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Title

Occurrence and intensity of wild boar disturbances, effects on the physical and chemical soil properties of alpine grasslands

AuthorsBueno, C. Guillermo ; Azorín-Molina, César ; Gómez García, Daniel ; Alados, Concepción L. ; Badía, David
Issue Date2013
PublisherKluwer Academic Publishers
CitationPlant and Soil 373: 243-256 (2013)
AbstractBackground and aims: Physical and chemical soil properties determine local plant conditions and resources, affecting plants' ability to respond to disturbances. In alpine grasslands, wild boar disturbances occur at different intensities, what may affect differently their soil properties. Alpine soils from five contrasted plant communities were explored within and outside disturbances, accounting for an overall and community scale effect. Additionally, we analysed the effect of disturbance intensity on soil NO3 --N and NH4 +-N. Methods: Soils were analyzed for physical (bulk density, moisture content and electrical conductivity), and chemical properties (pH, total N and C, oxidizable C, C:N ratio, available K, P, Ca2+, Na+ and Mg2+). Resin bags were used to compare the effect of the disturbance occurrence and intensity on soil NO3 --N and NH4 +-N. Results: Bulk density, total N and NO3 --N concentration were significantly higher in disturbed areas, while soil moisture, C:N, NH4 +-N, Na+, Mg2+ and Ca2+ concentrations were significantly lower. However, low disturbance intensity reduced NO3 --N and increased NH4 +-N concentrations. Conclusions: Wild boar occurrence and intensity strongly alter physical and chemical conditions of alpine soils, increasing soil compaction, and altering the availability of N forms. These changes may affect most plant species, thus affecting the structure and dynamics of alpine plant communities. © 2013 Springer Science+Business Media Dordrecht.
URIhttp://hdl.handle.net/10261/94912
DOI10.1007/s11104-013-1784-z
Identifiersdoi: 10.1007/s11104-013-1784-z
issn: 0032-079X
Appears in Collections:(IPE) Artículos
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