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Biblioteca(s): |
Embrapa Tabuleiros Costeiros. |
Data corrente: |
17/06/1996 |
Data da última atualização: |
17/06/1996 |
Autoria: |
BISSANI, C. A.; TEDESCO, M. J. |
Título: |
O enxofre no solo. |
Ano de publicação: |
1988 |
Fonte/Imprenta: |
IN: REUNIAO BRASILEIRA DE FERTILIDADE DO SOLO, 17. Londrina, 1988. Anais. Londrina: EMBRAPA-CNPSo / IAPAR / SBCS, 1988. p.11-27. |
Idioma: |
Português |
Conteúdo: |
O enxofre e o 13. elemento mais abundante da crosta terrestre, acorrendo em compostos solidos,formas insoluveis, sais soluveis e gases. E altamente reativo, sendo encontrado em estados de oxidacao deste -2 a +6. Muitas transformacoes do S no solo sao devidas a atividade microbiana. As principais formas que ocorrem em solos acidos bem drenados sao sulfato adsorvido a fracao mineral e em compostos organicos. Em solos alcalinos bem drenados sao encontrados compostos de S pouco soluveis, enquanto em solos mal drenados formas reduzidas de S podem propiciar caracteristicas especiais ao solo. Formas gasosas no ar ou soluveis na agua da chuva podem ser fontes importantes de suprimento de S para as plantas. |
Palavras-Chave: |
Solos. |
Thesagro: |
Enxofre; Pesquisa. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01181naa a2200169 a 4500 001 1363968 005 1996-06-17 008 1988 bl uuuu u00u1 u #d 100 1 $aBISSANI, C. A. 245 $aO enxofre no solo. 260 $c1988 520 $aO enxofre e o 13. elemento mais abundante da crosta terrestre, acorrendo em compostos solidos,formas insoluveis, sais soluveis e gases. E altamente reativo, sendo encontrado em estados de oxidacao deste -2 a +6. Muitas transformacoes do S no solo sao devidas a atividade microbiana. As principais formas que ocorrem em solos acidos bem drenados sao sulfato adsorvido a fracao mineral e em compostos organicos. Em solos alcalinos bem drenados sao encontrados compostos de S pouco soluveis, enquanto em solos mal drenados formas reduzidas de S podem propiciar caracteristicas especiais ao solo. Formas gasosas no ar ou soluveis na agua da chuva podem ser fontes importantes de suprimento de S para as plantas. 650 $aEnxofre 650 $aPesquisa 653 $aSolos 700 1 $aTEDESCO, M. J. 773 $tIN: REUNIAO BRASILEIRA DE FERTILIDADE DO SOLO, 17. Londrina, 1988. Anais. Londrina: EMBRAPA-CNPSo / IAPAR / SBCS, 1988. p.11-27.
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Registro Completo
Biblioteca(s): |
Embrapa Territorial. |
Data corrente: |
11/01/2023 |
Data da última atualização: |
15/02/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
SOUZA, M. F. DE; TISLER, T. R.; CASTRO, G. S. A.; OLIVEIRA, A. L. R. DE. |
Afiliação: |
MARLON FERNANDES DE SOUZA, UNICAMP; TREVOR RAY TISLER, UNIVERSITY OF BONN; GUSTAVO SPADOTTI AMARAL CASTRO, CNPM; ANDRÉA LEDA RAMOS DE OLIVEIRA, UNICAMP. |
Título: |
Port regionalization for agricultural commodities: Mapping exporting port hinterlands. |
Ano de publicação: |
2023 |
Fonte/Imprenta: |
Journal of Transport Geography, v. 106, jan. 2023. |
ISBN: |
0966-6923 |
DOI: |
https://doi.org/10.1016/j.jtrangeo.2022.103506 |
Idioma: |
Inglês |
Conteúdo: |
ABSTRACT: Reductions in maritime transport costs have increased cargo displacement within countries, demanding improvements in internal logistics, mainly in developing countries. Port regionalization can be applied for impact analysis of logistics infrastructure projects, enabling the delimitation of the proposed infrastructure zone of influence for advanced economic, social, and environmental studies. This article primarily aims to test whether the proposed model can efficiently delimit port hinterlands. We built a model that finds the potential destination port according to parameterized logistics cost (considering the actual distance, slope, and spatial variation of road freight), solved by the Fast Sweeping Method algorithm for Eikonal equations. We present an example of model application in Brazil's grain export supply chain and validate the model's result by comparing it with Embrapa's model hinterlands. Then, a future scenario considering the railway project EF-170 (Ferrogrão) shows the possible change in the spatial configuration of Brazilian ports' hinterlands. Furthermore, the planned route for this railway