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Memorias de investigación
Communications at congresses:
Effects of biochar on organic matter dynamics in unamended soils and soils amended with municipal solid waste compost and sewage sludge
Year:2015
Research Areas
  • Engineering
Information
Abstract
Biochar is a loosely-defined C-rich solid byproduct obtained from biomass pyrolysis, which is intended for use as a soil amendment. A full understanding of the agronomic and environmental potential of biochar, especially its potential as a C sequestration strategy, requires a full understanding of its effects on native soil organic matter, as well as of its interactions with other organic amendments applied to soil. Here we determined the organic C distribution in an arable soil amended with biochar at rates of 0 and 20 t ha-1 in a factorial combination with two types of organic amendment (viz. municipal solid waste compost and sewage sludge) in a field experiment under Mediterranean conditions. The analysis of variance revealed that biochar and organic amendment factors increased significantly total organic C and mineral-associated organic C contents, and had little effect on intra-macroaggregate and intramicroaggregate organic C pools. Free soil organic C content was significantly affected by biochar application, but not by the organic amendments. Especially noteworthy were the interaction effects found between the biochar and organic amendment factors for mineral-associated organic C contents, which suggested a promoting action of biochar on C stabilization in organically-amended soils.
International
Si
Congress
EGU General Assembly 2015
960
Place
Viena
Reviewers
Si
ISBN/ISSN
1607-7962
Start Date
12/04/2015
End Date
17/04/2015
From page
1700
To page
1700
Geophysical Research Abstracts
Participants
  • Autor: César Plaza (Consejo Superior de Investigaciones Científicas)
  • Autor: Beatrice Giannetta (University of Foggia)
  • Autor: José Manuel Fernández (Consejo Superior de Investigaciones Científicas)
  • Autor: Gabriel Gasco Guerrero (UPM)
  • Autor: Ana Maria Mendez Lazaro (UPM)
  • Autor: Esther G. López de Sa (Consejo Superior de Investigaciones Científicas)
  • Autor: Claudio Zaccone (University of Foggia)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Valorización de Recursos
  • Departamento: Ingeniería Geológica y Minera
  • Departamento: Producción Agraria
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