Assessing Impacts of Climatic Variations on Foodgrain Production in Bangladesh

Karim, Zahurul; Hussain, Sk. Ghulam; Ahmed, Mushtaq

doi:10.1007/978-94-017-1053-4_5

Cited by 36 publications

(48 citation statements)

References 2 publications

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“…Therefore, systematic integration of environmental and economic development is essential to overcome the challenges faced by the agricultural sectors from the climatic conditions. Simulation studies have been carried out to assess the impacts of climate change and variability on rice productivity in Bangladesh (Basak, 2009, Basak et al, 2010Mahmood et al, 2003;Mahmood, 1998;Karim et al, 1996) and some of these studies have predicted lower rice yield under different climate change scenarios. Basak (2009) and Basak et al (2010) predicted significant reduction in yield of some varieties of Boro rice due to climate change; yield reductions of over 20% and 50% have also been predicted for the years 2050 and 2070 respectively.…”

Section: Introductionmentioning

confidence: 99%

Impacts of Temperature and Carbon dioxide on Rice yield in Bangladesh

et al. 2014

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This simulation study aimed to predict the effects of potential change of temperature and carbon dioxide on winter rice (Boro rice) production in Bangladesh. We assessed the effects of temperature and carbon dioxide on yield of Boro rice using DSSAT model for six major rice growing AgroEcological Zones (AEZs). The sensitivity analysis included variation of maximum and minimum temperature at 2 0 C and 4 0 C and different levels of CO2 concentrations (50 ppm, 100 ppm and 200 ppm) above the value reported in 2005 of IPCC Fourth Assessment Report (379 ppm). The model predicted that the change of maximum temperature drastically reduced rice yield at all selected locations. The average value of yield reductions (average percentage change of rice yield for 6 locations) of Boro rice were 6% and 16% for increasing maximum temperature at 2 0 C and 4 0 C respectively. Minimum temperature had also negative impacts on Boro rice yields that reduced yield by 4% for 2 0 C and 8% for 4 0 C. However, a slight increase in rice yield due to increase in CO2 concentration could not overcome the negative effect of temperature. Such yield reductions under changing climatic conditions could significantly affect the rice production in Bangladesh in future.

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Section: Introductionmentioning

confidence: 99%

Impacts of Temperature and Carbon dioxide on Rice yield in Bangladesh

et al. 2014

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“…Simulation models, such as Crop Environment Resource Synthesis (CERES) and Decision Support System for Agro-technology Transfer (DSSAT), generally predict a reduction of yield under future climate scenarios [17][18][19]. The response is dependent on rice ecotype, with rain-fed types showing negative temperature responses and mixed results for the irrigated variety Boro [17,20,21].…”

Section: Open Accessmentioning

confidence: 99%

Spatio-temporal analysis of the impact of climate, cropping intensity and means of irrigation: an assessment on rice yield determinants in Bangladesh

2016

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Background: Rice (Oryza sativa) is the most important staple food for almost half of the global population. Improvement of rice yield is of global concern and is influenced by a wide variety of regional factors including climate and agricultural management. This research addresses the need to understand the relative influence of these factors and develop geographically explicit determinants of rice yield across Bangladesh. The specific objectives of this study were (a) to assess spatial and temporal variation in rice yield, cropping intensity and means of irrigation, and (b) to evaluate the relative importance of spatio-temporal change in climate, cropping intensity and means of irrigation on rice yield. A database on rice yield, management practices (cropping intensity and means of irrigation) and climate was collected from the Bangladesh Bureau of Statistics and Bangladesh Meteorological Department, respectively, for the years of 1981-2010. Linear mixed models were used to assess the influence of different determinants on rice yield. Results:The results indicate that irrigation, particularly groundwater irrigation, had a stronger influence on rice yield than climatic conditions and cropping intensity in Bangladesh during the study period. Temperature and rainfall showed negative impacts on yield. Rice yield also declined when cropping intensity increased. Conclusions:Both climate and groundwater extraction need to be considered in future policy development. However, the current extraction rate of groundwater may not be sustainable in the future to increase rice yield. The study concludes that spatio-temporal differences in observed yield allow interpretation of potential determinants that are important for food policy development in Bangladesh.

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“…The 1988 flood caused reduction of agricultural production by 45% (Karim et al 1996). Higher discharge and low drainage capacity, in combination with increased backwater effects, would increase the frequency of such devastating floods under climate change scenarios.…”

Section: Impact Of Flood On Crop Productionmentioning

confidence: 99%

Sustainable Agricultural Development under Climate Change in Bangladesh

Faroque

Asaduzamman²,

Hossain³

2013

J Sci Found

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Climate change is no more an environmental concern it has emerged as biggest developmental challenge for the most vulnerable Bangladesh. The whole international community is also scared of catastrophic adverse effects of future climatic changes on different spheres of man and nature, e.g. deglaciation and sea level changes, submergence of lands, nations and major coastal lowlands, atmospheric dynamics including evaporation and precipitation, global radiation balance, photosynthesis and ecological productivity, plant and animal community and many more. This paper tries to focus the adverse impacts of climatic changes on the crop production, food security, yield gap and sustainable agriculture by crop intensification and diversification. The impact of climate on agriculture could result in problems with food security and may threaten the livelihood activities upon which much of the population depends and thrives. Hilly committed research efforts showed technological progress as evidenced by release of 684 high yielding varieties of various crops and about 769 management technologies by NARS institutes, and universities. The greatest challenge for the future agriculture under climate change, we need improved and modified warning system, developed climate impact modules, build sufficient resilience of food system, comprehensive climate resilience strategies, develop database on climate. Also need top priority to mitigate the impact of climate change on agriculture through weather services, more research and extension service, agro advisories, insurance, community bank, intensify and diversify crop production system, modern high yielding varieties and management technologies for future sustainable agriculture.

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Assessing Impacts of Climatic Variations on Foodgrain Production in Bangladesh

Cited by 36 publications

References 2 publications

Impacts of Temperature and Carbon dioxide on Rice yield in Bangladesh

Impacts of Temperature and Carbon dioxide on Rice yield in Bangladesh

Spatio-temporal analysis of the impact of climate, cropping intensity and means of irrigation: an assessment on rice yield determinants in Bangladesh

Sustainable Agricultural Development under Climate Change in Bangladesh

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