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Registro Completo |
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Biblioteca(s): |
Embrapa Pesca e Aquicultura. |
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Data corrente: |
21/11/2013 |
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Data da última atualização: |
21/11/2013 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
AVANZI, J. C.; SILVA, M. L. N.; CURI, N.; NORTON, L. D.; BESKOW, S.; MARTINS, S. G. |
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Afiliação: |
JUNIOR CESAR AVANZI, CNPASA; MARX LEANDRO NAVES SILVA, UFLA; NILTON CURI, UFLA; LLOYD DARRELL NORTON, USDA; SAMUEL BESKOW, UFPELOTAS; SÉRGIO GUALBERTO MARTINS, UFSÃO JOÃO DEL REY. |
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Título: |
Spatial distribution of water erosion risk in a watershed with eucalyptus and atlantic forest. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Ciência e Agrotecnologia, Lavras, v. 37, n. 5, p. 427-434, set./out. 2013. |
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Idioma: |
Inglês |
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Conteúdo: |
The process of water erosion occurs in watersheds throughout the world and it is strongly affected by anthropogenic influences. Thus, the knowledge of these processes is extremely necessary for planning of conservation efforts. This study was performed in an experimental forested watershed in order to predict the average potential annual soil loss by water erosion using the Universal Soil Loss Equation (USLE) and a Geographic Information System (GIS), and then compared with soil loss tolerance. All the USLE factors were generated in a distributed approach employing a GIS tool. The layers were multiplied in the GIS framework in order to predict soil erosion rates. Results showed that the average soil loss was 6.2 Mg ha-1 yr-1. Relative to soil loss tolerance, 83% of the area had an erosion rate lesser than the tolerable value. According to soil loss classes, 49% of the watershed had erosion less than 2.5 Mg ha-1 yr-1. However, about 8.7% of the watershed had erosion rates greater than 15 Mg ha-1 yr-1, being mainly related to Plinthosol soil class and roads, thus requiring special attention for the improvement of sustainable management practices for such areas. Eucalyptus cultivation was found to have soil loss greater than Atlantic Forest. Thus, an effort should be made to bring the erosion rates closer to the native forest. Implementation of the USLE model in a GIS framework was found to be a simple and useful tool for predicting the spatial variation of soil erosion risk and identifying critical areas for conservation efforts. MenosThe process of water erosion occurs in watersheds throughout the world and it is strongly affected by anthropogenic influences. Thus, the knowledge of these processes is extremely necessary for planning of conservation efforts. This study was performed in an experimental forested watershed in order to predict the average potential annual soil loss by water erosion using the Universal Soil Loss Equation (USLE) and a Geographic Information System (GIS), and then compared with soil loss tolerance. All the USLE factors were generated in a distributed approach employing a GIS tool. The layers were multiplied in the GIS framework in order to predict soil erosion rates. Results showed that the average soil loss was 6.2 Mg ha-1 yr-1. Relative to soil loss tolerance, 83% of the area had an erosion rate lesser than the tolerable value. According to soil loss classes, 49% of the watershed had erosion less than 2.5 Mg ha-1 yr-1. However, about 8.7% of the watershed had erosion rates greater than 15 Mg ha-1 yr-1, being mainly related to Plinthosol soil class and roads, thus requiring special attention for the improvement of sustainable management practices for such areas. Eucalyptus cultivation was found to have soil loss greater than Atlantic Forest. Thus, an effort should be made to bring the erosion rates closer to the native forest. Implementation of the USLE model in a GIS framework was found to be a simple and useful tool for predicting the spatial variation of soil erosion risk an... Mostrar Tudo |
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Palavras-Chave: |
Mata Atlântica. |
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Thesagro: |
Bacia hidrográfica; Distribuição geográfica; Erosão hídrica; Eucalipto; Solo. |
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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/92817/1/avanzi.pdf
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Marc: |
LEADER 02282naa a2200253 a 4500
001 1971734
005 2013-11-21
008 2013 bl uuuu u00u1 u #d
100 1 $aAVANZI, J. C.
245 $aSpatial distribution of water erosion risk in a watershed with eucalyptus and atlantic forest.
260 $c2013
520 $aThe process of water erosion occurs in watersheds throughout the world and it is strongly affected by anthropogenic influences. Thus, the knowledge of these processes is extremely necessary for planning of conservation efforts. This study was performed in an experimental forested watershed in order to predict the average potential annual soil loss by water erosion using the Universal Soil Loss Equation (USLE) and a Geographic Information System (GIS), and then compared with soil loss tolerance. All the USLE factors were generated in a distributed approach employing a GIS tool. The layers were multiplied in the GIS framework in order to predict soil erosion rates. Results showed that the average soil loss was 6.2 Mg ha-1 yr-1. Relative to soil loss tolerance, 83% of the area had an erosion rate lesser than the tolerable value. According to soil loss classes, 49% of the watershed had erosion less than 2.5 Mg ha-1 yr-1. However, about 8.7% of the watershed had erosion rates greater than 15 Mg ha-1 yr-1, being mainly related to Plinthosol soil class and roads, thus requiring special attention for the improvement of sustainable management practices for such areas. Eucalyptus cultivation was found to have soil loss greater than Atlantic Forest. Thus, an effort should be made to bring the erosion rates closer to the native forest. Implementation of the USLE model in a GIS framework was found to be a simple and useful tool for predicting the spatial variation of soil erosion risk and identifying critical areas for conservation efforts.
