Main Article Content

Analysis of rainfall trend in Ethiopia


S Admassu
IAH Seid

Abstract

Agricultural production in Ethiopia is predominantly rain fed. Variation of rainfa ll in space and time affects the agricultural production system in the country. This needs a close study on rainfall variation. Rainfall variation, called trend, has been assessed for total annual, Kiremt (June-September) and Belg (February-May) rainfall, using I 0 selected stations over the period of 1973-2002 in Ethiopia. Trend-free Pre-whitening Mann-Kendall statistical test at the stations show that Belg rainfall totals do not show significant trend while Kiremt rainfall totals on Gore (-7. 75mm/year) and J ijiga (-5.87mm/year), Sep-Nov total rainfall on N.Borena  (-.,J.25mm/year) and annual rainfall totals on Gore (-I 2.2mm/year) and N.Borena {-11.11 mm/year) show significant decreasing trend during the period. It is recommended to extend the study on more number of stations to conclude at regional level.

Key words: Trend, Mann Kendall, Kiremt, Belg, Annual


Journal Identifiers


eISSN: 2312-6019
print ISSN: 1816-3378