Soil properties relevant to land degradation in abandoned sloping fields in Aisa valley, Central Pyrenees (Spain)
DOI:
https://doi.org/10.3989/pirineos.1991.v137.196Keywords:
Soil properties, land degradation, erosion, mineralogy, aggregate stability, abandoned fields, Central PyreneesAbstract
A multi-approach characterization of soil properties in abandoned fields in the Aisa valley, at mid mountain in the Central Spanish Pyrenees, demonstrated that the soil's own peculiar characteristics are concerned with conservation problems. Aggregate stability and shrinkage tests pointed to a relatively good soil performance due to the aggregating role of organic matter and calcium carbonates, although calcium ions, in some instances, may exert and additional antagonistic role for a sealed surface, increasing runoff. On the other hand, soil micromorphology suggests that the poor condition of the soils is in some contradiction to paedogenic activity. These findings, together with the presence of ashes, support the hypothesis that land degradation in these areas is mainly related to human activity thought unsuitable management after land abandonment.
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Published
1991-06-30
How to Cite
Pardini, G., Aringhieri, R., Plana, F., & Gallart, F. (1991). Soil properties relevant to land degradation in abandoned sloping fields in Aisa valley, Central Pyrenees (Spain). Pirineos, 137, 95–109. https://doi.org/10.3989/pirineos.1991.v137.196
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