Appraising drought hazard during Boro rice growing period in western Bangladesh

International Journal of Biometeorology
Most Rukaiya Muntarin ZinatAbu Reza Md Towfiqul Islam

Abstract

Drought is one of the critical agro-meteorological hazards in the world including Bangladesh. Rice is the major food grain in Bangladesh, and drought has threatened the food grain and the country's food security. However, drought hazard (DH) in the Boro rice growing period and their associations are less investigated in Bangladesh. Hence, we intend to appraise the DH in the vegetative, reproductive, and ripening phases and the whole growing season based on the daily temperature, precipitation data, and yearly rice phenology dataset from 8 meteorological stations in western Bangladesh from 1980 to 2013. The Mann-Kendall (M-K) test was employed to identify the trend in phenology dates and drought hazard. The standardized precipitation evapotranspiration index (SPEI) was adopted to compute the DH. The results show that moderate to severe drought events occurred in western Bangladesh during Boro rice growing period. The transplanting dates were delayed in the southwestern part by a rate of 1.31 day/year along with a trend towards a shorter and more humid ripening phase (p < 0.05). By contrast, transplanting dates were started earlier in the northwestern part with a rate of - 0.48 day/year along with the enhanced length of the repro...Continue Reading

References

Nov 30, 2016·The Science of the Total Environment·Zhaoli WangMingyuan Wang
May 17, 2017·International Journal of Biometeorology·Jin HuangZhenghua Hu
Jan 2, 2018·The Science of the Total Environment·Meng LiAbu Reza Md Towfiqul Islam
Jul 13, 2019·The Science of the Total Environment·Md Siddiqur Rahman, Abu Reza Md Towfiqul Islam

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Citations

Jun 25, 2021·Environmental Monitoring and Assessment·Zhenghua HuCongcong Pan
Jul 9, 2021·The Science of the Total Environment·Md Kamrul Hasan, Lalit Kumar
Aug 3, 2021·Theoretical and Applied Climatology·Mahzabin Binte RahmanJaved Mallick

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