| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Amazônia Oriental. |
|
Data corrente: |
21/01/2005 |
|
Data da última atualização: |
02/12/2022 |
|
Tipo da produção científica: |
Resumo em Anais de Congresso |
|
Autoria: |
DENICH, M.; VLEK, P.; SÁ, T. D. de A.; VIELHAVER, K. |
|
Afiliação: |
ZEF / UNIVERSITY OF BONN; ZEF / UNIVERSITY OF BONN; TATIANA DEANE DE ABREU SA, CPATU; ZEF / UNIVERSITY OF BONN. |
|
Título: |
A research concept for the development of fire-free fallow management techniques in the Eastern Amazon Region. |
|
Ano de publicação: |
2000 |
|
Fonte/Imprenta: |
In: ANNUAL MEETING OF ASA/CSSA/SSSA, 2000, Minneapolis, Minnesota. Abstracts. Minneapolis: ASA: CSSA: SSSA, 2000. |
|
Páginas: |
p. 62. |
|
Idioma: |
Inglês |
|
Palavras-Chave: |
Manejo de cultivo. |
|
Thesagro: |
Pousio. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/101797/1/5421.pdf
|
|
Marc: |
LEADER 00596nam a2200169 a 4500
001 1406251
005 2022-12-02
008 2000 bl uuuu u00u1 u #d
100 1 $aDENICH, M.
245 $aA research concept for the development of fire-free fallow management techniques in the Eastern Amazon Region.$h[electronic resource]
260 $aIn: ANNUAL MEETING OF ASA/CSSA/SSSA, 2000, Minneapolis, Minnesota. Abstracts. Minneapolis: ASA: CSSA: SSSA$c2000
300 $ap. 62.
650 $aPousio
653 $aManejo de cultivo
700 1 $aVLEK, P.
700 1 $aSÁ, T. D. de A.
700 1 $aVIELHAVER, K.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Amazônia Oriental (CPATU) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Meio Ambiente. |
|
Data corrente: |
25/10/2017 |
|
Data da última atualização: |
21/02/2018 |
|
Tipo da produção científica: |
Resumo em Anais de Congresso |
|
Autoria: |
CAMARGO, P. B. de; COSTA, C. F. G.; FIGUEIREDO, R. de O.; PICCOLO, M. C.; REIS, L. C.; MAJER, P. E. T. |
|
Afiliação: |
P. B. de CAMARGO, CENA/USP; C. F. G. COSTA, CENA/USP; RICARDO DE OLIVEIRA FIGUEIREDO, CNPMA; M. C. PICCOLO, CENA/USP; L. C. REIS, CENA/USP; P. E. T. MAJER, CENA/USP. |
|
Título: |
Origin of organic matter and quantity of transported material from Jaguari river, SP and MG, Brazil. |
|
Ano de publicação: |
2017 |
|
Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE LIMNOLOGIA, 16., 2017, Rio de Janeiro. Recursos hídricos em crise: sustentabilidade, biodiversidade e integração de conhecimentos face a mudanças globais: resumos... Rio de Janeiro: Sociedade Brasileira de Limnologia, 2017. Ref. SE11. p. 142. |
|
Idioma: |
Português |
|
Conteúdo: |
The objective was to investigate the origin of the organic matter of the sediment and the particulate material in the Jaguari River, under the influence of different land uses. The basin, a few decades ago, replaced the original vegetation of Savanna Brazilian and Atlantic Forest (C3 plants), for several agricultural uses, predominantly pastures (C4 plants), small crops, eucalyptus plantations and urbanization. Currently, it is located in a region with strategic environmental and location characteristics, which allowed the intensification of disorderly agricultural, industrial and population development. The study began in January of 2015 (one hydrological year), with monthly collections in 13 sampling stations in the Jaguari River, with influence of forest ecosystem, agricultural crop, pasture and urban use. The suspended particulate material, thin (MPS-F) and coarse (MPS-G), fractionated in the field by sieving (63?m mesh) and quantified in mass concentration; the sediment collected randomly with dredge in August. The isotope ratio was determined on the Thermo Quest Finningan Delta Plus mass spectrometer. The highest concentrations of MPS-F observed at the upstream of River, being 21% higher than in the downstream, due to mountainous relief of the region, the maximum and minimum concentration was 70.5 and 8.6 mg L-1. The MPS-F ?13C varied from 22.8 to -20.8? at the upstream, -21.7 to -18.5 ? in the middle point and -19.9 to -18.4? downstream. A difference found in the MPS-F between upstream and downstream average of -3.1?. The lowest value of ?15N of -4.8 ? occurred at spring water JN1 and the highest value of 5.2? at a point characterized by urbanization (J8) and domestic sewage. MPS-G at the upstream was 82% higher than in the downstream section (J9=0.7mg L-1; J10=0.9mg L-1) and ?13C? varied in the range of -26.3 -24.4? at the headwaters, -25.1 to -23.6? in the middle stretch and -24.6 to -23.6? downstream, with a difference of -1.6? between the upstream and downstream. Values more enriched in MPS-F than in MPS-G, representing a more modified material in the long time. The MPS-G is a recent input material into the river reflecting the vegetation of the basin plateau. Thus, MPS and sediment reflect diverse uses in the different stretches of the basin, with predominance of forest ecosystem origin at the headwaters, pasture and agriculture mix in the middle stretch and urbanization marked by domestic sewage downstream of the river. MenosThe objective was to investigate the origin of the organic