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The Impact of Climate Modes and Precipitation on Tanzanian Maize Yield

Schlüter, Andreas; Han, Weiqing; Friedrich, Katja; Knohl, Alexander


Previous research has shown the significant impact of the two climate modes El Niño/Southern Oscillation (ENSO) and Indian Ocean Dipole (IOD) on the interannual variability of Tanzanian rainfall. However, the relationship of these modes to crop yield in a country where agriculture is predominantly rain-fed has not yet been investigated. This study analysed in three steps the impact of ENSO and IOD, as well of the regional precipitation on maize yield in the East African country Tanzania. Correlation and multiple linear regression analysis were used to investigate the relationship between monthly climate indices and precipitation and annual maize yield data. IOD was shown to have positive and mostly statistically significant correlation with precipitation throughout almost entire Tanzania during October to February. ENSO has a comparably negligible, mostly non statistically significant impact on the Tanzanian rainfall. It was indicated, that the right timing of the precipitation is crucial for a good development of maize. From January to April, crops show increased susceptibility to drought. Too early precipitation (from August to December) can lead to crop failure. ... mehr

Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung – Forschungsbereich Troposphäre (IMK-TRO)
KIT-Zentrum Klima und Umwelt (ZKU)
Publikationstyp Poster
Publikationsjahr 2015
Sprache Englisch
Identifikator KITopen-ID: 1000077206
Veranstaltung Tropentag 2015, International Research on Food Security, Natural Resource Management and Rural Development Management of Land Use Systems for Enhanced Food Security : Conflicts, Controversies and Resolutions, Berlin, Germany, 16th - 18th September 2015
Bemerkung zur Veröffentlichung Book of Abstracts : Paper 775
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