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Registro Completo |
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Biblioteca(s): |
Embrapa Tabuleiros Costeiros. |
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Data corrente: |
09/09/1998 |
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Data da última atualização: |
09/09/1998 |
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Autoria: |
ARAUJO, A. P.; ROSSIELLO, R. O. P.; SILVA, E. M. R. da; ALMEIDA, D. L. de. |
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Título: |
Growth analysis of tomato colonized with arbuscular mycorrhizal fungi |
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Ano de publicação: |
1996 |
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Fonte/Imprenta: |
Revista Brasileira de Ciencia do Solo, v.20, n.2, p.233-240,1996. |
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ISSN: |
0100-0683 |
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Idioma: |
Inglês |
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Conteúdo: |
The evaluation of the benefits produced by onoculation of plants with the arbuscular mycorrhizal fungus(AMF) should consider the effect of host ontogeny, which causes changes in symbiosis due to changing source-sink relationships.In a greenhouse experiment, conducted at Centro Nacional de Pesquisa de Agrobiologia-EMBRAPA, Seropedica, State of Rio de Janeiro, Brazil, in 1991, the growth rates and the phosphorus(P) accumulation and utilization rates of tomato plants(Lycopersicon esculentum Mill.) were estimated using functional growth analysis. The treatments consisted of two levels of added P(60 and 120mg P kg soil, respectively,P1 and P2, either inoculated or not with the AMF Glomus etunicatum Becker & Gerdemann, and nine weekly harvests. |
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Palavras-Chave: |
Arbuscular mycorrhiza; Growth analysis; Root area; Tomato. |
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Thesagro: |
Lycopersicon Esculentum; Tomate. |
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Thesaurus Nal: |
phosphorus. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01446naa a2200253 a 4500
001 1354726
005 1998-09-09
008 1996 bl uuuu u00u1 u #d
022 $a0100-0683
100 1 $aARAUJO, A. P.
245 $aGrowth analysis of tomato colonized with arbuscular mycorrhizal fungi
260 $c1996
520 $aThe evaluation of the benefits produced by onoculation of plants with the arbuscular mycorrhizal fungus(AMF) should consider the effect of host ontogeny, which causes changes in symbiosis due to changing source-sink relationships.In a greenhouse experiment, conducted at Centro Nacional de Pesquisa de Agrobiologia-EMBRAPA, Seropedica, State of Rio de Janeiro, Brazil, in 1991, the growth rates and the phosphorus(P) accumulation and utilization rates of tomato plants(Lycopersicon esculentum Mill.) were estimated using functional growth analysis. The treatments consisted of two levels of added P(60 and 120mg P kg soil, respectively,P1 and P2, either inoculated or not with the AMF Glomus etunicatum Becker & Gerdemann, and nine weekly harvests.
650 $aphosphorus
650 $aLycopersicon Esculentum
650 $aTomate
653 $aArbuscular mycorrhiza
653 $aGrowth analysis
653 $aRoot area
653 $aTomato
700 1 $aROSSIELLO, R. O. P.
700 1 $aSILVA, E. M. R. da
700 1 $aALMEIDA, D. L. de
773 $tRevista Brasileira de Ciencia do Solo$gv.20, n.2, p.233-240,1996.
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Registro original: |
Embrapa Tabuleiros Costeiros (CPATC) |
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Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Agricultura Digital; Embrapa Pantanal. |
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Data corrente: |
26/09/2022 |
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Data da última atualização: |
27/09/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
LOUZADA, R. O.; BERGIER, I.; DINIZ, J. M. F. de S.; GUERRA, A.; ROQUE, F. de O. |
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Afiliação: |
RÔMULLO O. LOUZADA, UNIVERSIDADE FEDERAL DE MATO GROSSO DO SUL; IVAN BERGIER TAVARES DE LIMA, CPAP, CNPTIA; JULIANA M. F. DE S. DINIZ, INSTITUTO NACIONAL DE PESQUISAS ESPACIAIS; A. GUERRA, INSTITUTO HOMEM PANTANEIRO; FÁBIO DE O. ROQUE, UNIVERSIDADE FEDERAL DE MATO GROSSO DO SUL, JAMES COOK UNIVERSITY. |
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Título: |
Priority setting for restoration in surrounding savannic areas of the Brazilian Pantanal based on soil loss risk and agrarian structure. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Journal of Environmental Management, v. 323, 116219, dec. 2022. |
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DOI: |
https://doi.org/10.1016/j.jenvman.2022.116219 |
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Idioma: |
Inglês |
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Conteúdo: |
ABSTRACT. Soil health is at the core of the sustainability agenda. As in many agroecosystems in the tropics, soil erosion is a major issue in poorly managed pasturelands. A noteworthy case is located in the Upper Taquari River Basin (UTRB), as part of the Upper Paraguay Basin on the plateau with drainage waters for the Taquari megafan in the Brazilian Pantanal. Here we combine slope (S-factor), erodibility (E-factor), rainfall-rainy day ratio (R-factor), and vegetation and soil indices (C-factor) to locate erosion risk and prioritize eco-engineering interventions via palisades and small dams in UTRB. The method consisted of assessing distinct weights between Universal Soil Loss Equation (USLE) factors in a GIS platform, providing 35 combinations of classes as low, moderate, high, and very high erosive risk. The validation of the method was based on the ravine and plain ground truths obtained from high-resolution raster data. The best weight of USLE factors aids to locate critical erosive sites and vegetation patterns. Then, erosion risk and