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Soil management effects on aggregate dynamics in semiarid Aragon (NE Spain)

AuthorsÁlvaro-Fuentes, Jorge ; Arrúe Ugarte, José Luis ; López Sánchez, María Victoria ; Gracia Ballarín, Ricardo
KeywordsSoil aggregation
Cropping systems
Semiarid areas
Issue Date25-May-2007
CitationScience of the Total Environment, Volume 378, Issues 1-2, 25 May 2007, Pages 179-182
AbstractDuring decades, in semiarid rainfed Aragon, intensive soil tillage and low crop residue input have led to the loss of soil structure and soil degradation. Conservation tillage and cropping intensification can improve soil structure in these areas. The objective of this study was to determine the influence of three different tillage systems (traditional tillage, reduced tillage and no-tillage) under two cropping systems (fallow-barley rotation and barley monoculture) on soil aggregation dynamics during a cropping season. A decrease in tillage intensity resulted in a higher mean size of dry aggregates and a greater water aggregate stability in both cropping systems particularly under no-tillage.
DescriptionThe definitive version is available at: http://www.sciencedirect.com/science/journal/00489697
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