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Charcoal and stable soil organic matter as indicators of fire frequency, climate and past vegetation in volcanic soils of Mt. Etna, Sicily
(supprimer)
. The distribution into labile and stable organic fractions provided insight into the stabilisation and turnover mechanisms of soil organic matter (SOM). The results suggest that a high fire frequency is a powerful rejuvenating factor for soil organic matter
, removing part of the old SOM and promoting plant recolonisation that is a source of young SOM.