Analysis of Climate Change Impact on Yam Production in Nigeria

Adedolapo Kemi Ajala, Joshua Ajetomobi and Idris kayode Ojedokun
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Adedolapo Kemi Ajala: Ladoke Akintola University of Technology, Department of Agricultural Economics, Faculty of Agricultural Sciences, , PMB 4000, Ogbomoso, Oyo State, Nigeria
Idris kayode Ojedokun: Ladoke Akintola University of Technology, Department of Agricultural Economics, Faculty of Agricultural Sciences, , PMB 4000, Ogbomoso, Oyo State, Nigeria

International Journal of Research and Scientific Innovation, 2021, vol. 8, issue 9, 143-153

Abstract: The study was designed to investigate the relationship between climate variables (rainfall and temperature) and yam production across Nigeria. The objectives of the study were to estimate the impact of climate change on yield, and net revenue of yam agriculture in Nigeria and to investigate the potential impact of climate change on yam agriculture in 2050 and 2100 using Parallel Climate Model and the Canadian climate change Model. Data for 1200 yam farming households were sourced from general household survey wave 4 and that of climate variables from 1981 to 2019 collected from Nigeria Meteorological agency. Feasible generalised least square and Ricardian regression models were used to determine the relationship between climate variables, yield and net revenue of yam agriculture. Simulated Ricardian regression models were used to investigate the potential impact of climate change on yam net revenue in 2050 and 2100. The result showed that rainfall had a positive relationship with both yield and net revenue while temperature had a negative relationship with the yield and net revenue, and the infinitesimal change in temperature reduced net revenue while the infinitesimal change in rainfall increases the net revenue. The potential impact of climate change on yam agriculture showed a detriment on the net revenue of yam agriculture by 2100.

Date: 2021
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