El Niño influence on potential maize yield in Iberian Peninsula

Capa Morocho, M.; Rodríguez Fonseca, Belén y Ruiz Ramos, Margarita (2015). El Niño influence on potential maize yield in Iberian Peninsula. "International Journal of Climatology", v. 36 (n. 3); pp. 1313-1330. ISSN 0899-8418. https://doi.org/10.1002/joc.4426.

Descripción

Título: El Niño influence on potential maize yield in Iberian Peninsula
Autor/es:
  • Capa Morocho, M.
  • Rodríguez Fonseca, Belén
  • Ruiz Ramos, Margarita
Tipo de Documento: Artículo
Título de Revista/Publicación: International Journal of Climatology
Fecha: Marzo 2015
Volumen: 36
Materias:
Escuela: E.T.S.I. Agrónomos (UPM) [antigua denominación]
Departamento: Producción Agraria
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

El Niño phenomenon is the leading mode of sea surface temperature interannual variability. It can affect weather patterns worldwide and therefore crop production. Crop models are useful tools for impact and predictability applications, allowing to obtain long time series of potential and attainable crop yield, unlike to available time series of observed crop yield for many countries. Using this tool, crop yield variability in a location of Iberia Peninsula (IP) has been previously studied, finding predictability from Pacific El Niño conditions. Nevertheless, the work has not been done for an extended area. The present work carries out an analysis of maize yield variability in IP for the whole twenty century, using a calibrated crop model at five contrasting Spanish locations and reanalyses climate datasets to obtain long time series of potential yield. The study tests the use of reanalysis data for obtaining only climate dependent time series of crop yield for the whole region, and to use these yield to analyze the influences of oceanic and atmospheric patterns. The results show a good reliability of reanalysis data. The spatial distribution of the leading principal component of yield variability shows a similar behaviour over all the studied locations in the IP. The strong linear correlation between El Niño index and yield is remarkable, being this relation non-stationary on time, although the air temperature-yield relationship remains on time, being the highest influences during grain filling period. Regarding atmospheric patterns, the summer Scandinavian pattern has significant influence on yield in IP. The potential usefulness of this study is to apply the relationships found to improving crop forecasting in IP.

Proyectos asociados

TipoCódigoAcrónimoResponsableTítulo
Gobierno de EspañaCGL2012-38923-C02-02Sin especificarSin especificarSin especificar
Gobierno de EspañaCGL2012-38923-C02-01Sin especificarSin especificarSin especificar

Más información

ID de Registro: 40664
Identificador DC: http://oa.upm.es/40664/
Identificador OAI: oai:oa.upm.es:40664
Identificador DOI: 10.1002/joc.4426
URL Oficial: http://onlinelibrary.wiley.com/doi/10.1002/joc.4426/full
Depositado por: Memoria Investigacion
Depositado el: 15 Jun 2016 15:09
Ultima Modificación: 31 Mar 2017 22:30
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