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Memorias de investigación
Artículos en revistas:
Does tree species composition control soil organic carbon pools in Mediterranean mountain forests?
Año:2011
Áreas de investigación
  • Agricultura
Datos
Descripción
We compared soil organic carbon (SOC) stocks and stability under two widely distributed tree species in the Mediterranean region: Scots pine (Pinus sylvestris L.) and Pyrenean oak (Quercus pyrenaica Willd.) at their ecotone. We hypothesised that soils under Scots pine store more SOC and that tree species composition controls the amount and biochemical composition of organic matter inputs, but does not influence physico-chemical stabilization of SOC. At three locations in Central Spain, we assessed SOC stocks in the forest floor and down to 50cm in the mineral in pure and mixed stands of Pyrenean oak and Scots pine, as well as litterfall inputs over approximately 3 years at two sites. The relative SOC stability in the topsoil (0?10 cm) was determined through size-fractionation (53_m) into mineral-associated and particulate organic matter and through KMnO4-reactive C and soil C:N ratio. Scots pine soils stored 95?140Mgha?1 of C (forest floor plus 50cm mineral soil), roughly the double than Pyrenean oak soils (40?80Mgha?1 of C), with stocks closely correlated to litterfall rates. Differences were most pronounced in the forest floor and uppermost 10cm of the mineral soil, but remained evident in the deeper layers. Biochemical indicators of soil organic matter suggested that biochemical recalcitrance of soil organic matter was higher under pine than under oak, contributing as well to a greater SOC storage under pine. Differences in SOC stocks between tree species were mainly due to the particulate organic matter (not associated to mineral particles). Forest conversion from Pyrenean oak to Scots pine may contribute to enhance soil C sequestration, but only in form of mineral-unprotected soil organic matter.
Internacional
Si
JCR del ISI
Si
Título de la revista
FOREST ECOLOGY AND MANAGEMENT
ISSN
0378-1127
Factor de impacto JCR
1,992
Información de impacto
Volumen
262
DOI
10.1016/j.foreco.2011.02.004
Número de revista
10
Desde la página
1985
Hasta la página
1904
Mes
SIN MES
Ranking
6/53 FORESTRY (SCI)
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Eugenio Díaz-pines López De Los Mozos
  • Autor: Agustin Rubio Sánchez
  • Autor: Helga Van Miegroet
  • Autor: Fernando Montes
  • Autor: Marta Benito Capa (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Calidad de Suelos y Aplicaciones medioambientales
  • Departamento: Edafología
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