University of Tasmania
129107 - Understanding the Spatially Variable Effects of Climate Change on Rice Yield for Three Ecotypes in Bangladesh.pdf (6.96 MB)

Understanding the spatially variable effects of climate change on rice yield for three ecotypes in Bangladesh, 1981-2010

Download (6.96 MB)
journal contribution
posted on 2023-05-19, 22:24 authored by Iffat Ara, Lewis, M, Ostendorf, B
Climate change will impact on rice food security in many parts of the world, including Bangladesh. Little attention has been given to understanding the impact of climate on rice yield for three main ecotypes (Aus, Aman, and Boro) in different areas of the country. The aim of this paper was to analyse the spatiotemporal dynamics of rice yield and climatic variables and the spatially variable climate effects on rice yield for these ecotypes in Bangladesh during 1981-2010 by employing linear mixed models and generalized linear models. The results demonstrated the substantial spatiotemporal variations of rice yield for all ecotypes across the country. Rice yield for ecotypes was more susceptible to temperature changes than rainfall effects. Modelling of a 1°C temperature increase in the country showed strong regional differences in rice yield for these ecotypes. The study concludes that future temperature changes are likely to change regional rice yield for all ecotypes and hence impact food security. The results have important consequences for food security by indicating the need for appropriate region-specific adaptation measures to reduce rice yield variability in the future. The results show the need to consider spatial differences for policy development to improve food security in Bangladesh.


Publication title

Advances in Agriculture



Article number









Tasmanian Institute of Agriculture (TIA)


Hindawi Publishing Corporation

Place of publication

United States

Rights statement

Copyright 2017 Iffat Ara et al. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0)

Repository Status

  • Open

Socio-economic Objectives

Assessment and management of Antarctic and Southern Ocean ecosystems; Ecosystem adaptation to climate change; Understanding climate change not elsewhere classified