| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
|
Data corrente: |
01/02/2019 |
|
Data da última atualização: |
01/02/2019 |
|
Autoria: |
LANDI, A. |
|
Título: |
Conversion of organic to inorganic carbon in a cold semiarid region. |
|
Ano de publicação: |
2005 |
|
Fonte/Imprenta: |
In: INTERNATIONAL CONFERENCE ON THE DEVELOPMENT OF DRYLANDS, 7., 2003, Tehran, Iran. Sustainable development and management of drylands in the twenty-first century; proceedings. Aleppo, Syria: ICARDA, c2005. p. 154-159. |
|
Idioma: |
Inglês |
|
Conteúdo: |
The pedosphere plays a significant role in influencing the gaseous composition of the atmosphere especially carbon dioxide. Soil organic carbon (SOC) and soil inorganic carbon (SIC) are the two major C pools in the pedosphere, and are closely linked to the biosphere and atmosphere. With respect to the C cycling in the soil, it is important to know how much atmospheric C02 is sequestered as pedogenic carbonate (PC) and how much SIC is derived from SOC during that process? Stable isotope geochemistry was used to determine the amount and accumulation rate of PC and organic C, together with I3CI 2C ratio of soil organic C, in a series of zonal soils representing gradients of environment and time in Saskatchewan, Canada. Results showed that the amount and rate of organic C to 1.2 m depth increased from south to north in prairie lands, in response to increasing precipitation. The amount and rate of PC accumulation also increased in the same direction. Using the net primary production (NPP) of carbon for above ground and belowground data and rate of carbon accumulation as organic C, it was calculated that about 0.32 % of NPP carbon can be accumulated as organic C and about 0.46 % as inorganic C. This shows that in the long term, PC can play an important role in carbon cycle, as it accounts for larger sequestration of carbon than organic matter. Taking organic and inorganic C together, less than 1 % NPP C can be accumulated in the soil. |
|
Thesaurus Nal: |
Carbon; Semiarid soils; Soil organic carbon. |
|
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
|
Marc: |
LEADER 02049naa a2200157 a 4500
001 2105361
005 2019-02-01
008 2005 bl uuuu u00u1 u #d
100 1 $aLANDI, A.
245 $aConversion of organic to inorganic carbon in a cold semiarid region.
260 $c2005
520 $aThe pedosphere plays a significant role in influencing the gaseous composition of the atmosphere especially carbon dioxide. Soil organic carbon (SOC) and soil inorganic carbon (SIC) are the two major C pools in the pedosphere, and are closely linked to the biosphere and atmosphere. With respect to the C cycling in the soil, it is important to know how much atmospheric C02 is sequestered as pedogenic carbonate (PC) and how much SIC is derived from SOC during that process? Stable isotope geochemistry was used to determine the amount and accumulation rate of PC and organic C, together with I3CI 2C ratio of soil organic C, in a series of zonal soils representing gradients of environment and time in Saskatchewan, Canada. Results showed that the amount and rate of organic C to 1.2 m depth increased from south to north in prairie lands, in response to increasing precipitation. The amount and rate of PC accumulation also increased in the same direction. Using the net primary production (NPP) of carbon for above ground and belowground data and rate of carbon accumulation as organic C, it was calculated that about 0.32 % of NPP carbon can be accumulated as organic C and about 0.46 % as inorganic C. This shows that in the long term, PC can play an important role in carbon cycle, as it accounts for larger sequestration of carbon than organic matter. Taking organic and inorganic C together, less than 1 % NPP C can be accumulated in the soil.
