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Wildfire changes the spatial pattern of soil nutrient availability in Pinus canariensis forests / Alexandra Rodríguez in Annals of Forest Science, Vol 66 n° 2 (march 2009)  

Public [article]  inAnnals of Forest Science > Vol 66 n° 2 (march 2009) . - n° 210 Titre : Wildfire changes the spatial pattern of soil nutrient availability in Pinus canariensis forests Titre original : Un incendie modifie la configuration spatiale de la disponibilité des éléments nutritifs dans les sols de forêts de Pinus canariensis Type de document : Article/Communication Auteurs : Alexandra Rodríguez, Auteur ; Jorge Durán, Auteur ; José María Fernández-Palacios, Auteur ; Antonio Gallardo, Auteur Année de publication : 2009 Article en page(s) : n° 210 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Végétation [Termes IGN] incendie de forêt [Termes IGN] nutriment végétal [Termes IGN] Pinus canariensis [Termes IGN] positionnement absolu [Termes IGN] sol forestier Résumé : (auteur) Soil resources are heterogeneously distributed in terrestrial plant communities. This heterogeneity is important because it determines the availability of local soil resources. A forest fire may change the spatial distribution of soil nutrients, affecting nutrition and survival of colonizing plants. However, specific information on the effects of ecosystem disturbance on the spatial distribution of soil resources is scarce. We hypothesized that, on a short-term basis, wildfire would change the spatial patterns of soil N and P availability. To test this hypothesis, we selected two Pinus canariensis forests burned in 2005 and 2000, respectively, and a third forest that was unburned since at least 1990 (unburned). We incubated ionic exchange membranes (IEMs) in replicated plots to estimate soil N and P availability and characterized the spatial pattern using SADIE (Spatial Analysis by Distance Indices). Mineral N, NO3-N and PO4-P availability, and aggregation and cluster indices for all nutrients were higher in the 2005 wildfire plots than in the 2000 wildfire and unburned plots. Our results suggest that surviving plants or new individuals becoming established in a burned area would find higher soil resources, but also higher small-scale heterogeneity in nutrients, which may have a major impact on the performance of individual plants and on the forest structure and dynamics. Numéro de notice : A2009-721 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1051/forest/2008092 Date de publication en ligne : 28/02/2009 En ligne : https://www.afs-journal.org/articles/forest/abs/2009/02/f08300/f08300.html Format de la ressource électronique : url article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=71950 [article]

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Code-barres	Cote	Support	Localisation	Section	Disponibilité
IFN-001-P000317	PER	Revue	Nogent-sur-Vernisson	Salle périodiques	Exclu du prêt