J. Sci. Technol. Environ. Inform. | Volume 10, Issue 01, 673-684 | https://doi.org/10.18801/jstei.100120.68
Article type: Research article, Article received: 01.07.2020; Revised: 12.07.2020; First published online: 15 August 2020
Article type: Research article, Article received: 01.07.2020; Revised: 12.07.2020; First published online: 15 August 2020
Trend of irrigation water requirement in Halda River basin of Bangladesh
Haque, M. P. 1 and Chowdhury S. M. K. H. 2
1 Irrigation and Water Management Division, RARS, Bangladesh Agricultural Research Institute, Hathazari, Chittagong.
2 On-Farm Research Division, RARS, Bangladesh Agricultural Research Institute, Hathazari, Chittagong, Bangladesh.
✉ Corresponding author: [email protected]
1 Irrigation and Water Management Division, RARS, Bangladesh Agricultural Research Institute, Hathazari, Chittagong.
2 On-Farm Research Division, RARS, Bangladesh Agricultural Research Institute, Hathazari, Chittagong, Bangladesh.
✉ Corresponding author: [email protected]
Abstract
The precise estimation of irrigation water requirement trends has a vital role in water resources planning for agricultural growth and development in the Halda River basin. The trend of net irrigation water requirement and irrigation parameters was detected through twenty-seven years of data.. The Mann-Kendall method was tested to find out the trend before that serial correlation test was performed with rank von Neumann ratio for lag-one auto-correlation. In case of serial- correlation significance, the pre-whitened time series data was used. Results revealed that net irrigation water requirement of Boro rice, mustard, cowpea, eggplant, tomato, wheat, maize and sweet potato was the increasing trend bounded between 8.15 mm and 2.31 mm per year at 1% level of significance. The trend was an integrative effect of wind speed, relative humidity, rainfall, and Evapotranspiration (ET0) rather than temperature. The non-significance trend of rainfall was found in this basin (p<0.01). Reference ET0 in the dry season (Nov, Dec, Jan and Feb) had trend upward at a 1% level of significance. Hence, the upward trend predicts extra demand for irrigation water in the near future for sustainable crop production in the Halda River basin.
Key Words: Evapotranspiration (ET0), Mann-Kendall test, Net irrigation water requirement, Serial correlation
The precise estimation of irrigation water requirement trends has a vital role in water resources planning for agricultural growth and development in the Halda River basin. The trend of net irrigation water requirement and irrigation parameters was detected through twenty-seven years of data.. The Mann-Kendall method was tested to find out the trend before that serial correlation test was performed with rank von Neumann ratio for lag-one auto-correlation. In case of serial- correlation significance, the pre-whitened time series data was used. Results revealed that net irrigation water requirement of Boro rice, mustard, cowpea, eggplant, tomato, wheat, maize and sweet potato was the increasing trend bounded between 8.15 mm and 2.31 mm per year at 1% level of significance. The trend was an integrative effect of wind speed, relative humidity, rainfall, and Evapotranspiration (ET0) rather than temperature. The non-significance trend of rainfall was found in this basin (p<0.01). Reference ET0 in the dry season (Nov, Dec, Jan and Feb) had trend upward at a 1% level of significance. Hence, the upward trend predicts extra demand for irrigation water in the near future for sustainable crop production in the Halda River basin.
Key Words: Evapotranspiration (ET0), Mann-Kendall test, Net irrigation water requirement, Serial correlation
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Article Citations
MLA
Haque and Chowdhury “Trend of irrigation water requirement in Halda river basin of Bangladesh.” Journal of Science, Technology and Environment Informatics, 10(01) (2020): 673-684.
APA
Haque, M. P. and Chowdhury S. M. K. H. (2020). Trend of irrigation water requirement in Halda river basin of Bangladesh. Journal of Science, Technology and Environment Informatics, 10(01), 673-684.
Chicago
Haque, M. P. and Chowdhury S. M. K. H. “Trend of irrigation water requirement in Halda river basin of Bangladesh.” Journal of Science, Technology and Environment Informatics, 10(01), (2020): 673-684.
Harvard
Haque, M. P. and Chowdhury S. M. K. H. 2020. Trend of irrigation water requirement in Halda river basin of Bangladesh. Journal of Science, Technology and Environment Informatics, 10(01), pp. 673-684.
Vancouver
Haque, MP and Chowdhury, SMKH. Trend of irrigation water requirement in Halda river basin of Bangladesh. Journal of Science, Technology and Environment Informatics, 2020 August 10(01), 673-684.
Haque and Chowdhury “Trend of irrigation water requirement in Halda river basin of Bangladesh.” Journal of Science, Technology and Environment Informatics, 10(01) (2020): 673-684.
APA
Haque, M. P. and Chowdhury S. M. K. H. (2020). Trend of irrigation water requirement in Halda river basin of Bangladesh. Journal of Science, Technology and Environment Informatics, 10(01), 673-684.
Chicago
Haque, M. P. and Chowdhury S. M. K. H. “Trend of irrigation water requirement in Halda river basin of Bangladesh.” Journal of Science, Technology and Environment Informatics, 10(01), (2020): 673-684.
Harvard
Haque, M. P. and Chowdhury S. M. K. H. 2020. Trend of irrigation water requirement in Halda river basin of Bangladesh. Journal of Science, Technology and Environment Informatics, 10(01), pp. 673-684.
Vancouver
Haque, MP and Chowdhury, SMKH. Trend of irrigation water requirement in Halda river basin of Bangladesh. Journal of Science, Technology and Environment Informatics, 2020 August 10(01), 673-684.
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Journal of Science, Technology and Environment Informatics, EISSN 2409-7632.