Characterization of Glycerol-Extractable Organic Matter from Etna Soils of Different Ages
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Cited by (2)
Development and spatial distribution of soils on an active volcano: Mt Etna, Sicily
2016, CatenaCitation Excerpt :Stabilisation of organic matter was related to pyrophosphate-extractable Al and Fe phases, kaolinite and clay content, rather than to imogolite-type material. Baglieri et al. (2010) find, however, that glycerol-extractable soil organic fractions were closely bound to SROMS, particularly in older (> 9000 yr) soils (Udivitrands), and consequently less subject to biodegradation. From their first analysis of five Vitric Andosols (IUSS Working Group WRB, 2006) in an elevation sequence (551 to 1772 m) on 10,000 to 15,000 yr BP lava, on the north-east flank of Mt Etna, Egli et al. (2007) conclude that organic C stocks, (and imogolite-type minerals and crystalline Fe-oxyhydroxides) decreased with elevation.
Project supported by the Research Foundation of University of Catania, Italy (No. ORCT067410/2006).