650 $aBacia hidrográfica
650 $aDistribuição geográfica
650 $aErosão hídrica
650 $aEucalipto
650 $aSolo
653 $aMata Atlântica
700 1 $aSILVA, M. L. N.
700 1 $aCURI, N.
700 1 $aNORTON, L. D.
700 1 $aBESKOW, S.
700 1 $aMARTINS, S. G.
773 $tCiência e Agrotecnologia, Lavras$gv. 37, n. 5, p. 427-434, set./out. 2013.
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Registro original: |
Embrapa Pesca e Aquicultura (CNPASA) |
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Cutter |
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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Ocidental. |
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Data corrente: |
17/04/2001 |
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Data da última atualização: |
14/08/2018 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
CAMPOS, C. E. B.; LEHMANN, J.; MACEDO, J. L. V. de; SILVA JUNIOR, J. P. da. |
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Afiliação: |
Bolsista CNPq; University of Bayreuth; Embrapa Amazonia Ocidental.; JEFERSON LUIS VASCONCELOS DE MACEDO, CPAA. |
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Título: |
Dinamica de fosforo no solo sob cupuacu (Theobroma grandiflorum) e urucum (Bixa orellana) em um sistema agroflorestal na Amazonia Central. |
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Ano de publicação: |
2000 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE SISTEMAS AGROFLORESTAIS, 3., 2000, Manaus. Sistemas agroflorestais: manejando a biodiversidade e compondo a paisagem rural - resumos expandidos. Manaus: Embrapa Amazonia Ocidental, 2000. |
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Páginas: |
p. 140-141. |
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Idioma: |
Português |
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Conteúdo: |
Avaliacao da disponibilidade de fosforo em solo cultivado com cupuacu e urucu, implantados em sistemas agroflorestais com dois niveis de adubacao (100% e 30%) e o efeito dessas especies na ciclagem de P. Com base nos resultados, pode-se dizer, de um modo geral, que o solo sob plantas de urucu possui quantidade mais alta de P disponivel no solo para a planta do que no cupuacu. Esse comportamento e' consequencia da reciclagem de P que se processa atraves da biomassa deixada no solo apos a poda de urucu. Assim, sistemas agroflorestais que incorporam urucu como componenete tendem a ter a disponibilidade de P melhorada, em Manaus-AM (Brasil). |
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Palavras-Chave: |
Agrofloresta; Amazonas; Brasil; Fertilizers application; Manaus; Phosphate fertilizers; Urucu. |
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Thesagro: |
Adubação; Bixa Orellana; Conservação do Solo; Cultivo Multiplo; Cupuaçu; Floresta Tropical Úmida; Fósforo; Theobroma Grandiflorum; Uso da Terra. |
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Thesaurus NAL: |
agroforestry; land use; multiple cropping; soil conservation; tropical rain forests. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/114386/1/CPAA-DOC.-7-151.pdf
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Marc: |
LEADER 01980nam a2200409 a 4500
001 1670625
005 2018-08-14
008 2000 bl uuuu u00u1 u #d
100 1 $aCAMPOS, C. E. B.
245 $aDinamica de fosforo no solo sob cupuacu (Theobroma grandiflorum) e urucum (Bixa orellana) em um sistema agroflorestal na Amazonia Central.
260 $aIn: CONGRESSO BRASILEIRO DE SISTEMAS AGROFLORESTAIS, 3., 2000, Manaus. Sistemas agroflorestais: manejando a biodiversidade e compondo a paisagem rural - resumos expandidos. Manaus: Embrapa Amazonia Ocidental$c2000
300 $ap. 140-141.
520 $aAvaliacao da disponibilidade de fosforo em solo cultivado com cupuacu e urucu, implantados em sistemas agroflorestais com dois niveis de adubacao (100% e 30%) e o efeito dessas especies na ciclagem de P. Com base nos resultados, pode-se dizer, de um modo geral, que o solo sob plantas de urucu possui quantidade mais alta de P disponivel no solo para a planta do que no cupuacu. Esse comportamento e' consequencia da reciclagem de P que se processa atraves da biomassa deixada no solo apos a poda de urucu. Assim, sistemas agroflorestais que incorporam urucu como componenete tendem a ter a disponibilidade de P melhorada, em Manaus-AM (Brasil).
650 $aagroforestry
650 $aland use
650 $amultiple cropping
650 $asoil conservation
650 $atropical rain forests
650 $aAdubação
650 $aBixa Orellana
650 $aConservação do Solo
650 $aCultivo Multiplo
650 $aCupuaçu
650 $aFloresta Tropical Úmida
650 $aFósforo
650 $aTheobroma Grandiflorum
650 $aUso da Terra
653 $aAgrofloresta
653 $aAmazonas
653 $aBrasil
653 $aFertilizers application
653 $aManaus
653 $aPhosphate fertilizers
653 $aUrucu
700 1 $aLEHMANN, J.
700 1 $aMACEDO, J. L. V. de
700 1 $aSILVA JUNIOR, J. P. da
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Registro original: |
Embrapa Amazônia Ocidental (CPAA) |
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