Effects of Extreme Flooding on Output of Selected Crops in Anambra State, Nigeria from 1990 to 2019
Asian Journal of Advances in Agricultural Research,
The study has analyzed effects of extreme flooding on output of selected root and tuber crops in Anambra State, Nigeria for the period of 1990-2019using secondary data collected on cassava, yam and sweet potato output from the agricultural production survey of Anambra State Agricultural Development Programme and annual averages of rainfall from the Nigeria Meteorological Agency inAwka station. Data collected were analysed by using multivariate simple linear regression and trend analysisin linear trend analysis and line graph. Results respectively showed an increasing trend in output of cassava, yam and sweet potato within the researched period with a depression in output of cassava and yam in 2014 and 2015. The regression results showed that coefficients of determination (R2) values of yam output were (0.620), cassava output (0.560) and sweet potato (0.580), which implied that 63%, 56% and 58% changed in output of roots and tuber crops accounted for rainfall within the research period. Specifically, rainfall (0.002) was positively related to yam output at (p<0.05). This implied excessive amount of rainfall resulting flooding, which influenced the output of production of yam. Rainfall (-0.015) and (-0.003) were negatively related to output of cassava and sweet potato at 5% probability level, which indicated extreme rainfall translating into flooding, which adversely affected the output of cassava and sweet potato in this area. The result of the tested hypothesis showed that extreme flooding had significant negative effects on output of roots and tuber crops in the researched area. Based on results, it was concluded that extreme flooding deleteriously affected output of root and tuber crops in Anambra state, Nigeria. Therefore, farmers were advised to change their crop production technologies including time of planting to suit changes in rainfall pattern in order to avert their adverse effects.
- roots and rainfall
How to Cite
IPCC. Climate change: the physical science basis contributions of working group I to the forth assessment report of the IPCC edited by Solomon S, Chen Z, Avery KB, Miller HL. Cambridge and New York. Cambridge University Press; 2007.
Hulme M, Barrow EM, Arnell NW, HarrisonPA, John TC and DowingTA. Relative impact of human induced climate change and natural climate variability. Nature. 1999;397-691.
Carnell RC, Senior CA. Changes in mid-latitude variability due to increasing gases and sulphateaerosole, Climate Dynamics 1998;14:369-383.
Rao CS. Environmental pollution control engineering. New age International Publication; 2006.
Onwubiya EA, Ajanni EN. Strategies for improving production and processing of cassava among women famers in Anambra state, Nigeria. Universal Journal of Education and General Studies. 2012;1(16): 169-173.
Ezenwa. Enhancing production and processing of cassava among farmers in Ihiala local government area of anambra state. B.Sc project, Department of Agricultural Extension, University of Nigeria Nsukka. 2010;2-3.
Ayandele A, Odekunle TO, Orinmogunje OI, Adeoye NO. Impact of climate variability on tuber crop in Guinea Savanna part of Nigeria: a GIS approach. Journal of Geography and Geology. 2010;2(1):27-35.
Verhagen A. Climate change and its repercussions for the potato supply chain. Potato Research. 2008;52: 224-267.
Haverkort AJ, Verhagen A. Climate change and its implications for the economics of potato supply chain. Potato Research. 2012;52:123-137.
Okoro-Eke ON, Njoku DN, AMadu, Ezulike TO. Impact of global warming and crop factors on the growth and productivity of four cassava cultivars in Nigeria. Journal of Scientific Research and Essay. 2009;4(10):955-960.
Olannewaju RM. Effect of climate change on yam production in kwara State, Nigeria. Environmental Issues. 2010;3(1):30-34.
Afiesimama EA, Ojo SO, Gbuyiro SO. The diagnosis of the climate trends over Nigeria in the last half century of this millennium. A paper presented at the regional conference on climate change held at Lagos by Nigeria Meteorological Society; 1999.
NPC. National Population Commission report of 2019 population projections. Abuja, Nigeria; 2019.
Helwig NE. Multivariate linear regression; 2017.
Available:http://users.stat.umn.edu/~helwig/notes/mvlr-Notes.pdf. Retrieved on 19/12/2017
Glen S. Statistical concepts explained visually; 2016.
Available:https://www.statisticshowto.datasciencecentral.com/pillais-trace/, Accessed 6/6/2017.
Ayandele A, Odekunle TO, Orinmogunje OI, Adeoye N O. Inter-annual climate variability and crop yields anomalies in middle belt of Nigeria, Advances in Natural and Applied Sciences. 2009;3(3):452-465.
Awoke MU, Nte IN. Climate change and effects on selected crops in EbonyiState, Nigeria. International Journal of Agricultural Economics and Management. Research Indian Publication. Delhi India; 2013.
Ezekiel AA, Olaawunyi SO, Ganiyu MO, Ojedokun IK, Adeyemo SA. Effects of climate change on cassava productivity in Illesa-east local government area, Osun state, Nigeria. British Journal of Arts and Social Science. 2012;10(2):153-162.
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