Impact of Climate Variability on Cool Weather Crop Yield in Ethiopia

الموضوعات :

آرگا آدم ¹ (PhD Candidate in Haramaya University of Ethiopia and Makerere University of Uganda)
بلای کاسا ² (Professor Pan African University, Africa Union, Addis Ababa, Ethiopia)
دگی گوشو ³ (PhD, Haramaya University, College of Agriculture and Environmental Science: School of Agricultural Economics and Agri-business: Department of Agricultural Economics, Ethiopia)
ماجالیوا موانجالو ⁴ (PhD, Makerere University, College of Agriculture and Environmental Science. School of Forestry, Environmental and Geographical Science: Department of Geography, Geo Informatics and Climatic Sciences, Uganda)

تاريخ الإرسال : 07 الإثنين , صفر, 1438 تاريخ التأكيد : 03 الأحد , ربيع الثاني, 1438 تاريخ الإصدار : 13 الجمعة , ربيع الأول, 1439

الکلمات المفتاحية: temperature, Smallholder, Technical efficiency, rainfall, Climate Variability, crop yield,

ملخص المقالة :

The research examined effect of climate variability on yield of the two dominant cool weather cereals (wheat and barley) in central highland and Arssi grain plough farming systems of Ethiopia using eight round unbalanced panel data (1994-2014). The stochastic frontier model result revealed that production inputs for producing wheat and barley in the two farming system had significant effect. Crop season rainfall increment had negative and significant effect on technical efficiency of smallholders to produce wheat as to the model result. Technical efficiency of two crops responded differently for cropping season rainfall variability, in which wheat had negative and significant interaction with it while barley had positive. Given this, cropping season temperature had significant and positive effect on technical efficiency of both wheat and barley. Having this into account, yield of the two crops responded similarly for changes in production inputs like working capital, human labor and fertilizer. In general, rainfall inconsistency at the different stages of the production period had strong effect on yield of the two crops. Given this, the study forwarded an assignment to plant scientists in order to have further investigation on how the two crops responded differently to temperature variability.

المصادر:

Ajay, K., & Pritee, S. (2013). Impact of climate variation on agricultural productivity and food security in Rural India. Discussion Paper No. 2013-43:http://www.economicsejournal.org/economics/discussionpapers/

Akinseye, F.M., Ajayi, V.O., & Oladitan, T.O. (2013). Assessing the impacts of climate variability on crop yield over Sudano- Sahelian zone in Nigeria. International Journal of Agricultural Science,1(7), 91-98. Retrieved from http://www.accessinterjournals.org/aijas

Amikuzuno, J., & Donkoh, S.A. (2012). Climate variability and yields of major staple food crops in Northern Ghana: Tamale, Ghana. African Crop Science Journal, 20 (2), 349 – 360.

 Asha, L.K.V., Gopinath, M., & Bha, A.R.S. (2012). Impact of climate change on rain-fed agriculture in India. International Journal of Environmental Science and Development, 3(4), 368-371.

Baltagi, B. H. (2008). Econometrics. 4^th Edition. Springer-Verlag Berlin Heidelberg: Syracuse University. USA.

Battesse, G.E., & Coelli, T.J. (1992). Frontier Production Functions, Technical Efficiency and Panel Data: With Application to Paddy Farmers in India. The Journal of Productivity Analysis, 3: 153-169

Corinne,V., Jere, L. G., Christian, J., Robert, Q., & Rigoberto, E. (2004). Coping and adapting to climate variability: The Role of Assets, Networks, Knowledge and Institutions. http://citeseerx.ist.psu.edu/ viewdoc/download; jsessionid= 1255C45E22E18E1CBE48CDC283BE36AF?doi=10.1.1.201.7357&rep=rep1&type=pdf

Cruz, R.V., Harasawa, H., Lal, M., Wu, S., Anokhin, Y., Punsalmaa, B., Honda, Y., Jafari, M., Li, C., & Huu, N. (2007). Asia: Climate Change 2007: Working Group II: Impacts, Adaptation and Vulnerability. IPCC (Inter-governmental Panel on Climate Change) Contribution of Working Group II to the Fourth Assessment Report.https://www.ipcc.ch/publications _and_data/ar4/wg2/en/ch10.html

CSA (Central Statistics Agency) (2010). Agricultural sample survey 2009/10 (2002 e.c.) Volume VII Report on Crop and livestock product utilization (private peasant holdings, meher season. Statistical bulletin 468 Addis Ababa, Ethiopia.

Dercon, S., & Hoddinott, J. (2011). The Ethiopian Rural household surveys 1989-2009:  Introduction. International Food Policy Research Institute. Addis Ababa: Ethiopia.

Dejene A., & Yilma S. (2003). Causes and variability of Ethiopian agriculture: modeling the relative importance of environment factors, external shocks, and state policies 1980–1997. Regional and Local Development Studies (RLDS), Addis Ababa University, Ethiopia

Ehsan, N., Mohammad, B., Mohammad, R. J., Paul, S., & Alireza, F. (2012). Agro-ecological zoning for wheat (Triticum aestivum), sugar beet (Beta vulgaris) and corn (Zea mays) on the Mashhad plain, Khorasan Razavi Province. The Egyptian Journal of Remote Sensing and Space Sciences, 15, 99–112.

