from unmulched areas during a series of intense simulated rainstorms. A 2.24-metric tons/ha rate decreased soil loss to only 18% of that from no mulch, and the 4.48- and 8.96-metric tons/ha rates reduced it to less than 5%. Runoff velocity for the 0.56-metric tons/ha rate was one-half that for no mulch, but heavier rates decreased velocity only slightly more. The reduced velocity due to mulching accounted for much of the resulting decrease in soil erosion. Although the small mulch rates greatly reduced erosion, more mulch was required to fully control erosion than was required on the less-steep, more permeable soil conditions tested in earlier studies. |
|
Palavras-Chave: |
Controle; Mulching materials; Restolho. |
|
Thesagro: |
Erosão; Pastagem. |
|
Thesaurus Nal: |
Erosion control; Losses from soil; Runoff; Soil erosion; Straw mulches; Topographic slope. |
|
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
|
Marc: |
LEADER 01607naa a2200277 a 4500
001 1520850
005 2024-01-08
008 1970 bl uuuu u00u1 u #d
100 1 $aMEYEL, L. D.
245 $aMulch rates required for erosion control on sheep slopes.
260 $c1970
520 $aAbstract: The erosion-reducing effectiveness of six rates of straw mulch was tested on slopes averaging 15%. Mulch rates of only 0.56 and 1.12 metric tons/ha reduced soil losses to less than one–third of those from unmulched areas during a series of intense simulated rainstorms. A 2.24-metric tons/ha rate decreased soil loss to only 18% of that from no mulch, and the 4.48- and 8.96-metric tons/ha rates reduced it to less than 5%. Runoff velocity for the 0.56-metric tons/ha rate was one-half that for no mulch, but heavier rates decreased velocity only slightly more. The reduced velocity due to mulching accounted for much of the resulting decrease in soil erosion. Although the small mulch rates greatly reduced erosion, more mulch was required to fully control erosion than was required on the less-steep, more permeable soil conditions tested in earlier studies.
650 $aErosion control
650 $aLosses from soil
650 $aRunoff
650 $aSoil erosion
650 $aStraw mulches
650 $aTopographic slope
650 $aErosão
650 $aPastagem
653 $aControle
653 $aMulching materials
653 $aRestolho
700 1 $aWISCHMEIER, W. H.
700 1 $aFOSTER, G. R.
773 $tProceedings. Soil Science Society of America$gv. 34, n. 6, p. 928-931, 1970.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
