| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Solos. |
|
Data corrente: |
21/01/2011 |
|
Data da última atualização: |
01/11/2021 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
CONTE, P.; DE PASQUALE, C.; NOVOTNY, E. H.; CAPONETTO, G.; LAUDICINA, V. A.; CIOFALO, M.; PANNO, M.; PALAZZOLO, E.; BADALUCCO, L.; ALONZO, G. |
|
Afiliação: |
PELLEGRINO CONTE, UNIVERSITÀ DEGLI STUDI DI PALERMO; CLAUDIO DE PASQUALE, UNIVERSITÀ DEGLI STUDI DI PALERMO; ETELVINO HENRIQUE NOVOTNY, CNPS; GIANLUCA CAPONETTO, UNIVERSITÀ DEGLI STUDI DI PALERMO; VITO ARMANDO LAUDICINA, UNIVERSITÀ DEGLI STUDI DI PALERMO; MAURIZIO CIOFALO, UNIVERSITÀ DEGLI STUDI DI PALERMO; MICHELE PANNO, UNIVERSITÀ DEGLI STUDI DI PALERMO; ERISTANNA PALAZZOLO, UNIVERSITÀ DEGLI STUDI DI PALERMO; LUIGI BADALUCCO, UNIVERSITÀ DEGLI STUDI DI PALERMO; GIUSEPPE ALONZO, UNIVERSITÀ DEGLI STUDI DI PALERMO. |
|
Título: |
CPMAS 13C NMR characterization of leaves and litters from the reafforestated area of mustigarufi in Sicily (Italy). |
|
Ano de publicação: |
2010 |
|
Fonte/Imprenta: |
The Open Magnetic Resonance Journal, v. 3, p. 89-95, 2010. |
|
DOI: |
http://dx.doi.org/10.2174/1874769801003010089 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Reafforestation is generally based on the planting of exotic fast growing tree species suitable for adapting to even harsh environments. Once the introduced plants ameliorate soil conditions, they can be progressively replaced by au- tochthonous plant species. Reafforestation is applied worldwide. However, only few studies on the effect of reafforesta- tion on lands from Mediterranean regions are available. This paper reports the characterization by cross polarization 13C NMR spectroscopy of fresh leaves and superficial litters from a reafforestated area in central Sicily (Italy). NMR assign- ment is attempted. A differentiation among the molecular systems within leaves and litters is also done on the basis of NMR assessment. Results showed that the main differences among the leaves of four forest trees (two eucalyptus spp., one cypress sp. and one pine sp.) occur in the distribution of the aromatic and alkyl carbons. In particular, the alkyl moie- ties in the eucalyptus spp. leaves were attributed to branched structures belonging to the eucalyptus oil, whereas linear fatty acids were more representetive in the NMR spectra of pine and cypress leaves. In addition, the aromatic carbons of the conifer leaves were assigned not only to lignin- and tannin-like structures, but also to common olefin carbons in un- saturated fatty acids and abietic acid-like systems. The spectra of the litters resembled, as expected, those of the leaves. However, the presence of very large carbohydrate NMR signals suggested that degradation processes were still ongoing in litters. A comparative evaluation of CPMAS 13C NMR spectra was done by applying principal component analysis. This paper confirmed the suitability of CPMAS 13C NMR spectroscopy in evaluating the differences among natural bio-masses which are the major nutrient sources for soil micro-organisms and the main input for humification processes. MenosReafforestation is generally based on the planting of exotic fast growing tree species suitable for adapting to even harsh environments. Once the introduced plants ameliorate soil conditions, they can be progressively replaced by au- tochthonous plant species. Reafforestation is applied worldwide. However, only few studies on the effect of reafforesta- tion on lands from Mediterranean regions are available. This paper reports the characterization by cross polarization 13C NMR spectroscopy of fresh leaves and superficial litters from a reafforestated area in central Sicily (Italy). NMR assign- ment is attempted. A differentiation among the molecular systems within leaves and litters is also done on the basis of NMR assessment. Results showed that the main differences among the leaves of four forest trees (two eucalyptus spp., one cypress sp. and one pine sp.) occur in the distribution of the aromatic and alkyl carbons. In particular, the alkyl moie- ties in the eucalyptus spp. leaves were attributed to branched structures belonging to the eucalyptus oil, whereas linear fatty acids were more representetive in the NMR spectra of pine and cypress leaves. In addition, the aromatic carbons of the conifer leaves were assigned not only to lignin- and tannin-like structures, but also to common olefin carbons in un- saturated fatty acids and abietic acid-like systems. The spectra of the litters resembled, as expected, those of the leaves. However, the presence of very large carbohydra... Mostrar Tudo |
|
Palavras-Chave: |
Litters; NMR; Reafforestation. |
|
Thesagro: |
Degradação Ambiental; Solo. |
|
Thesaurus Nal: |
leaves. |
|
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/25791/1/CPMAS-13C.pdf
|
|
Marc: |
LEADER 02822naa a2200313 a 4500
001 1873852
005 2021-11-01
008 2010 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.2174/1874769801003010089$2DOI
100 1 $aCONTE, P.
