Influence of the forest cover on the organic matter evolution along the profile of some volcanic of Mt Etna Park. The influence of the forest cover on the organic matter evolution along the profile of some volcanic soils of Mt. Etna Park was studied. The organic matter was surveyed along the profile (0-60 cm) under different forest covers (castanea sativa, Quercus ilex, Quercus pubescens), in all its forms: oxidable organic carbon, total organic carbon (TOC), extractable organic carbon (TEC) and humified carbon (HA+FA). Significant differences were found among the mentioned forest species and along the profile. The samples taken in consideration pointed out a noticeable decrease in carbon content, in all its forms, with depth; soils under holm-oak showed values considerably higher than those ones under downy oak and chestnut tree. The parameters of humification were calculated: organic carbon not humified (NH), degree of humification (DH%), rate of humification (HR%) and index humification (HI)
e' stata valutata l'influenza della copertura forestale sull'evoluzione della sostanza organica lungo il profilo (o-60 cm) di alcuni suoli vulcanici del Parco dell'Etna sotto diverse coperture forestali (Castanea sativa, Quercus ilex, Quercus pubescens). Sono state determinate le sue forme: sostanza organica ossidabile, carbonio organico totale (TOC), carbonio organio estraibile (TEC) e carbonio umico (HA+FA). Sono state riscontrate differenze significative tra i suoli prelevati nei diversi siti e lungo il profilo; in tutti i casi è stata riscontrata diminuzione significativa dei valori di carbonio in tutte le sue forme con la profondità, i suoli sotto leccio hanno presentato contenuti significativamente più alti rispetto ai suoli su roverella e castagno. Dai dati ottenuti sono stati calcolati i parametri di umificazione: carbonio organico non umificato (NH), grado di umificazione (DH%), tasso di umificazione (HR%) e indice di unificazione (HI).
Influenza della copertura forestale sullevoluzione della sostanza organica lungo il profilo di alcuni suoli vulcanici del parco Etna
BENINTENDE, Pio Giuseppe;
2002-01-01
Abstract
Influence of the forest cover on the organic matter evolution along the profile of some volcanic of Mt Etna Park. The influence of the forest cover on the organic matter evolution along the profile of some volcanic soils of Mt. Etna Park was studied. The organic matter was surveyed along the profile (0-60 cm) under different forest covers (castanea sativa, Quercus ilex, Quercus pubescens), in all its forms: oxidable organic carbon, total organic carbon (TOC), extractable organic carbon (TEC) and humified carbon (HA+FA). Significant differences were found among the mentioned forest species and along the profile. The samples taken in consideration pointed out a noticeable decrease in carbon content, in all its forms, with depth; soils under holm-oak showed values considerably higher than those ones under downy oak and chestnut tree. The parameters of humification were calculated: organic carbon not humified (NH), degree of humification (DH%), rate of humification (HR%) and index humification (HI)I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