project is entirely inside the Amazon biome, requiring special environmental attention in the proposed infrastructure's zone of influence. We conclude that the model presented adheres to the practical hinterlands and can support the impact analyses of large logistics projects, contributing to suitability analyses and proposals for mitigating the impacts caused by infrastructure. MenosABSTRACT: Reductions in maritime transport costs have increased cargo displacement within countries, demanding improvements in internal logistics, mainly in developing countries. Port regionalization can be applied for impact analysis of logistics infrastructure projects, enabling the delimitation of the proposed infrastructure zone of influence for advanced economic, social, and environmental studies. This article primarily aims to test whether the proposed model can efficiently delimit port hinterlands. We built a model that finds the potential destination port according to parameterized logistics cost (considering the actual distance, slope, and spatial variation of road freight), solved by the Fast Sweeping Method algorithm for Eikonal equations. We present an example of model application in Brazil's grain export supply chain and validate the model's result by comparing it with Embrapa's model hinterlands. Then, a future scenario considering the railway project EF-170 (Ferrogrão) shows the possible change in the spatial configuration of Brazilian ports' hinterlands. Furthermore, the planned route for this railway project is entirely inside the Amazon biome, requiring special environmental attention in the proposed infrastructure's zone of influence. We conclude that the model presented adheres to the practical hinterlands and can support the impact analyses of large logistics projects, contributing to suitability analyses and proposals for mitigating the impacts caused b... Mostrar Tudo |
Palavras-Chave: |
Fast sweeping method; Logistic basin; Port hinterland; Seaport; Strategic planning. |
Thesaurus NAL: |
Deforestation. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
Marc: |
LEADER 02286naa a2200253 a 4500 001 2150872 005 2023-02-15 008 2023 bl uuuu u00u1 u #d 022 $a0966-6923 024 7 $ahttps://doi.org/10.1016/j.jtrangeo.2022.103506$2DOI 100 1 $aSOUZA, M. F. DE 245 $aPort regionalization for agricultural commodities$bMapping exporting port hinterlands.$h[electronic resource] 260 $c2023 520 $aABSTRACT: Reductions in maritime transport costs have increased cargo displacement within countries, demanding improvements in internal logistics, mainly in developing countries. Port regionalization can be applied for impact analysis of logistics infrastructure projects, enabling the delimitation of the proposed infrastructure zone of influence for advanced economic, social, and environmental studies. This article primarily aims to test whether the proposed model can efficiently delimit port hinterlands. We built a model that finds the potential destination port according to parameterized logistics cost (considering the actual distance, slope, and spatial variation of road freight), solved by the Fast Sweeping Method algorithm for Eikonal equations. We present an example of model application in Brazil's grain export supply chain and validate the model's result by comparing it with Embrapa's model hinterlands. Then, a future scenario considering the railway project EF-170 (Ferrogrão) shows the possible change in the spatial configuration of Brazilian ports' hinterlands. Furthermore, the planned route for this railway project is entirely inside the Amazon biome, requiring special environmental attention in the proposed infrastructure's zone of influence. We conclude that the model presented adheres to the practical hinterlands and can support the impact analyses of large logistics projects, contributing to suitability analyses and proposals for mitigating the impacts caused by infrastructure. 650 $aDeforestation 653 $aFast sweeping method 653 $aLogistic basin 653 $aPort hinterland 653 $aSeaport 653 $aStrategic planning 700 1 $aTISLER, T. R. 700 1 $aCASTRO, G. S. A. 700 1 $aOLIVEIRA, A. L. R. DE 773 $tJournal of Transport Geography$gv. 106, jan. 2023.
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