matter of the sediment and the particulate material in the Jaguari River, under the influence of different land uses. The basin, a few decades ago, replaced the original vegetation of Savanna Brazilian and Atlantic Forest (C3 plants), for several agricultural uses, predominantly pastures (C4 plants), small crops, eucalyptus plantations and urbanization. Currently, it is located in a region with strategic environmental and location characteristics, which allowed the intensification of disorderly agricultural, industrial and population development. The study began in January of 2015 (one hydrological year), with monthly collections in 13 sampling stations in the Jaguari River, with influence of forest ecosystem, agricultural crop, pasture and urban use. The suspended particulate material, thin (MPS-F) and coarse (MPS-G), fractionated in the field by sieving (63?m mesh) and quantified in mass concentration; the sediment collected randomly with dredge in August. The isotope ratio was determined on the Thermo Quest Finningan Delta Plus mass spectrometer. The highest concentrations of MPS-F observed at the upstream of River, being 21% higher than in the downstream, due to mountainous relief of the region, the maximum and minimum concentration was 70.5 and 8.6 mg L-1. The MPS-F ?13C varied from 22.8 to -20.8? at the upstream, -21.7 to -18.5 ? in the middle point and -19.9 to -18.4? downstream. A difference found in the MPS-... Mostrar Tudo |
|
Palavras-Chave: |
Isotopic composition; Watershed. |
|
Thesaurus NAL: |
Land use. |
|
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/165514/1/RA-FigueiredoRO-XVICongBrasLimnologia-2017-p142.pdf
|
|
Marc: |
LEADER 03334nam a2200205 a 4500
001 2078106
005 2018-02-21
008 2017 bl uuuu u00u1 u #d
100 1 $aCAMARGO, P. B. de
245 $aOrigin of organic matter and quantity of transported material from Jaguari river, SP and MG, Brazil.$h[electronic resource]
260 $aIn: CONGRESSO BRASILEIRO DE LIMNOLOGIA, 16., 2017, Rio de Janeiro. Recursos hídricos em crise: sustentabilidade, biodiversidade e integração de conhecimentos face a mudanças globais: resumos... Rio de Janeiro: Sociedade Brasileira de Limnologia, 2017. Ref. SE11. p. 142.$c2017
520 $aThe objective was to investigate the origin of the organic matter of the sediment and the particulate material in the Jaguari River, under the influence of different land uses. The basin, a few decades ago, replaced the original vegetation of Savanna Brazilian and Atlantic Forest (C3 plants), for several agricultural uses, predominantly pastures (C4 plants), small crops, eucalyptus plantations and urbanization. Currently, it is located in a region with strategic environmental and location characteristics, which allowed the intensification of disorderly agricultural, industrial and population development. The study began in January of 2015 (one hydrological year), with monthly collections in 13 sampling stations in the Jaguari River, with influence of forest ecosystem, agricultural crop, pasture and urban use. The suspended particulate material, thin (MPS-F) and coarse (MPS-G), fractionated in the field by sieving (63?m mesh) and quantified in mass concentration; the sediment collected randomly with dredge in August. The isotope ratio was determined on the Thermo Quest Finningan Delta Plus mass spectrometer. The highest concentrations of MPS-F observed at the upstream of River, being 21% higher than in the downstream, due to mountainous relief of the region, the maximum and minimum concentration was 70.5 and 8.6 mg L-1. The MPS-F ?13C varied from 22.8 to -20.8? at the upstream, -21.7 to -18.5 ? in the middle point and -19.9 to -18.4? downstream. A difference found in the MPS-F between upstream and downstream average of -3.1?. The lowest value of ?15N of -4.8 ? occurred at spring water JN1 and the highest value of 5.2? at a point characterized by urbanization (J8) and domestic sewage. MPS-G at the upstream was 82% higher than in the downstream section (J9=0.7mg L-1; J10=0.9mg L-1) and ?13C? varied in the range of -26.3 -24.4? at the headwaters, -25.1 to -23.6? in the middle stretch and -24.6 to -23.6? downstream, with a difference of -1.6? between the upstream and downstream. Values more enriched in MPS-F than in MPS-G, representing a more modified material in the long time. The MPS-G is a recent input material into the river reflecting the vegetation of the basin plateau. Thus, MPS and sediment reflect diverse uses in the different stretches of the basin, with predominance of forest ecosystem origin at the headwaters, pasture and agriculture mix in the middle stretch and urbanization marked by domestic sewage downstream of the river.
650 $aLand use
653 $aIsotopic composition
653 $aWatershed
700 1 $aCOSTA, C. F. G.
700 1 $aFIGUEIREDO, R. de O.
700 1 $aPICCOLO, M. C.
700 1 $aREIS, L. C.
700 1 $aMAJER, P. E. T.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Meio Ambiente (CNPMA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