interventions were analyzed according to land use and rural property sizes in the government?s Rural Environmental Registry (CAR) database. Overall, the natural factors of slope and erodibility in a proportion of 25% and 75% in GIS algebra provided the best mapping accuracy result. About 65% of the UTRB has high or very high erosion risks, and 70% of the available area can be acknowledged as degraded pasturelands. A total of 4744 erosion interventions were recorded, with an accuracy of 65.28% and 61.15% for check dams and palisades interventions, respectively. The number of necessary interventions in areas of native vegetation was almost 50% higher than in pasturelands. Even though micro landowners occupy most of the watershed, large properties have about ten times as many areas at high risk of erosion. The mutual cooperation between properties, independently of size, is supported by governmental public policies like incentives for ecosystem services restoration of critical gullies, with CAR compliance and fiscalization. MenosABSTRACT. Soil health is at the core of the sustainability agenda. As in many agroecosystems in the tropics, soil erosion is a major issue in poorly managed pasturelands. A noteworthy case is located in the Upper Taquari River Basin (UTRB), as part of the Upper Paraguay Basin on the plateau with drainage waters for the Taquari megafan in the Brazilian Pantanal. Here we combine slope (S-factor), erodibility (E-factor), rainfall-rainy day ratio (R-factor), and vegetation and soil indices (C-factor) to locate erosion risk and prioritize eco-engineering interventions via palisades and small dams in UTRB. The method consisted of assessing distinct weights between Universal Soil Loss Equation (USLE) factors in a GIS platform, providing 35 combinations of classes as low, moderate, high, and very high erosive risk. The validation of the method was based on the ravine and plain ground truths obtained from high-resolution raster data. The best weight of USLE factors aids to locate critical erosive sites and vegetation patterns. Then, erosion risk and interventions were analyzed according to land use and rural property sizes in the government?s Rural Environmental Registry (CAR) database. Overall, the natural factors of slope and erodibility in a proportion of 25% and 75% in GIS algebra provided the best mapping accuracy result. About 65% of the UTRB has high or very high erosion risks, and 70% of the available area can be acknowledged as degraded pasturelands. A total of 4744 erosion ... Mostrar Tudo |
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Palavras-Chave: |
Agrarian structure; Barrancos; Check dams; Gullies; Paliçadas; Palisades; USLE. |
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Thesagro: |
Erosão do Solo; Estrutura Agrária. |
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Thesaurus NAL: |
Soil erosion. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1146804/1/Priority-setting-for-restoration-in-surrounding-2022.pdf
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Marc: |
LEADER 03014naa a2200301 a 4500
001 2146804
005 2022-09-27
008 2022 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.jenvman.2022.116219$2DOI
100 1 $aLOUZADA, R. O.
245 $aPriority setting for restoration in surrounding savannic areas of the Brazilian Pantanal based on soil loss risk and agrarian structure.$h[electronic resource]
260 $c2022
520 $aABSTRACT. Soil health is at the core of the sustainability agenda. As in many agroecosystems in the tropics, soil erosion is a major issue in poorly managed pasturelands. A noteworthy case is located in the Upper Taquari River Basin (UTRB), as part of the Upper Paraguay Basin on the plateau with drainage waters for the Taquari megafan in the Brazilian Pantanal. Here we combine slope (S-factor), erodibility (E-factor), rainfall-rainy day ratio (R-factor), and vegetation and soil indices (C-factor) to locate erosion risk and prioritize eco-engineering interventions via palisades and small dams in UTRB. The method consisted of assessing distinct weights between Universal Soil Loss Equation (USLE) factors in a GIS platform, providing 35 combinations of classes as low, moderate, high, and very high erosive risk. The validation of the method was based on the ravine and plain ground truths obtained from high-resolution raster data. The best weight of USLE factors aids to locate critical erosive sites and vegetation patterns. Then, erosion risk and interventions were analyzed according to land use and rural property sizes in the government?s Rural Environmental Registry (CAR) database. Overall, the natural factors of slope and erodibility in a proportion of 25% and 75% in GIS algebra provided the best mapping accuracy result. About 65% of the UTRB has high or very high erosion risks, and 70% of the available area can be acknowledged as degraded pasturelands. A total of 4744 erosion interventions were recorded, with an accuracy of 65.28% and 61.15% for check dams and palisades interventions, respectively. The number of necessary interventions in areas of native vegetation was almost 50% higher than in pasturelands. Even though micro landowners occupy most of the watershed, large properties have about ten times as many areas at high risk of erosion. The mutual cooperation between properties, independently of size, is supported by governmental public policies like incentives for ecosystem services restoration of critical gullies, with CAR compliance and fiscalization.
650 $aSoil erosion
650 $aErosão do Solo
650 $aEstrutura Agrária
653 $aAgrarian structure
653 $aBarrancos
653 $aCheck dams
653 $aGullies
653 $aPaliçadas
653 $aPalisades
653 $aUSLE
700 1 $aBERGIER, I.
700 1 $aDINIZ, J. M. F. de S.
700 1 $aGUERRA, A.
700 1 $aROQUE, F. de O.
773 $tJournal of Environmental Management$gv. 323, 116219, dec. 2022.
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Embrapa Pantanal (CPAP) |
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