The Investigation of Climate Change Effect on Agricultural Production Risk; the Case of Wheat in Fars Province

Document Type : Research Paper

Authors

1 Department of Agricultural Economics, Agricultural Faculty of Tarbiat Modares University, Tehran, Iran

2 Department of Agricultural Economics, Tarbiat Modares University

3 Associate Professor/ Tarbiat Modares University

Abstract

Introduction
Wheat is one of the main strategic agricultural product. It is common human food source in developing countries such as Iran. Therefore, wheat production has indispensable role on food security in Iran. More than half cereals’ farms have been dedicated to wheat farming in Iran. This study intents to investigate the raised question “how does climate change affect wheat yield?” particularly in rain-fed wheat’s farms as a sensitive crop to climatic aspects as the study purpose.
Materials and Method
Random function of the Just and Pope (1978, 1979) base on Feasible Generalize List Square approach (FGLS) was utilized to examine the role of climatic and non-climatic factors on variance of rain-fed wheat yield in six regions including Abadeh, Eqlid, Marvdasht, Shiraz, Larestan and Lamerd through a period of 22 years (1995_2015). The data of temperature and precipitation were predicted through four-time period contains 2011-2030, 2031-2050, 2051-2070, and 2071-2090. Four scenarios including RCP 4.5 and RCP 8.5 relying on GFDL-CM3 model were developed to forecast climatic variables. Finally yield and its risk were analyzed.
Results and discussion
The results demonstrated precipitation as one of the most important factors with significance positive effect on rain-fed wheat’s yield, it predicted 1.61 percent of variation of rain-fed wheat’s yield. Moreover, the precipitation and temperature were found as reducing risk inputs on rain-fed wheat’s yield of Fars province. Findings illustrated that climate change will change temperature to be able to compensate loss due to reduced precipitation effect, because of both positive effect of temperature and precipitation.


 
Suggestion
According to study findings, some suggestions were presented to policy makers in designing mitigation and adaptation strategies for rain-fed wheat’s farmers in response to climate change. Our suggestions contain using heat resistant seed and using mechanical machines during wheat cultivation in order to cope negative effects of seed and labor on yield in recently years.
 JEL Classification: C23, C53, C87, Q57

Keywords

References

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Agricultural Economics
Volume 13, Issue 3 - Serial Number 3
December 2019
Pages 87-110

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