CR 21:165-172 (2002)  -  doi:10.3354/cr021165

Identification of empirical relationships between indices of ENSO and NAO and agricultural yields in Spain

Luis Gimeno1,*, Pedro Ribera1, Raquel Iglesias1, Laura de la Torre1, Ricardo García2, Emiliano Hernández2

1Universidad de Vigo, Facultad de Ciencias de Orense, 32004 Orense, Spain
2Universidad Complutense, Facultad de Ciencias Físicas, Ciudad Universitaria, 28040 Madrid, Spain

ABSTRACT: This study characterizes the influence of the El Niño-Southern Oscillation (ENSO) and the North Atlantic Oscillation (NAO) on the most important crops in Spain using statistical analysis of the response of historical yields to ENSO and NAO phases. The response to ENSO phases is weak, being only significant for lemon yields, whereas the response to NAO phases is stronger, being significant for lemon, wheat, rye and olive. The results could be useful for producers, allowing them to adjust crop management, and for politicians, allowing better quantification of national crops limits.

KEY WORDS: Agriculture · Spain · NAO · ENSO

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