Assessing the Impact of Climate Change on Rainfall Distribution on Cassava Yield in Coastal and Upland Areas of Akwa Ibom State, Nigeria

Assessing the Impact of Climate Change on Rainfall Distribution on Cassava Yield in Coastal and Upland Areas of Akwa Ibom State, Nigeria

The effect of rainfall variability on cassava yield in selected coastal and upland areas of Nigeria’s Akwa Ibom State was investigated in this report. Climate change is described as a shift in the distribution of weather patterns (such as rainfall and temperature) over time, usually a decade. The Nigeria Meteorological Agency provided thirty years of daily rainfall data (1989–2018). Cassava yield data was gathered from the Akwa Ibom State Ministry of Agriculture in Uyo from 1989 to 2018. The average annual rainfall and cassava yield were determined using descriptive statistics. The relationship between rainfall and cassava yield was studied using time series analysis. With Eket – r2 = 0.6631, the result suggested an improvement in rainfall trends in all regions. Oron has a correlation coefficient of 0.5329, Uyo has a correlation coefficient of 0.4215, and Ikot Ekpene has a correlation coefficient of 0.4042. Cassava yield increased in Uyo and Ikot Ekpene, with r2 = 0.2436 and 0.4397, respectively, but decreased in Eket and Oron, with r2 = 0.0611 and 0.1159, respectively. The findings showed a substantial increase (positive trends) in rainfall trends across the entire state of Akwa Ibom. Due to the continuous rise in rainfall as a result of climate change, this indicates that a high yield of cassava may be achieved only in the upland areas of Akwa Ibom State.

Author (s) Details

A. I. Isaiah
Department of Soil Science, Faculty of Agriculture, Ahmadu Bello University, Zaria, Nigeria.

Dr. A. M. Yamusa
Meteorological Unit, Department of Soil Science, Institute for Agricultural Research, Ahmadu Bello University, Zaria, Nigeria.

Professor A. C. Odunze
Meteorological Unit, Department of Soil Science, Institute for Agricultural Research, Ahmadu Bello University, Zaria, Nigeria.

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