Jan 24, 2015 - The study assessed household vulnerability to climate change and its effect on yam and cassava production in Oyo state, Nigeria. Primary and ...
Effect of climate change on food crop production and vulnerability assessment in Oyo State S. A Adewuyi*, B. Folorunso, L.O Okojie and D. Akerele Department of Agricultural Economics and Farm Management, Federal University of Agriculture, Abeokuta, Nigeria. Received 9 May, 2013; Accepted 25, November, 2014
The study assessed household vulnerability to climate change and its effect on yam and cassava production in Oyo state, Nigeria. Primary and secondary data were used for the study. Data on yam and cassava yield between 1990 and 2009 were obtained from the Oyo State Agricultural Development Programme (ADP) while data on climate variables between 1976 and 2010 were obtained from the Nigeria Institute of Meteorology, Oshodi. Primary data on the components of vulnerability that is adaptive capacity, sensitivity and exposure were also obtained from cassava and yam farmers using structured questionnaire to assess their vulnerability to climate change. Multistage sampling technique was employed to select 120 respondents across the three agro-ecological zones of the study area. This was done by purposively selecting five farm villages in each of the three agro-ecological zones in the study area and randomly selecting eight farmers from each of the villages. Trend, regression and principal component analytical tools were used to analyze data collected. The integrated vulnerability assessment approach was adopted using the vulnerability indicator. The result showed that the mean annual temperature and mean annual sunshine hour have been increasing by an average of 0.012oC (p
