RT info:eu-repo/semantics/contributionToPeriodical T1 Carbon in heartwood, sapwood and bark along stem profile in three Mediterranean Pinus species A1 Herrero de Aza, Celia A1 Turrión Nieves, María Belén A1 Pando Fernández, Valentín K1 Pinos-Mediterráneo, Zona del K1 Bosques y silvicultura-Mediterráneo, Zona del AB ContextUnderstanding biological processes in forests is necessary to orientate ecosystem management towards potential C sequestration. To achieve this, information is required about changes in forest biomass C pools, including the stem components (bark, sapwood and heartwood).AimsThis study aimed to determine whether there are differences in C concentration in axial and radial directions within stem biomass in Pinus nigra, Pinus pinaster and Pinus sylvestris.MethodsWood samples from a permanent plantation in northern Spain were examined for C concentration and wood bulk density.ResultsThe results showed that C concentration was higher in heartwood than in sapwood in the three species. Pinusspp. sapwood C concentration increased along the stem, while the C concentration in heartwood tissue showedthe opposite behavior. In bark, Pinus pinaster showed a decreasing trend, in contrast to Pinus nigra and Pinussylvestris, where higher values were found at the base and top of the stem. Finally, wood bulk density decreased in heartwood, sapwood and bark areas when stem height increased. Estimating C content taking into accountdifferent anatomical parts and heights is important in considering the specificity of the different parts because oftheir potential commercial or ecological use in forest ecosystems. PB Springer SN 1297-966X YR 2011 FD 2011 LK http://uvadoc.uva.es/handle/10324/7658 UL http://uvadoc.uva.es/handle/10324/7658 LA eng NO Annals of Forest Science (2011) 68: 1067 - 1076 NO Instituto Universitario de Gestión Forestal Sostenible DS UVaDOC RD 26-abr-2024