650 $aCarbon
650 $aSemiarid soils
650 $aSoil organic carbon
773 $tIn: INTERNATIONAL CONFERENCE ON THE DEVELOPMENT OF DRYLANDS, 7., 2003, Tehran, Iran. Sustainable development and management of drylands in the twenty-first century; proceedings. Aleppo, Syria: ICARDA, c2005. p. 154-159.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Pantanal. |
|
Data corrente: |
08/05/2018 |
|
Data da última atualização: |
05/09/2018 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
A - 2 |
|
Autoria: |
SILVA, M. P. da; MAIO, A. M. D. de. |
|
Afiliação: |
MARCELO PEREIR DA SILVA, UNESP; ANA MARIA DANTAS DE MAIO, CPPSE. |
|
Título: |
Linguagem, consumo e felicidade: discurso jornalístico e ambivalência. |
|
Ano de publicação: |
2018 |
|
Fonte/Imprenta: |
Comunicação, Mídia e Consumo, São Paulo, v. 15, n. 42, p. 182-203, jan./abr., 2018. |
|
Idioma: |
Português |
|
Conteúdo: |
A discussão em torno do consumo, do consumismo e do discurso da felicidade enleia-se à sociedade contemporânea. Fundamentados na Análise Crítica de Discurso, analisamos dois textos jornalísticos publicados no Brasil, em 2013, que tratam da relação entre consumo, vida e felicidade. Diante dessas problemáticas, colocamos na ribalta a ambivalência apensa ao discurso jornalístico sobre a felicidade no contexto de uma cultura de consumo, considerando que os sentidos que produz interferem no tecido social, pois as crenças sobre o mundo se adquirem por meio do discurso, o qual constitui e constrói o mundo em significados. The discussion about consumption, consumerism, and the discourse of happiness is associated with contemporary society. Based on Critical Discourse Analysis, we analyzed two journalistic texts published in Brazil in 2013, which address the relationship between consumption, life, and happiness. Faced with these problematic issues, we put on the spotlight the ambivalence appended to the journalistic discourse on happiness in the context of a culture of consumption, considering the meanings it produces interfere in the social fabric since world convictions are acquired through the discourse, which constitutes and molds the world in meanings. |
|
Palavras-Chave: |
Análise Crítica de Discurso; Critical Discourse Analysis; Journalism. |
|
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/182021/1/2018-Linguagem-consumo-e-felicidade-discurso-jornalistico-e-ambivalencia-CMC.pdf
|
|
Marc: |
LEADER 01840naa a2200169 a 4500
001 2091248
005 2018-09-05
008 2018 bl uuuu u00u1 u #d
100 1 $aSILVA, M. P. da
245 $aLinguagem, consumo e felicidade$bdiscurso jornalístico e ambivalência.$h[electronic resource]
260 $c2018
520 $aA discussão em torno do consumo, do consumismo e do discurso da felicidade enleia-se à sociedade contemporânea. Fundamentados na Análise Crítica de Discurso, analisamos dois textos jornalísticos publicados no Brasil, em 2013, que tratam da relação entre consumo, vida e felicidade. Diante dessas problemáticas, colocamos na ribalta a ambivalência apensa ao discurso jornalístico sobre a felicidade no contexto de uma cultura de consumo, considerando que os sentidos que produz interferem no tecido social, pois as crenças sobre o mundo se adquirem por meio do discurso, o qual constitui e constrói o mundo em significados. The discussion about consumption, consumerism, and the discourse of happiness is associated with contemporary society. Based on Critical Discourse Analysis, we analyzed two journalistic texts published in Brazil in 2013, which address the relationship between consumption, life, and happiness. Faced with these problematic issues, we put on the spotlight the ambivalence appended to the journalistic discourse on happiness in the context of a culture of consumption, considering the meanings it produces interfere in the social fabric since world convictions are acquired through the discourse, which constitutes and molds the world in meanings.
653 $aAnálise Crítica de Discurso
653 $aCritical Discourse Analysis
653 $aJournalism
700 1 $aMAIO, A. M. D. de
773 $tComunicação, Mídia e Consumo, São Paulo$gv. 15, n. 42, p. 182-203, jan./abr., 2018.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Pantanal (CPAP) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