Elodie, B. (2012). The impact of climate change on crop yields in Sub-Saharan Africa. American Journal of Climate Change, 1, 1-13

FAO (Food and Agriculture Organization) (2008). The state of food insecurity in the world. Food and Agriculture Organization of the United Nations, Rome, Italy.

Geethalakshmi, V., Lakshmanan, A., Rajalakshmi, D., Jagannathan, R., Sridhar, G., Ramara, Bhuvaneswari, A. P., Gurusamy, K. L., & Anbhazhagan, R. (2011). Climate change impact assessment and adaptation strategies to sustain rice production in cauvery basin of tamil nadu. Current Science, 101(03), 342-347.

Getnet, A. Z., & Mehrab, M. (2010). Implications of land policies for rural-urban linkages and rural transformation in Ethiopia. ESSP II Working Paper 15. Development Strategy and Governance Division, IFPRI Ethiopia Strategy Support Program (ESSP), Ethiopia.

Govinda, B. (2013). Effect of precipitation and temperature variation on the yield of major cereals in Dadeldhura District of Far Western Development Region, Nepal. International Journal of Plant, Animal and Environmental Science, 3 (1).

Gupta, S., Sen, P., & Srinivasan, S. (2012). Impact of climate change on Indian economy: Evidence from food grain yields. Centre for Development Economics Working Paper 218, New Delhi.

IPCC (Intergovernmental Panel Climate Change) (2007). Agriculture in climate change 2007: Mitigation. Working Group III Contribution to the Fourth Assessment Report of the IPCC. Cambridge: Cambridge University Press

Jaiswal, J.P. (2009). Climatic requirement for Wheat- temperature. Retrieved from http://agropedia.iitk.ac.in/content/ climatic -requirement-wheat-temperature

Joshi, N., Maharjan, P., Keshav, L., & Piya, L. (2011). Effect of Climate Variables on Yield of Major Food-crops in Nepal: A Time-series Analysis. Journal of Contemporary India Studies,1:19-26

Kettlewell, P. S., Sothern, R. B., & Koukkari, W. L. (1999). UK wheat quality and economic value are dependent on the North Atlantic oscillation. Journal of Cereal Science, 29, 205–209.

Lobell, D.B., Burke, M.B., Tebaldi, C., Mastrandrea, M.D., Falcon, W.P., & Naylor, R. L. (2008). Prioritizing climate change adaptation needs for food security in 2030. Science, 319, 607–610

Lott, N., Ross, T., Smith, A., Houston, T., & Shein, K. (2011). Billion dollar U.S. Weather disasters, 1980 - 2010. National Climatic Data Center, Asheville, NC, USA. Retrieved from http://www.ncdc.noaa.gov/oa/reports/billionz.html

Morton, J. (2007). The impact of climate change on smallholder and subsistence agriculture. Proceedings of the National Academy of Sciences, USA 2007;104:19680-19685.

Nastis, S.A., Michailidis, A., & Chatzitheodoridis, F. (2012). Climate change and agricultural productivity. African Journal of Agricultural Research, 7 (35), 4885-4893.

Samarah, N.H., Alqudah, A.M., Amayreh, J.A., & McAndrews, G.M. (2009). The effect of late-terminal drought stress on yield components of four barley cultivars. Journal of Agronomy and Crop Science, 195 (6), 427-441

Sara, L. (2012). Climate change, weather variability and food consumption: A multidisciplinary study of Rural Uganda. Catholic University of the Sacred Heart. Via Emilia Parmense 84, 29122 Piacenza, Italy.

Schlenker, W., & Michael, J. R. (2009). Nonlinear temperature effects indicate severe damages to U.S. crop yields under climate change. Proceedings of the National Academy of Sciences, 106 (37),15594–15598.

Slater, R., Peskett, L., Ludi, E., & Brown, D. (2007). Climate change, agricultural policy and poverty reduction; how much do we know? Natural Resource Perspectives, 109.

Wolfram, S., & David, B. L. (2010). Robust negative impacts of climate change on African agriculture. Environmental Research Letters, 5 (1): IOP Publishing: http://iopscience.iop.org/1748-9326/5/1/014010

Wollenweber, B., Porter, J. R., & Schellberg, J. (2003). Lack of interaction between extreme high-temperature events at vegetative and reproductive growth stages in wheat. Journal of Agronomy and Crop Science, 189, 142–150. (doi:10.1046/j.1439-037X.2003.00025.x) World Bank, 2004. Memorandum May 24.

Zerihun, G. (2012). An analysis of the impacts of climate change on crop yield and yield variability in Ethiopia. PhD Dissertation: Graduate School of Social Sciences: Department of Economics and Management. University of Trento: Italy