RT info:eu-repo/semantics/article
T1 Wildfire changes the spatial pattern of soil nutrient availability in Pinus canariensis forests
A1 Rodríguez, Alexandra
A1 Durán, Jorge
A1 Fernández-Palacios, José María
A1 Gallardo, Antonio
K1 forest wildfire
K1 ionic exchange membrane
K1 SADIE
K1 soil nutrient availability
K1 spatial heterogeneity
K1 incendios forestales
K1 membrana de intercambio iónico
K1 disponibilidad de nutrientes en el suelo
K1 heterogeneidad espacial
AB Soil resources are heterogeneously distributed in terrestrial plant communities. This heterogeneityis important because it determines the availability of local soil resources. A forest fire may change thespatial 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 resourcesis scarce.We hypothesized that, on a short-term basis, wildfire would change the spatial patterns of soil Nand P availability. To test this hypothesis, we selected two Pinus canariensis forests burned in 2005and 2000, respectively, and a third forest that was unburned since at least 1990 (unburned). We incubatedionic exchange membranes (IEMs) in replicated plots to estimate soil N and P availability andcharacterized 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 werehigher 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 areawould find higher soil resources, but also higher small-scale heterogeneity in nutrients, which mayhave a major impact on the performance of individual plants and on the forest structure and dynamics.
PB Springer Verlag
YR 2009
FD 2009
LK http://riull.ull.es/xmlui/handle/915/18180
UL http://riull.ull.es/xmlui/handle/915/18180
LA en
NO Ministerio de Ciencia y Tecnología
DS Repositorio institucional de la Universidad de La Laguna
RD 27-dic-2024