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Registro Completo |
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
15/07/1996 |
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Data da última atualização: |
21/05/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SHARMA, P. N.; SILVA, A. de S. |
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Afiliação: |
PREN NIWAS SHARMA, INSTITUTO INTERAMERICANO DE COOPERAÇÃO PARA A AGRICULTURA; ADERALDO DE SOUZA SILVA, CPATSA. |
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Título: |
Effect of clearing native forest (Caatinga) strips on some hydrologic components of micro-watersheds. |
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Ano de publicação: |
1988 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, v. 23, n. 7, p. 781-788, jul. 1988. |
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Idioma: |
Inglês |
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Conteúdo: |
The influences of clearing native vegetation (Caatinga) in contour strips at 25 cm vertical interval on evaporation losses in cleared strips, annual runoff efficiency and annuall soil loss on gently sloped micro-waterheds in the arid zones of Northeast Brazil are reported. The alternate native vegetation (Caatinga) strips function very effectively as windbreaks thus reducing evaporation losses substantially in the leeward cleared strips. The runoff measured at the micro-watershed with cleared strips was many-fold lower than the runoff obtained at a completely denuded watershed even when it was protected by narrow based channel terraces. However, the annual runoff efficiency can be significantly increased in a strip cleared watershed if narrow based channel terraces are provided on the lower side of cleared strips. The annual soil losses in strip cleared watersheds as well as completely denuded waterhed of gentle slopes were negligible. Thus clearing land in alternate contour strips on a micro-watersheds shall substantially improve crop water use efficiency without creating any significant erosion problems. Additionally this treatment will increase runoff for water harvesting for irrigation purposes. |
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Palavras-Chave: |
Arid land; Management; Terra arida; Watershed. |
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Thesagro: |
Água; Bacia Hidrográfica; Caatinga; Desmatamento; Irrigação; Manejo; Solo; Vegetação. |
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Thesaurus Nal: |
deforestation; irrigation; soil; vegetation; water. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/143603/1/8064-1.pdf
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Marc: |
LEADER 02091naa a2200337 a 4500
001 1133195
005 2024-05-21
008 1988 bl uuuu u00u1 u #d
100 1 $aSHARMA, P. N.
245 $aEffect of clearing native forest (Caatinga) strips on some hydrologic components of micro-watersheds.
260 $c1988
520 $aThe influences of clearing native vegetation (Caatinga) in contour strips at 25 cm vertical interval on evaporation losses in cleared strips, annual runoff efficiency and annuall soil loss on gently sloped micro-waterheds in the arid zones of Northeast Brazil are reported. The alternate native vegetation (Caatinga) strips function very effectively as windbreaks thus reducing evaporation losses substantially in the leeward cleared strips. The runoff measured at the micro-watershed with cleared strips was many-fold lower than the runoff obtained at a completely denuded watershed even when it was protected by narrow based channel terraces. However, the annual runoff efficiency can be significantly increased in a strip cleared watershed if narrow based channel terraces are provided on the lower side of cleared strips. The annual soil losses in strip cleared watersheds as well as completely denuded waterhed of gentle slopes were negligible. Thus clearing land in alternate contour strips on a micro-watersheds shall substantially improve crop water use efficiency without creating any significant erosion problems. Additionally this treatment will increase runoff for water harvesting for irrigation purposes.
650 $adeforestation
650 $airrigation
650 $asoil
650 $avegetation
650 $awater
650 $aÁgua
650 $aBacia Hidrográfica
650 $aCaatinga
650 $aDesmatamento
650 $aIrrigação
650 $aManejo
650 $aSolo
650 $aVegetação
653 $aArid land
653 $aManagement
653 $aTerra arida
653 $aWatershed
700 1 $aSILVA, A. de S.
773 $tPesquisa Agropecuária Brasileira$gv. 23, n. 7, p. 781-788, jul. 1988.
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Registro original: |
Embrapa Semiárido (CPATSA) |
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| Registros recuperados : 261 | |
| 40. |  | SILVA, A. de S.; BRITO, L. T. de L. A água no semi-árido brasileiro. In: SILVA, A. de S.; CEBALLOS, B. S. O. de; SILVA, C. M. M. de S.; FAY, E. F.; BRITO, L. T. de L.; AMORIM, J. S.; SILVA FILHO, P. P. da. Indicador de qualidade de uso de água em cisternas no semi-árido brasileiro (IUA-CD): relatório técnico final. Petrolina: Embrapa Semi-Árido: FINEP: ATECEL: UFCG: UEPB, 2008. cap. 1, p. 6-8.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Semiárido. |
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| Registros recuperados : 261 | |
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