245 $aCPMAS 13C NMR characterization of leaves and litters from the reafforestated area of mustigarufi in Sicily (Italy).$h[electronic resource]
260 $c2010
520 $aReafforestation is generally based on the planting of exotic fast growing tree species suitable for adapting to even harsh environments. Once the introduced plants ameliorate soil conditions, they can be progressively replaced by au- tochthonous plant species. Reafforestation is applied worldwide. However, only few studies on the effect of reafforesta- tion on lands from Mediterranean regions are available. This paper reports the characterization by cross polarization 13C NMR spectroscopy of fresh leaves and superficial litters from a reafforestated area in central Sicily (Italy). NMR assign- ment is attempted. A differentiation among the molecular systems within leaves and litters is also done on the basis of NMR assessment. Results showed that the main differences among the leaves of four forest trees (two eucalyptus spp., one cypress sp. and one pine sp.) occur in the distribution of the aromatic and alkyl carbons. In particular, the alkyl moie- ties in the eucalyptus spp. leaves were attributed to branched structures belonging to the eucalyptus oil, whereas linear fatty acids were more representetive in the NMR spectra of pine and cypress leaves. In addition, the aromatic carbons of the conifer leaves were assigned not only to lignin- and tannin-like structures, but also to common olefin carbons in un- saturated fatty acids and abietic acid-like systems. The spectra of the litters resembled, as expected, those of the leaves. However, the presence of very large carbohydrate NMR signals suggested that degradation processes were still ongoing in litters. A comparative evaluation of CPMAS 13C NMR spectra was done by applying principal component analysis. This paper confirmed the suitability of CPMAS 13C NMR spectroscopy in evaluating the differences among natural bio-masses which are the major nutrient sources for soil micro-organisms and the main input for humification processes.
650 $aleaves
650 $aDegradação Ambiental
650 $aSolo
653 $aLitters
653 $aNMR
653 $aReafforestation
700 1 $aDE PASQUALE, C.
700 1 $aNOVOTNY, E. H.
700 1 $aCAPONETTO, G.
700 1 $aLAUDICINA, V. A.
700 1 $aCIOFALO, M.
700 1 $aPANNO, M.
700 1 $aPALAZZOLO, E.
700 1 $aBADALUCCO, L.
700 1 $aALONZO, G.
773 $tThe Open Magnetic Resonance Journal$gv. 3, p. 89-95, 2010.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Solos (CNPS) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
| Registros recuperados : 2 | |
| 2. |  | CONTE, P.; DE PASQUALE, C.; NOVOTNY, E. H.; CAPONETTO, G.; LAUDICINA, V. A.; CIOFALO, M.; PANNO, M.; PALAZZOLO, E.; BADALUCCO, L.; ALONZO, G. CPMAS 13C NMR characterization of leaves and litters from the reafforestated area of mustigarufi in Sicily (Italy). The Open Magnetic Resonance Journal, v. 3, p. 89-95, 2010.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 5 |
| Biblioteca(s): Embrapa Solos. |
|    |
| Registros recuperados : 2 | |
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
