Trends in climate and influence of climate-driven crop yields in southern coastal region, Bangladesh

Real, Md. Khalid Hassan; Mia, Md. Younus; Mallick, Javed; Bindajam, Ahmed Ali; Islam, Abu Reza Md. Towfiqul

doi:10.1007/s00704-023-04382-8

Cited by 2 publications

(4 citation statements)

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“…For that reason, the ADF test looked at unit roots in climate data [ 61 ]. Because the data series in this study spans more than 65 years, it is worth checking for stationarity [ 22 ]. Before estimating the regression model, this criterion necessitates a thorough examination of the datasets to guarantee that they are stationary.…”

Section: Methodsmentioning

confidence: 99%

“…Furthermore, floods contribute to the further salinization of coastal lands, which leads to soil salinization and the loss of harvests and productive agricultural land [ 15 ]. Climate variability has a severe impact on crop yield variability [ 16 – 22 ]. Thus, the effects of climate change on crop yield are significant concerns for Bangladesh’s economic development as well as food security.…”

Section: Introductionmentioning

confidence: 99%

“…A study [ 27 ] explored the variability of climatic parameters with three popular rice varieties in northwestern Bangladesh. Recently, another study [ 22 ] assessed the trends in climatic factors and their effects on the yield of rice crops in the southern region of Bangladesh. But the earlier studies did not examine the trends in climatic variables at the national level, and regional-level data on yield and weather might not give a clear picture of the relationship between climate and yield because climatic variables affect agricultural production in Bangladesh in different agroecological zones [ 28 ].…”

Section: Introductionmentioning

confidence: 99%

“…Several studies, such as [ 24 , 27 , 34 , 35 ], also tried to find linear trends in the change in temperature and rainfall in Bangladesh. Although numerous studies on the trend analysis of temperature and rainfall data in Bangladesh have been performed in recent decades [ 21 – 22 , 27 , 35 , 36 ], few comprehensive studies on climatic trends regarding rice yield under climate change have been evaluated [ 26 , 37 , 38 ]. Due to significant regional variability in temperature [ 18 , 23 ] and irregular rainfall distribution, it is essential to conduct thorough studies at the local and national levels [ 35 ].…”

Section: Introductionmentioning

confidence: 99%

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Climate change in Bangladesh: Temperature and rainfall climatology of Bangladesh for 1949–2013 and its implication on rice yield

Alam,

Hridoy,

Tusher

et al. 2023

PLoS ONE

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Bangladesh has been ranked as one of the world’s top countries affected by climate change, particularly in terms of agricultural crop sector. The purpose of this study is to identify spatial and temporal changes and trends in long-term climate at local and national scales, as well as their implications for rice yield. In this study, Modified Mann-Kendall and Sen’s slope tests were used to detect significant trends and the magnitude of changes in temperature and rainfall. The temperature and rainfall data observed and recorded at 35 meteorological stations in Bangladesh over 65-years in the time span between the years 1949 and 2013 have been used to detect these changes and trends of variation. The results show that mean annual Tmean, Tmin, and Tmax have increased significantly by 0.13°C, 0.13°C, and 0.13°C/decade, respectively. The most significant increasing trend in seasonal temperatures for the respective Tmean, Tmin, and Tmax was 0.18°C per decade (post-monsoon), 0.18°C/decade (winter), and 0.23°C/decade (post-monsoon), respectively. Furthermore, the mean annual and pre-monsoon rainfall showed a significant increasing trend at a rate of 4.20 mm and 1.35 mm/year, respectively. This paper also evaluates climate variability impacts on three major rice crops, Aus, Aman, and Boro during 1970–2013. The results suggest that crop yield variability can be explained by climate variability during Aus, Aman, and Boro seasons by 33, 25, and 16%, respectively. Maximum temperature significantly affected the Aus and Aman crop yield, whereas rainfall significantly affected all rice crops’ yield. This study sheds light on sustainable agriculture in the context of climate change, which all relevant authorities should investigate in order to examine climate-resilient, high-yield crop cultivation.

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Section: Methodsmentioning

confidence: 99%