Water erosion and soil properties patterns along selected rainfall events in cultivated and abandoned terraced fields under renaturalisation
dc.contributor.author
dc.date.accessioned
2017-07-27T07:34:23Z
dc.date.available
2017-07-27T07:34:23Z
dc.date.issued
2017-08-01
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0341-8162
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dc.description.abstract
Current cultivated soils (C) and soils under different age of agricultural abandonment and plant cover like forest (F), meadows (M) and scrubs (S) were surveyed at any high (H) or low (L) rainfall event generating runoff to record erosion and both dissolved and eroded carbon and nitrogen. This survey was conducted from January 2009 to April 2010 and was also addressed to determine soil properties such as surface temperature (ST), moisture (SM), bulk density (BD), shear strength (SS), pH, organic carbon (SOC), total nitrogen (N T) , total phosphorus (P T ), CO 2 emission, glomalin (GRSP), and β-Glucosidase, Phosphatase and Protease activities. The overall data set allowed accomplishing with the objective of the research, seeking differences in soil properties according to the previous land use, land abandonment and repeated fire occurrence. ANOVA of repeated measures showed runoff variance statistically significant within soil uses at L rainfall (p < 0.05). Eroded soil and eroded carbon varied significantly among soil environments (p < 0.05) at both H and L rainfall. However, erosion rates were low when compared to other Spanish sites. Soils under meadows (M) showed higher SOC and GRSP, and higher enzyme activities, and were identified as important natural firebreaks, besides their susceptibility to sediment and nutrient depletion. Similarly, soils F and S, though repeatedly affected by fire, showed satisfactory soil properties. The poorest soil properties were found in cultivated soils (C) that increased their erosion rates by 838%, 733% and 188% with respect to F, S and M soils along the observed period. In general, soils with higher organic carbon content (M > S > F) showed proportionally lesser CO 2 emission, indicating their tendency to act as carbon sink. The shallowness of the soil profiles, overgrazing and frequent fire occurrence were found to be soil ecosystems threatening elements in areas deserving special attention for the risk of irreversible degradation processes. Unpredictable and erratic fire occurrence all over the area also suggests environmental protection through prevention plans
dc.description.sponsorship
The research project CGL2007-66644-C04-02 and the pre-doctoral grant BES-2008-010099 funded by the Ministry of Science and Innovation- MICIN enabled this research work
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application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
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info:eu-repo/grantAgreement/MEC//CGL2007-66644-C04-02/ES/ESTUDIO INTEGRADO DE LOS PROCESOS HIDROLOGICOS Y EROSIVOS, A ESCALA DE LADERA, EN AMBIENTES MEDITERRANEOS CON DIFERENTE USO DEL SUELO/
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Reproducció digital del document publicat a: http://dx.doi.org/10.1016/j.catena.2017.03.010
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© Catena, 2017, vol. 155, p. 114-126
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Articles publicats (D-EQATA)
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Tots els drets reservats
dc.subject
dc.title
Water erosion and soil properties patterns along selected rainfall events in cultivated and abandoned terraced fields under renaturalisation
dc.type
info:eu-repo/semantics/article
dc.rights.accessRights
info:eu-repo/semantics/embargoedAccess
dc.embargo.terms
Cap
dc.date.embargoEndDate
info:eu-repo/date/embargoEnd/2026-01-01
dc.type.version
info:eu-repo/semantics/publishedVersion
dc.identifier.doi
dc.identifier.idgrec
026659
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dc.relation.ProjectAcronym