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dc.contributor.authorDurán, Jorge
dc.contributor.authorRodríguez, Alexandra
dc.contributor.authorFernández-Palacios, José María 
dc.contributor.authorGallardo, Antonio
dc.date.accessioned2020-02-19T09:59:53Z
dc.date.available2020-02-19T09:59:53Z
dc.date.issued2009
dc.identifier.urihttp://riull.ull.es/xmlui/handle/915/18404
dc.description.abstractThe concern that climate change may increase fire frequency and intensity has recently heightened the interest in the effects of wildfires on ecosystem functioning. Although short-term fire effects on forest soils are well known, less information can be found on the long-term effects of wildfires on soil fertility. Our objective was to study the 17-year effect of wildfires on forest net mineralization rates and extractable inorganic nitrogen (N) and phosphorus (P) concentrations. We hypothesize that (1) burned forest stands should exhibit lower net mineralization rates than unburned ones; (2) these differences would be greatest during the growing season; (3) differences between soil variables might also be observed among plots from different years since the last fire; and (4) due to fireresistant geochemical processes controlling P availability, this nutrient should recover faster than N. We used a wildfire chronosequence of natural and unmanaged Pinus canariensis forests in La Palma Island (Canary Islands). Soil samples were collected during winter and spring at 22 burned and unburned plots. We found significantly higher values for net N mineralization and extractable N pools in unburned plots. These differences were higher for the winter sampling date than for the spring sampling date. Unlike extractable N and N mineralization rates, extractable P levels of burned plots exhibited a gradual recovery over time after an initial decrease. These results demonstrate that P. canariensis forest soils showed low resilience after wildfires, especially for N, and that this disturbance might induce long-term changes in ecosystem functioning.es_ES
dc.description.sponsorshipMinisterio de Ciencia y Tecnologíaes_ES
dc.language.isoenes_ES
dc.publisherSpringer Berlin Heidelberges_ES
dc.relation.ispartofseriesBiology and Fertility of Soils, Vol. 45, N. 7, 2009;
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.titleChanges in net N mineralization rates and soil N and P pools in a pine forest wildfire chronosequencees_ES
dc.typeinfo:eu-repo/semantics/article
dc.identifier.doi10.1007/s00374-009-0389-4
dc.relation.projectIDREN 2003-08620-C0201es_ES
dc.relation.projectIDCGL 2006- 13665-C02-01es_ES
dc.rights.accessRightsinfo:eu-repo/semantics/embargoedAccesses_ES
dc.subject.keywordPinus canariensises_ES
dc.subject.keywordAmmonification ratees_ES
dc.subject.keywordNitrification ratees_ES
dc.subject.keywordSoil ammoniumes_ES
dc.subject.keywordSoil nitratees_ES
dc.subject.keywordSoil phosphatees_ES
dc.subject.keywordForest firees_ES
dc.subject.keywordtasa de amonificaciónes_ES
dc.subject.keywordtasa de nitrificaciónes_ES
dc.subject.keywordamonio en sueloes_ES
dc.subject.keywordnitrato en sueloes_ES
dc.subject.keywordfosfato en sueloes_ES
dc.subject.keywordfuego forestales_ES
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersiones_ES


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