Root trenching: a useful tool to estimate autotrophic soil respiration? A case study in an Austrian mountain forest

Díaz Pinés, Eugenio; Schindlbacher, Andreas; Pfeffer, Michael; Jandl, Robert; Zechmeister-Boltenstern, Sophie y Rubio Sánchez, Agustín (2010). Root trenching: a useful tool to estimate autotrophic soil respiration? A case study in an Austrian mountain forest. "European Journal of Forest Research", v. 125 (n. 1); pp. 101-109. ISSN 1612-4669. https://doi.org/10.1007/s10342-008-0250-6.

Descripción

Título: Root trenching: a useful tool to estimate autotrophic soil respiration? A case study in an Austrian mountain forest
Autor/es:
  • Díaz Pinés, Eugenio
  • Schindlbacher, Andreas
  • Pfeffer, Michael
  • Jandl, Robert
  • Zechmeister-Boltenstern, Sophie
  • Rubio Sánchez, Agustín
Tipo de Documento: Artículo
Título de Revista/Publicación: European Journal of Forest Research
Fecha: Enero 2010
Volumen: 125
Materias:
Palabras Clave Informales: Trenching • Soil CO2 eZux • Rhizosphere •Autotrophic respiration • Heterotrophic respiration •Win-Rhizo • PLFAs • Fine root decomposition
Escuela: E.T.S.I. Montes (UPM) [antigua denominación]
Departamento: Silvopascicultura [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

Texto completo

[img]
Vista Previa
PDF (Document Portable Format) - Se necesita un visor de ficheros PDF, como GSview, Xpdf o Adobe Acrobat Reader
Descargar (454kB) | Vista Previa

Resumen

We conducted a trenching experiment in a mountain forest in order to assess the contribution of theautotrophic respiration to total soil respiration and evaluate trenching as a technique to achieve it. We hypothesised that the trenching experiment would alter both microbial biomass and microbial community structure and that Wne roots (less than 2 mm diameter) would be decomposed within one growing season. Soil CO2 eZux was measured roughlybiweekly over two growing seasons. Root presence and morphology parameters, as well as the soil microbial community were measured prior to trenching, 5 and 15 months after trenching. The trenched plots emitted about 20 and 30% less CO2 than the control plots in the Wrst and secondgrowing season, respectively. Roots died in trenched plots, but root decay was slow. After 5 and 15 months, Wne root biomass was decreased by 9% (not statistically diferent)and 30%, (statistically diVerent) respectively. When wecorrected for the additional trenched-plot CO2 eZux due to Wne root decomposition, the autotrophic soil respiration rose to »26% of the total soil respiration for the Wrst growing season, and to »44% for the second growing season.Soil microbial biomass and community structure was not altered by the end of the second growing season. We conclude that trenching can give accurate estimates of the autotrophic and heterotrophic components of soil respiration, ifmethodological side eVects are accounted for, only.

Más información

ID de Registro: 2934
Identificador DC: http://oa.upm.es/2934/
Identificador OAI: oai:oa.upm.es:2934
Identificador DOI: 10.1007/s10342-008-0250-6
URL Oficial: http://www.springerlink.com/content/d7725848615g6837/fulltext.pdf
Depositado por: Memoria Investigacion
Depositado el: 06 May 2010 09:04
Ultima Modificación: 20 Abr 2016 12:33
  • Open Access
  • Open Access
  • Sherpa-Romeo
    Compruebe si la revista anglosajona en la que ha publicado un artículo permite también su publicación en abierto.
  • Dulcinea
    Compruebe si la revista española en la que ha publicado un artículo permite también su publicación en abierto.
  • Recolecta
  • e-ciencia
  • Observatorio I+D+i UPM
  • OpenCourseWare UPM