Organic carbon and nitrogen in soils of semiarid Argentina

ABSTRACT: Wind erosion is an important soil degradation process in semiarid environments that can affect soil organic carbon (C) and nitrogen (N) dynamics. Wind erosion can decrease the proportion of easily erodable 50 μm) were higher in VIRGIN than in both PASTURE and AGRICULTURE soils, indicating that cultivation promoted C and N losses in coarser fractions. AGRICULTURE promoted larger N than organic C losses in coarse fractions, indicating that nitrogenous compounds were more affected than C compounds. Organic C and N contents in