Michele Panno
University of Palermo
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Featured researches published by Michele Panno.
The Open Magnetic Resonance Journal | 2010
Pellegrino Conte; Claudio De Pasquale; Etelvino H. Novotny; Gianluca Caponetto; Vito Armando Laudicina; Maurizio Ciofalo; Michele Panno; Eristanna Palazzolo; Luigi Badalucco; Giuseppe Alonzo
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 13 C 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 13 C NMR spectra was done by applying principal component analysis. This paper confirmed the suitability of CPMAS 13 C NMR spectroscopy in evaluating the differences among natural bio-masses
Hydrological Sciences Journal-journal Des Sciences Hydrologiques | 2005
Costanza Di Stefano; Vito Ferro; Eristanna Palazzolo; Michele Panno
Abstract Because the properties of eroded soil affect the deposition phenomena and transport capacity of chemical materials by eroded particles, recent research is trying to link the grain-size distribution of the eroded sediment to that of the original soil in order to explain the enrichment of chemical content of the sediment with the respect to the parent soil. In this study, the spatial distribution of nitrogen, phosphorus and total organic carbon was firstly deduced using the measurements carried out in 47 soil samples distributed over a forested basin together with a kriging interpolation method. Then the load of each chemical was calculated at morphological unit and basin scales using the above-mentioned spatial distributions and sediment yield values calculated by the SEDD (SEdiment Delivery Distributed) model, which couples the universal soil loss equation with a spatial disaggregation criterion of sediment delivery processes. Finally, at basin scale, a new expression of the enrichment ratio of a given chemical was applied.
Biology and Fertility of Soils | 2009
Vito Armando Laudicina; María Dolores Hurtado; Luigi Badalucco; Antonio Delgado; Eristanna Palazzolo; Michele Panno
Hydrological Sciences Journal-journal Des Sciences Hydrologiques | 2005
Costanza Di Stefano; Vito Ferro; Eristanna Palazzolo; Michele Panno
Journal of Agricultural Engineering Research | 2000
C. Di Stefano; Vito Ferro; Eristanna Palazzolo; Michele Panno
Micologia Italiana | 2010
Eristanna Palazzolo; Michele Panno; Maria Letizia Gargano; Giuseppe Venturella
Journal of Agricultural Engineering Research | 2000
C. Di Stefano; Vito Ferro; Eristanna Palazzolo; Michele Panno
Archive | 2013
Michele Panno; Salvatore Raimondi; Vito Barbera; Eliseo Perrone; Raimondi S., Perrone E., Barbera V., Panno M.
The Open Magnetic Resonance Journal | 2010
Pellegrino Conte; Claudio De Pasquale; Etelvino H. Novotny; Gianluca Caponetto; Vito Armando Laudicina; Maurizio Ciofalo; Michele Panno; Eristanna Palazzolo; Luigi Badalucco; Giuseppe Alonzo
Archive | 2009
Michele Panno; Eristanna Palazzolo; Luigi Badalucco; Vito Armando Laudicina; Antonino Indorante