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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
09/04/2015 |
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Data da última atualização: |
21/08/2015 |
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Autoria: |
SOUSA, L. P. de. |
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Afiliação: |
LETICIA PENNO DERETI, CNPF. |
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Título: |
A flora: uma abordagem sobre florestas. |
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Ano de publicação: |
2003 |
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Fonte/Imprenta: |
In: SEMINÁRIO SOBRE EDUCAÇÃO AMBIENTAL INTEGRADA PARA MULTIPLICADORES, 2002, Colombo. Os seis elementos: água, ar, solo, flora, fauna, ser humano: trabalhos apresentados. Colombo: Embrapa Florestas, 2003. |
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Páginas: |
p. 111-161 |
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Série: |
(Embrapa Florestas. Documentos, 84). |
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Idioma: |
Português |
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Thesagro: |
Educação Ambiental; Flora. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/122071/1/11-flora.pdf
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Marc: |
LEADER 00595naa a2200157 a 4500
001 2013155
005 2015-08-21
008 2003 bl uuuu u00u1 u #d
100 1 $aSOUSA, L. P. de
245 $aA flora$buma abordagem sobre florestas.
260 $c2003
300 $ap. 111-161
490 $a(Embrapa Florestas. Documentos, 84).
650 $aEducação Ambiental
650 $aFlora
773 $tIn: SEMINÁRIO SOBRE EDUCAÇÃO AMBIENTAL INTEGRADA PARA MULTIPLICADORES, 2002, Colombo. Os seis elementos: água, ar, solo, flora, fauna, ser humano: trabalhos apresentados. Colombo: Embrapa Florestas, 2003.
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Registro original: |
Embrapa Florestas (CNPF) |
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Voltar
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agrobiologia. Para informações adicionais entre em contato com cnpab.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
14/12/2000 |
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Data da última atualização: |
14/12/2000 |
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Autoria: |
STOYAN, H.; DE-POLLI, H.; BOHM, S.; ROBERTSON, G. P.; PAUL, E. A. |
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Título: |
Spatial heterogeneity of soil respiration and related properties at the plant scale. |
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Ano de publicação: |
2000 |
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Fonte/Imprenta: |
Plant and Soil, Dordrecht, v.222, p. 203-214, 2000. |
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Idioma: |
Inglês |
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Conteúdo: |
Geostatistical techniques were used to quantify the scale and degree of soil heterogeneity in 2 m2 plots around 9-year-old poplar trees and within a wheat field. Samples were taken during two years, on an unaligned grid, for analysis of soil respiration, C and N content, available P, gravimetric moisture, pH, nitrification potential, and root biomass. Kriged maps of soil respiration, moisture, and C content showed strong spatial structure associated with poplar trees but not with wheat rows. All soil properties showed higher autocorrelation in June than in April. Isopleth patchiness for all variates was less in June. This was associated with lower respiration rates due to lower litter decomposition. From the degree and scale of heterogeneity seen in this study, we conclude that the main causes of soil heterogeneity at this scale (2 m2) are likely to be found at micro scales controlled in part by plant root and plant residue patterns. These must be understood in the evaluation of ecosystem processes.
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Palavras-Chave: |
C; Chemicophysical properties; N. |
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Thesagro: |
Carbono; Nitrogênio; Ph; Propriedade Físico-Química; Respiração do Solo. |
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Thesaurus NAL: |
carbon; nitrogen; soil respiration. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01799naa a2200301 a 4500
001 1597245
005 2000-12-14
008 2000 bl --- 0-- u #d
100 1 $aSTOYAN, H.
245 $aSpatial heterogeneity of soil respiration and related properties at the plant scale.
260 $c2000
520 $aGeostatistical techniques were used to quantify the scale and degree of soil heterogeneity in 2 m2 plots around 9-year-old poplar trees and within a wheat field. Samples were taken during two years, on an unaligned grid, for analysis of soil respiration, C and N content, available P, gravimetric moisture, pH, nitrification potential, and root biomass. Kriged maps of soil respiration, moisture, and C content showed strong spatial structure associated with poplar trees but not with wheat rows. All soil properties showed higher autocorrelation in June than in April. Isopleth patchiness for all variates was less in June. This was associated with lower respiration rates due to lower litter decomposition. From the degree and scale of heterogeneity seen in this study, we conclude that the main causes of soil heterogeneity at this scale (2 m2) are likely to be found at micro scales controlled in part by plant root and plant residue patterns. These must be understood in the evaluation of ecosystem processes.
650 $acarbon
650 $anitrogen
650 $asoil respiration
650 $aCarbono
650 $aNitrogênio
650 $aPh
650 $aPropriedade Físico-Química
650 $aRespiração do Solo
653 $aC
653 $aChemicophysical properties
653 $aN
700 1 $aDE-POLLI, H.
700 1 $aBOHM, S.
700 1 $aROBERTSON, G. P.
700 1 $aPAUL, E. A.
773 $tPlant and Soil, Dordrecht$gv.222, p. 203-214, 2000.
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Embrapa Agrobiologia (CNPAB) |
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