Impact of Climate Change on Cassava Yield in Nigeria: An Autoregressive Distributed Lag Bound Approach

Casmir Ndukaku Anyaegbu, Kingsley Ezechukwu Okpara (), Wirach Taweepreda, David Akeju, Kuaanan Techato, Robert Ugochukwu Onyeneke, Saran Poshyachinda and Siwatt Pongpiachan
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Casmir Ndukaku Anyaegbu: Environmental Management Program, Faculty of Environmental Management (FEM), Prince of Songkla University (PSU), Hat Yai 90110, Thailand
Kingsley Ezechukwu Okpara: Environmental Management Program, Faculty of Environmental Management (FEM), Prince of Songkla University (PSU), Hat Yai 90110, Thailand
Wirach Taweepreda: Polymer Science Program, Division of Physical Science, Faculty of Science, Prince of Songkla University (PSU), Hat Yai 90110, Thailand
David Akeju: Department of Sociology, University of Lagos, Akoka-Yaba, Lagos 100213, Nigeria
Kuaanan Techato: Program of Sustainable Energy Management, Faculty of Environmental Management (FEM), Prince of Songkla University (PSU), Hat Yai 90110, Thailand
Robert Ugochukwu Onyeneke: Department of Agriculture, Alex Ekwueme Federal University Ndufu-Alike, Ikwo 482131, Nigeria
Saran Poshyachinda: National Astronomical Research Institute of Thailand (Public Organization), 260 Moo 4, T. Donkaew A. Mae Rim, Chiang Mai 50180, Thailand
Siwatt Pongpiachan: NIDA Center for Research & Development of Disaster Prevention & Management, School of Social and Environmental Development, National Institute of Development Administration (NIDA), 148 Moo 3, Sereethai Road, Klong-Chan, Bangkapi, Bangkok 10240, Thailand

Agriculture, 2022, vol. 13, issue 1, 1-14

Abstract: Across the globe, climate change is threatening the environment, crop yield and food security. The key to ensuring a sustainable environment, crop yield increase and food security is to identify the long-term significant impact of climate change and the means of reducing the effect. This study examined the impacts of climate change on cassava yield in Nigeria. Data were sourced from the Climate Change Knowledge Portal and the Food and Agricultural Organization of the United Nations spanning from 1990 to 2019. The impact of climate change was analyzed using Autoregressive Distributed Lag Bound approach, Error Correction Model and Augmented Dickey–Fuller and Phillips–Perron tests for stationarity test. The model was subjected to diagnostic tests such as stability tests, normality tests, serial correlation tests and heteroscedasticity tests. With the exception of temperature, the study revealed that arable land, rainfall and greenhouse gases such as C 2 O, nitrous oxide and methane had a long-term significant impact on cassava yield in Nigeria. The study also noted that methane causes long-term significant damage to cassava yield more than any other greenhouse gas and climatic variables in the study. We recommended policies and programs that facilitate the uptake of climate-smart agriculture that centers on greenhouse gas emission reduction and on crop improvement research by breeding crop varieties that will be resilient to climate shocks.

Keywords: ARDL; cassava yield; climate change; co-integration; ECM; greenhouse gases (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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