The purpose of this study was to investigate the content and depth distribution of SOC and its pools in selected cultivated and uncultivated soil profiles representing eroding, aggrading and stable sites. Representative soil profiles of Regosols and Calcisols were collected in a typical mountain agroecosystem of NE Spain (42° 01’ 42”N, 00 31’ 30”E) with continental-mediterranean climate and mean annual rainfall of around 500 mm. Soil redistribution patterns at the selected sites were characterized using fallout 137Cs radiotracer that allowed distinction of stable, eroded and deposition profiles. Nine profiles were in uncultivated soils (3 eroded, 3 deposition and 3 stable sites), 6 profiles were in cultivated soils (3 eroded and 3 deposition sites). A total of 112 samples were analysed for the content of SOC and the two organic pools, labile and recalcitrant carbon were measured by dry combustion method using a Leco RC-612 multiphase analyser on a sub-sample of the dried interval soil sample.

1 .pdf copy (A3) of the original poster from the authors. 1 .pdf copy (1 Pag.) of the abstract published by the Organization. © Author(s) 2011. CC Attribution 3.0 License.

This research was financially supported by the CICYT project MEDEROCAR (CGL2008-0831)

Peer reviewed