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VOL. 8, ISSUE 1 (2023)
Predicting the impact of climate variability on cassava yield in ibiono ibom local government area of Akwa ibom state, Nigeria
Authors
John O Esin, Arisabor L
Abstract
This study examined the linkages between
climate variation and cassava yield in Ibiono Ibom LGA of Akwa Ibom State. Through
the use of secondary data obtained on annual cassava yield and climate
variation drivers, such as average annual temperature, rainfall, solar
radiation and relative humidity in Ibiono Ibom LGA, the relationship between
cassava yield and climate variation was established using step-wise regression
inter-correlation model. The results revealed that average annual rainfall and
relative humidity are not strong determinants of variation in annual cassava
yield in the study area, compared to variation in annual solar radiation and
temperature. The result of the analysis revealed further that average annual
temperature is more significant in explaining the variation in cassava yield
than variation in annual solar radiation (R2=.71% for temperature
and 56% for solar radiation). The direction and magnitude of influence of these
variables indicate that a unit increase in average temperature above normal
will result in 27% decrease in cassava yield, while a unit decrease in average
solar radiation above normal will also results in 44% decrease in annual
cassava yield. These buttress the significant influence of both temperature and
solar radiation in determining cassava yield. The study recommends the need for
researches on climate-crop relationships under changing climate scenario to be
carried out as climate change affects resources which are vital for human
livelihood systems. The anticipation of how future climate variability will
affect crop production and its bio-physical systems is an important issue to
also consider.
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Pages:39-43
How to cite this article:
John O Esin, Arisabor L "Predicting the impact of climate variability on cassava yield in ibiono ibom local government area of Akwa ibom state, Nigeria". International Journal of Advanced Scientific Research, Vol 8, Issue 1, 2023, Pages 39-43
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