English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/100970
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Citado 14 veces en Web of Knowledge®  |  Ver citas en Google académico
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar otros formatos: Exportar EndNote (RIS)Exportar bibText (RIS)Exportar csv (RIS)
Título

Soil carbon dioxide and methane fluxes as affected by tillage and N fertilization in dryland conditions

AutorPlaza-Bonilla, Daniel ; Cantero-Martínez, Carlos; Bareche, Javier; Arrúe Ugarte, José Luis ; Álvaro-Fuentes, Jorge
Palabras claveCarbon dioxide
Mediterranean dryland
Methane
Nitrogen fertilization
Tillage
Soil organic carbon
Yield-scaled
GHG emissions
Fecha de publicaciónago-2014
EditorSpringer
CitaciónPlaza-Bonilla D, Cantero-Martínez C, Bareche J, Arrúe JL, Álvaro-Fuentes J. Soil carbon dioxide and methane fluxes as affected by tillage and N fertilization in dryland conditions. Plant and Soil 381 (1-2): 111-130 (2014)
ResumenBackground and aims The effects of tillage and N fertilization on CO2 and CH4 emissions are a cause for concern worldwide. This paper quantifies these effects in a Mediterranean dryland area. Methods CO2 and CH4 fluxes were measured in two field experiments. A long-term experiment compared two types of tillage (NT, no-tillage, and CT, conventional intensive tillage) and three N fertilization rates (0, 60 and 120 kg N ha−1). A short-term experiment compared NT and CT, three N fertilization doses (0, 75 and 150 kg N ha−1) and two types of fertilizer (mineral N and organic N with pig slurry). Aboveground and root biomass C inputs, soil organic carbon stocks and grain yield were also quantified. Results The NT treatment showed a greater mean CO2 flux than the CT treatment in both experiments. In the long-term experiment CH4 oxidation was greater under NT, whereas in the short-term experiment it was greater under CT. The fertilization treatments also affected CO2 emissions in the short-term experiment, with the greatest fluxes when 75 and 150 kg organic N ha−1 was applied. Overall, the amount of CO2 emitted ranged between 0.47 and 6.0 kg CO2−equivalent kg grain−1. NT lowered yield-scaled emissions in both experiments, but these treatment effects were largely driven by an increase in grain yield. Conclusions In dryland Mediterranean agroecosystems the combination of NT and medium rates of either mineral or organic N fertilization can be an appropriate strategy for optimizing CO2 and CH4 emissions and grain yield.
Descripción20 Pags.- 7 Figs.- 5 Tabls. The definitive version is available at: http://link.springer.com/journal/11104
Versión del editorhttp://dx.doi.org/10.1007/s11104-014-2115-8
URIhttp://hdl.handle.net/10261/100970
DOI10.1007/s11104-014-2115-8
ISSN0032-079X
E-ISSN1573-5036
Aparece en las colecciones: (EEAD) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
AlvaroJ_PlantSoil_2014.pdf972,11 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 



NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.