Impacts of Temperature and Carbon dioxide on Rice yield in Bangladesh

Basak, JK; Titumir, Ram; Biswas, JK; Mohinuzzaman, Mohammad

doi:10.3329/brj.v17i1-2.20897

Cited by 14 publications

(16 citation statements)

References 2 publications

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“…These results agree with those of Mullick et al [32], who also reported decreasing trends of RSEA dry at most of the climate stations across the country during winter (December to February). Decreasing trends of RSEA dry during winter and pre-monsoon seasons were also reported by Basak et al [76] and Rahman et al [21]. Although the rainfall projections of Karim et al [74] suggest a moderate increase (~10 mm/year/season) during the dry season in northwest Bangladesh the observed past trend exposes the opposite.…”

Section: Plos Climatesupporting

confidence: 61%

“…Similar to our findings, Rimi et al [79] also reported an insignificant increasing trend of the annual maximum and minimum temperatures for the southern region (e.g., Satkhira district) over the period from 1950 to 2006. Basak et al [76] estimated an increasing trend of 0.012˚C per year for the yearly average maximum temperature and 0.015˚C per year for the yearly average minimum temperature. In contrast, our analysis of the extensive data set provides higher increasing trend (0.024˚C per year) for the yearly average maximum temperature but lower increasing trend (0.012˚C per year) for the yearly average minimum temperature than the estimates of Basak et al [76].…”

Section: Plos Climatementioning

confidence: 99%

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Long-term spatio-temporal variability and trends in rainfall and temperature extremes and their potential risk to rice production in Bangladesh

et al. 2022

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Understanding the historical and future spatio-temporal changes in climate extremes and their potential risk to rice production is crucial for achieving food security in Bangladesh. This paper presents results from a study on trend analysis for 13 climate metrics that significantly influence rice production. The analysis was conducted using the non-parametric Mann-Kendall test and the Theil-Sen slope estimator methods. The study included data from all available weather stations in Bangladesh and the assessment was done for both the wet (May to October) and dry (November to April) seasons, which cover the growing seasons of the country’s three types of rice: Aus, Aman and Boro. Results show significant decreasing trends for wet season rainfall (>12 mm/season/year in some stations) in the central and north regions. In addition, dry season rainfall is decreasing significantly in many areas, whilst dry season dry spells are increasing throughout Bangladesh. Decrease in rainfall in some of these areas are of concern because of its impacts on rainfed Aus rice and in the sowing/planting of rainfed Aman rice and irrigated dry season Boro rice. The maximum temperatures in the wet season are increasing throughout the country at 0.5°C every ten years, significantly at most of the climate stations. The analysis shows that the number of days with temperature >36°C has significantly increased in 18 stations over the last three decades, which implies a serious risk to Aman rice yield. The current maximum temperatures (both in the wet and dry seasons) are higher than the optimum temperature ranges for rice production, and this will have likely adverse effects on yield in the face of climate change with increasing temperatures. The results herein have practical implications for planning appropriate adaptation policies to ensure food security in the country.

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Section: Plos Climatesupporting

confidence: 61%

Section: Plos Climatementioning

confidence: 99%

Long-term spatio-temporal variability and trends in rainfall and temperature extremes and their potential risk to rice production in Bangladesh

et al. 2022

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“…Agriculture, which is the main source of income for the populations of this region, and particularly those of Senegal, is the most sensitive sector to these extreme changes in temperature. Indeed, very large increases in temperature can inhibit the growth of certain plants (Salack et al, 2015;Basak et al, 2013). Thus, yields of some crops such as wheat, rice, maize or groundnuts can be greatly reduced by extremely high temperatures at the key stage of their development.…”

Section: Introductionmentioning

confidence: 99%

Future evolution of surface temperature extremes and the potential impacts on the human health in Senegal

Sarr¹,

Diba²,

Basse³

et al. 2019

Afr. J. Environ. Sci. Technol.

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Climate change impacts negatively vulnerable regions such as West African countries like Senegal, through an increase of climate extremes. The objectives of this study is to analyze the future evolution of the extreme temperature events and their impacts on human health in Senegal during the cold (DJF), hot (MAM) and wet seasons (JAS) under the greenhouse gas scenarios RCP4.5 and RCP8.5 using Climate projections of five (5) regional climate models (RCMs) of the Coordinated Regional Climate Downscaling Experiment (CORDEX) program. The results show that the biases of the RCMs are globally low especially their ensemble mean of the RCMs. This ensemble mean was afterwards considered in the analysis of the climate extremes in the near (2021-2050) and far future (2071-2100). When considering the near future, the frequency of the hot nights (Tn90p) increases under the scenario RCP8.5 (up to 90%) during the rainy season in the south of the country. As for the percentage of the hot days (Tx90p), it may reach approximately 70% under the scenario RCP8.5 in DJF over the majority of the country. Moreover, a strong increase of Tn90p and Tx90p is also diagnosed during the far future with values exceeding 80% over most parts of the country. Concerning the evolution of the heat wave magnitude index-daily, the ensemble mean of all models shows that the heat waves are more severe in MAM and JAS under both scenarios during the near and the far future over most parts of the country. To estimate the potential impacts of this heat stress on the human health, the heat index and the humidex are used. The analysis of the heat index shows that the sanitary risks are more perceptible over the whole country during the rainy season with values reaching the symptom band II for both scenarios during the far future. As for the humidex, it is characterized by a gradual increase from the historical period to the far future. This analysis highlights the fact that appropriate adaptation measures should be considered to tackle efficiently the increase of temperature extremes which may impact negatively the human health.

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“…However, there have been, to the best of our knowledge, no comprehensive studies of climate change by applying the panel data approach in Bangladesh. There are, of course, a few regional and national level studies on the impact of climate change and droughts on rural livelihoods and crop agriculture using descriptive statistics (Paul, 1998; Rashid and Islam, 2007) and simulation models (Karim et al ., 1996; Mahmood, 1998; Mahmood et al ., 2004; Rimi et al ., 2009; Basak, 2010).…”

Section: Introductionmentioning

confidence: 99%

Performance of rain-fed Aman rice yield in Bangladesh in the presence of climate change

Sarker

Alam

Gow

2017

Renew. Agric. Food Syst.

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This paper uses the framework of the Just–Pope production function to evaluate the impacts of climate change on yields of the rainfed Aman rice crop in Bangladesh. It analyses disaggregated district-level data on climate variables and Aman rice yield over a 48 year time horizon. The results reveal that changes in maximum temperatures have had positive and negative effects on yield in the linear and quadratic functional forms, respectively. However, the elasticity values in the variance function confirm that maximum temperature is risk-increasing for Aman rice while minimum temperature is likely to decrease yield variability. Rainfall has become risk-increasing for Aman rice. Based on three climate change scenarios, this paper also reveals that future climate change is expected to increase the variability of Aman rice yields. Finally, statistically significant dummies for different in-country climate zones require zone-specific adaptation policies to reduce the adverse impacts of climate change.

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Impacts of Temperature and Carbon dioxide on Rice yield in Bangladesh

Cited by 14 publications

References 2 publications

Long-term spatio-temporal variability and trends in rainfall and temperature extremes and their potential risk to rice production in Bangladesh

Long-term spatio-temporal variability and trends in rainfall and temperature extremes and their potential risk to rice production in Bangladesh

Future evolution of surface temperature extremes and the potential impacts on the human health in Senegal

Performance of rain-fed Aman rice yield in Bangladesh in the presence of climate change

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