Climate Change Dynamics and Imperatives for Food Security in Nigeria  

Oleh:

Onafeso, Olumide D. ; Akanni, Cornelius O. ; Badejo, Bamidele A.

Jenis: Article from Journal - ilmiah nasional - terakreditasi DIKTI
Dalam koleksi: Indonesian Journal of Geography vol. 47 no. 2 (Jun. 2015), page 151-159.
Topik: Climate change; Food security; Africa
Fulltext: 9254-17133-1-SM.pdf (235.49KB)

Isi artikel

Decadal variability in African rainfall is projected from General Circulation Models (GCMs) to continue un-der elevated greenhouse gas scenarios. Effects on rain intensity, spatio-temporal variability of growing seasons, flooding, drought, and land-use change impose feedbacks at regional-local scales. Yet, empirical knowledge of associated impacts on crop yield is limited; thus, we examined the imperatives for food security in Nigeria. Bivariate correlation and mul-tiple regression suggests impending drought in the northern region where livestock farming is predominant. Relative contributions of climate independent variables in determining crop yield by backward selection procedures with step-wise approach indexed the impacts of annual climate variability by a parameter computed as annual yield minus mean annual yield divided by the standard deviation. Results show Z-distribution approximately 5 to + 5, when < 3 or > 3 indicate impacts significant at 95% confidence levels. In conclusion, we established the interwoven relationship between climatic change and food security.

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