Título

Regional analysis of climate variability at three time scales and its effect on rainfed maize production in the Upper Lerma River Basin, Mexico

Autor

CARLOS ALBERTO MASTACHI LOZA

ROCIO BECERRIL PIÑA

MIGUEL ANGEL GOMEZ ALBORES

CARLOS DIAZ DELGADO

ALEJANDRO TONATIUH ROMERO CONTRERAS

JUAN ANTONIO GARCIA ARAGON

IVONNE VIZCARRA BORDI

Nivel de Acceso

Acceso Abierto

Licencia

http://creativecommons.org/licenses/by-nc-nd/4.0

Materias

climate variability - ([0167-8809]) lerma river basin - ([0167-8809]) rainfed maize - ([0167-8809]) seasonal 31 trend analysis - ([0167-8809]) agricultural adaptation - ([0167-8809]) CIENCIAS FÍSICO MATEMÁTICAS Y CIENCIAS DE LA TIERRA - (CTI)

Resumen o descripción

Rainy season use to be from May to September and actually is from June to September. Rainy season use to be from May to September and actually is from June to September. In the region, the most determinant factor for maize crop losses is the water deficit.

This study explored climate variability in the Upper Lerma River Basin, State of Mexico, Mexico, at three timescales: annual (1960–2010), monthly (1980–2010) and seasonal (1980–2010). The effects of monthly and seasonal (2003–2010) variability on rainfed maize crops were also evaluated. The variables of rainfall, maximum temperature, minimum temperature and number of hailstorms were interpolated to generate monthly spatial-temporal series. Over a period of 51 years, the climate of the region shows an accumulative annual increase of 131 mm in rainfall and an increase of 0.8 and 0.74 °C in maximum and minimum temperature, respectively. In conclusion, significant changes in the climate variables were found at the three analyzed timescales. Seasonal climate changes were found to coincide with the most vulnerable stage or flowering period of maize; particularly, a shift in the rainfall pattern generates a water deficit that impacts production yield. Hailstorms have increased in frequency, yet their phase shift results in a lesser impact to maize during its most critical stage of development.

This study was financed by the Basic Science research project, SEP-CONACYT “Mesoamerican Corn and Scenarios for Local development (El maíz473 mesoamericano y sus escenarios de desarrollo local), No. 130947. The authors also wish to thank the two anonymous reviewers and their comments for improving and restructuring the manuscript in order to highlight the results of this research.

Editor

Elsevier

Fecha de publicación

11 de abril de 2016

Tipo de publicación

Artículo

Recurso de información

http://hdl.handle.net/20.500.11799/65699

Fuente

0167-8809

Idioma

Inglés

Audiencia

Estudiantes

Investigadores

Repositorio Orígen

REPOSITORIO INSTITUCIONAL DE LA UAEM

Descargas

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