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Academic Research Journal of
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Academic Research Journal of Agricultural Science and Research Vol. 5(7), pp. 509-513. November, 2017. ISSN: 2360-7874 DOI: 10.14662/ARJASR2017.079 Full Length Research Trend analysis of seasonal rainfall and annual temperature in semi-arid Central lowland of Oromia state, Ethiopia
Agere Lupi Edao
Ethiopian Institute of Agricultural Research, Melkassa Agricultural Research Center, Adama, Oromia state, Ethiopia P.o Box 436. E-mail: agere97@gmail.com
Accepted 19 October 2017
Ethiopia is located in a tropical region where differences of temperature are strongly modulated by elevation where it comprises of 61% of lowland mass The past climate of the three study areas found in the Central lowland of Oromia of Ethiopia was used for ground observation data for the trend detections that were recorded at Melkassa (1977-2013), Adam Tulu (1973-2012), and Mieso (1973-2012) meteorological stations. The seasonal rainfall and annual minimum and maximum temperature data of the study areas were assessed using the Mann–Kendall trend test and Sen’s slope estimator trend. The result of Sen.’s slope estimation also indicates that, the trend of the seasonal rainfall and annual maximum and minimum temperature under Mieso, Melkassa and Ademi Tulu condition increasing trend whereas Man-Kendall trend estimation indicates that the seasonal rainfall and annual maximum and minimum temperature shows a positive trend at the study areas expect negative trend of minimum temperature for Melkassa and Ademi Tulu. The high variability of climate aspects in the semi-arid central lowland of Oromia, which signals the likely impact of this variability on crop production risk study areas.
Keywords; Trends, seasonal rainfall, annual maximum and minimum temperature
How to cite this article: Edao AL (2017). Trend analysis of seasonal rainfall and annual temperature in semi-arid Central lowland of Oromia state, Ethiopia. Acad. Res. J. Agri. Sci. Res. Vol. 5(7), pp. 509-513
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