Influence of denitrifiers abundance on N2O emissions in long term tillage system under a rainfed legume crop

Téllez del Río, Ángela; García Marco, Sonia; Navas, M.; Ábalos Rodríguez, Diego; Rodriguez Palenzuela, Pablo; Lopez Solanilla, Emilia; Tenorio, J. L. y Vallejo Garcia, Antonio (2013). Influence of denitrifiers abundance on N2O emissions in long term tillage system under a rainfed legume crop. En: "V International Conference on Environmental, Industria and Applied Microbiology. BioMicroWorld 2013.", 02/10/2013 - 04/10/2013, Madrid (España). ISBN 978-90-8686-243-6.

Descripción

Título: Influence of denitrifiers abundance on N2O emissions in long term tillage system under a rainfed legume crop
Autor/es:
  • Téllez del Río, Ángela
  • García Marco, Sonia
  • Navas, M.
  • Ábalos Rodríguez, Diego
  • Rodriguez Palenzuela, Pablo
  • Lopez Solanilla, Emilia
  • Tenorio, J. L.
  • Vallejo Garcia, Antonio
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: V International Conference on Environmental, Industria and Applied Microbiology. BioMicroWorld 2013.
Fechas del Evento: 02/10/2013 - 04/10/2013
Lugar del Evento: Madrid (España)
Título del Libro: Industrial, medical and environmental applications of microorganisms. Current status and trends.
Fecha: 2013
ISBN: 978-90-8686-243-6
Materias:
Escuela: E.T.S.I. Agrónomos (UPM) [antigua denominación]
Departamento: Química y Análisis Agrícola [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

Current studies about nitrous oxide (N2O) emissions from legume crops have raised considerable doubt, observing a high variability between sites (0.03-7.09 kg N2O–N ha−1 y -1) [1]. This high variability has been associated to climate and soil conditions, legume species and soil management practices (e.g. conservation or conventional tillage). Conservation tillage (i.e. no tillage (NT) and minimum tillage (MT)) has spread during the last decades because promotes several positive effects (increase of soil organic content, reduction of soil erosion and enhancement of carbon (C) sequestration). However, these benefits could be partly counterbalanced by negative effects on the release of N2O emissions. Among processes responsible for N2O production and consumption in soils, denitrification plays an importantrole both in tilled and no-tilled ropping systems [2]. Recently, amplification of functional bacterial genes involved in denitrification is being used to examine denitrifiers abundance and evaluate their influence on N2O emissions. NirK and nirS are functional genes encoding the cytochrome cd1 and copper nitrite reductase, which is the key enzyme regulating the denitrification process.

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ID de Registro: 26366
Identificador DC: http://oa.upm.es/26366/
Identificador OAI: oai:oa.upm.es:26366
Depositado por: Memoria Investigacion
Depositado el: 01 Jul 2014 15:39
Ultima Modificación: 22 Sep 2014 11:41
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