Available online at www.sciencedirect.com
ScienceDirect Procedia Environmental Sciences 29 (2015) 26 – 27
Agriculture and Climate Change - Adapting Crops to Increased Uncertainty (AGRI 2015)
Temperature and Precipitation Changes and Possible Threats to Crop Production in Arid, Semi-Arid and Tropical Forest Environment A. Singha, L. Billab, M. B. Sokotoc, A. Ladod, M.I. Abdoul-Azize & S. Singhf School of Biosciences, The University of Nottingham Malaysia Campus, Semenyih, 43500, Selangor, Malaysia. School of Geography, The University of Nottingham Malaysia Campus, Semenyih, 43500, Selangor, Malaysia. c Department of Crop Science, Usmanu Danfodiyo University, Sokoto, Nigeria. d Department of Agronomy, Bayero University, Kano, Nigeria. e Welthungerhilfe Niger BP 12 224 Niamey, Niger Republic. f Dept.of Obs.& Gyn., Usmanu Danfodiyo Uni.Teaching Hospital, Sokoto, Nigeria.
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Abstract Changing climate presents one of the most challenging threats to food crop production throughout the agro-ecologies. Annual food crops on which we rely most on are sensitive to temperature and precipitation change as it not only affects the temperature and moisture of the surroundings but affects the levels in soils as well. While climate change will have global impacts on crop production, regional variation will be play significant role in tackling climate change problem. This study examines 10-30 years data on the regional variation in temperature and precipitation from one location each in Arid and semi-Arid climate, one location in Dry sub-Humid climate and six locations in the Tropical Forest climate. The data collected were critically analysed using 5-10 years moving average plots, linear trend analysis and t-test using SPSS® software. Depending on the location, results showed significant (P<0.05) increase in temperature ranging from 0.015-0.045oC. Increase was mostly in the last 5-10 years compared to 1983-1990. Also, this increment was higher in semi-Arid & Dry-humid climate (0.044-0.087oC) than in Tropical rainforest where the increase was 0.015oC. No significant (P>0.05) increase in temperature was observed in the Arid climate in the last 10 years. In tropical rainforest climate, increase in temperature (0.044oC) was higher in the metropolis area than the countryside. From the locations examined in this study, there was no significant change in the precipitation pattern in the last 10-30 years. Simple plots overlaying temperature changes on crop production data revealed mixed response. Groundnut (Arachis hypogea), Bambara groundnut (Vigna subterannea) and hungry rice (Digeteria exilis) showed tolerance to increased temperatures in the Semi-Arid tropics. Rice (Oryza sativa) in Tropical Malaysia showed increased in yield with temperature. What may be important to note here is the resilience of the genotypes to temperature changes so that these genotypes could be further studied for adaptation to climate change. No doubt that there is evidence of increase in temperature, regional variations will exist and will play an important role in mitigating climate change. © Published by Elsevier B.V This 2015The TheAuthors. Authors. Published by Elsevier B.V.is an open access article under the CC BY-NC-ND license © 2015 (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer-review under responsibility of the organizing committee of the Agriculture and Climate Change - Adapting Crops to Peer-review under responsibility the organizing committee of the Agriculture and Climate Change - Adapting Crops to Increased Increased Uncertainty (AGRIof2015). Uncertainty (AGRI 2015)
1878-0296 © 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer-review under responsibility of the organizing committee of the Agriculture and Climate Change - Adapting Crops to Increased Uncertainty (AGRI 2015) doi:10.1016/j.proenv.2015.07.137
A. Singh et al. / Procedia Environmental Sciences 29 (2015) 26 – 27 Keywords: Climate Change; Tempeature; Precipitation; Arid Climate; Semi-Arid Climate; Dry sub-humid climate; Tropical Forest; Crop Production
References 1. Pimental D. Climate changes and food supply. Forum for Applied Research and Public Policy 1993, 8 (4):54-60. 2. Christensen JH, B Hewitson, A Busuioc, A Chen, X Gao, I Held, R Jones, RK Kolli, WT Kwon, R Laprise, V Magaña Rueda, L Mearns, CG Menéndez, J Räisänen, A Rinke, A Sarr and P Whetton. Regional Climate Projections. In: Climate Change 2007: The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change [Solomon S, D Qin, M Manning, Z Chen, M Marquis, KB Averyt, M Tignor and HL Miller (eds.)]. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA; 2007.
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