Global Advanced Research Journal of Agricultural Science (GARJAS) ISSN: 2315-5094
August 2015 Vol. 4(8): pp. 439-461
Copyright © 2015 Global Advanced Research Journals

 

Full Length Research Paper

An over view of climate change in the southwestern part of Bangladesh in Jessore and Sathkhira districts and rice Yield response; an analysis of aggregate level data 

Md. Humayun Kabir 

 

International Islamic University Malaysia Kulliyyah of Architecture and Environment Design (KAED)

Department of Urban and regional Planning

*Corresponding Author’s Email: hksmmm@gmail.com

Accepted 16 August, 2015

 

Abstract

This study examines the association between the yield of three main rice crops (e.g., Aus, Aman and Boro) and three main climate variables (e.g., extreme temperature, least temperature and rainfall) for Bangladesh especially Jessore and Sathkhira districts. We use time series data for the 1972–2009 period at an aggregate level to evaluate the association between climate variables and rice harvest using both the normal least rectangles and median (quartile) regression approaches. The findings of this study approve that climate variables have had important belongings on rice yields but that these properties vary among three rice crops. Extreme temperature is statistically important for all rice crops with optimistic belongings on Aus and Aman rice and contrary belongings on Boro rice. Lowest temperature has a statistically important bad effect on Aman rice and a significantly confident effect on Boro rice. Finally, rainwater has a statistically important result on Aus and Aman rice. However, the effects of extreme temperature and least temperature are more distinct compared with that of rainfall. Given these special effects of temperature on rice crops and swelling climate change susceptibilities, policy makers should fund the study and progress of temperature lenient rice varieties, mainly for Aman and Boro rice.

Keywords:  Temperature, Aggregate, Aus, Aman , Boro.

 


 

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