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Climatic impacts on crop yield and its variability in Nepal: do they vary across seasons and altitudes?

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  • Santosh Poudel

    ()

  • Koji Kotani

    ()

Abstract

A rapid change in climate patterns potentially driven by global warming is considered to be greatest threats to agriculture. However, little is known about how the change in climate concretely affects agricultural production especially in Nepal with respect to seasons and regions of different altitudes. To examine this issue, we seek to empirically identify the impact of climatic variation on agricultural yield and its variability by utilizing the data of rice, wheat and climate variables in the central region of Nepal. The main focus is on whether the impacts vary across seasons, altitudes and the types of crops. For this purpose, we employ a stochastic production function approach by controlling a novel set of season-wise climatic and geographical variables. The result shows that an increase in the variance of both temperature and rainfall has adverse effects on crop productions in general. On the other hand, a change in the mean levels of the temperature and rainfall induces heterogeneous impacts, which can be considered beneficial, harmful or negligible, depending on the altitudes and the kinds of crops. These results imply that adaptation strategies must be tailor-made in Nepalese agriculture, considering growing seasons, altitudes and the types of crops. Copyright Springer Science+Business Media B.V. 2013

Suggested Citation

  • Santosh Poudel & Koji Kotani, 2013. "Climatic impacts on crop yield and its variability in Nepal: do they vary across seasons and altitudes?," Climatic Change, Springer, vol. 116(2), pages 327-355, January.
  • Handle: RePEc:spr:climat:v:116:y:2013:i:2:p:327-355
    DOI: 10.1007/s10584-012-0491-8
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    References listed on IDEAS

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    1. You, Liangzhi & Rosegrant, Mark W. & Fang, Cheng & Wood, Stanley, 2005. "Impact of global warming on Chinese wheat productivity:," EPTD discussion papers 143, International Food Policy Research Institute (IFPRI).
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    5. Carew, Richard & Smith, Elwin G. & Grant, Cynthia, 2009. "Factors Influencing Wheat Yield and Variability: Evidence from Manitoba, Canada," Journal of Agricultural and Applied Economics, Cambridge University Press, vol. 41(03), pages 625-639, December.
    6. Joshi, Niraj Prakash & Maharjan, Keshav Lall & Piya, Luni, 2011. "Effect of climate variables on yield of major food-crops in Nepal -A time-series analysis-," MPRA Paper 35379, University Library of Munich, Germany.
    7. Nelson, Gerald C. & Rosegrant, Mark W. & Koo, Jawoo & Robertson, Richard & Sulser, Timothy & Zhu, Tingju & Ringler, Claudia & Msangi, Siwa & Palazzo, Amanda & Batka, Miroslav & Magalhaes, Marilia & Va, 2009. "Climate change: Impact on agriculture and costs of adaptation," Food policy reports 21, International Food Policy Research Institute (IFPRI).
    8. Bruce A. McCarl & Xavier Villavicencio & Ximing Wu, 2008. "Climate Change and Future Analysis: Is Stationarity Dying?," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 90(5), pages 1241-1247.
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    Cited by:

    1. repec:hur:ijarbs:v:7:y:2017:i:7:p:331-344 is not listed on IDEAS
    2. Shreekant Gupta & Partha Sen & Suchita Srinivasan, 2014. "Impact Of Climate Change On The Indian Economy: Evidence From Food Grain Yields," Climate Change Economics (CCE), World Scientific Publishing Co. Pte. Ltd., vol. 5(02), pages 1-29.
    3. Raju Mandal & Hiranya Nath, 2017. "Climate Change and indian Agriculture: Impacts on Crop Yield," Working Papers 1705, Sam Houston State University, Department of Economics and International Business.
    4. Poudel, Mahadeb Prasad & Chen, Shwu-En & Ghimire, Raju, 2013. "Rice Yield Distribution and Risk Assessment in South Asian Countries: A Statistical Investigation," International Journal of Agricultural Management and Development (IJAMAD), Iranian Association of Agricultural Economics, vol. 3(1), March.
    5. Sangam Shrestha & Proloy Deb & Thi Bui, 2016. "Adaptation strategies for rice cultivation under climate change in Central Vietnam," Mitigation and Adaptation Strategies for Global Change, Springer, vol. 21(1), pages 15-37, January.
    6. repec:gam:jsusta:v:9:y:2017:i:4:p:612-:d:95875 is not listed on IDEAS
    7. Barnwal, Prabhat & Kotani, Koji, 2013. "Climatic impacts across agricultural crop yield distributions: An application of quantile regression on rice crops in Andhra Pradesh, India," Ecological Economics, Elsevier, vol. 87(C), pages 95-109.
    8. Sangam Shrestha & Proloy Deb & Thi Thu Trang Bui, 2016. "Adaptation strategies for rice cultivation under climate change in Central Vietnam," Mitigation and Adaptation Strategies for Global Change, Springer, vol. 21(1), pages 15-37, January.
    9. Gupta, Shreekant & Sen, Partha & Verma, Saumya, 2016. "Impact of Climate Change on Foodgrain Yields in India," CEI Working Paper Series 2015-9, Center for Economic Institutions, Institute of Economic Research, Hitotsubashi University.
    10. Chalise, Sudarshan & Naranpanawa, Athula & Bandara, Jayatilleke S. & Sarker, Tapan, 2017. "A general equilibrium assessment of climate change–induced loss of agricultural productivity in Nepal," Economic Modelling, Elsevier, vol. 62(C), pages 43-50.
    11. repec:gam:jsusta:v:9:y:2017:i:12:p:2207-:d:120912 is not listed on IDEAS

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