Geo-Spatial Investigation of Climate Change Impacts on Irrigation Demand of Dry Season Boro Rice in Northwest Bangladesh

Authors

  • Nazifa Rahman Khan Department of Geography and Environmental Studies, University of Chittagong, Chittagong-4331, Bangladesh
  • Md Atiqur Rahman Department of Geography and Environmental Studies, University of Chittagong, Chittagong -4331, Bangladesh

DOI:

https://doi.org/10.3329/cujbs.v10i1.74256

Keywords:

Climate change, RCP, Boro rice, Irrigation Demand, Bangladesh

Abstract

The present study is an attempt to assess the irrigation demand of the dry season Boro rice in the northwest regions of Bangladesh using climatic, soil and crop data. The FAO-56 Penman–Monteith method was applied to calculate reference evapotranspiration and irrigation demand of Boro rice has been estimated using CROPWAT model. Both the observed and downscaled Representative Concentration Pathway (RCP) climatic data were used in the study. The result reveals that there is no significant change in irrigation demand of Boro rice from 1975 to present. However, the demand will increase significantly in future. The study projects that future irrigation demand of Boro rice in climate change situation for RCP 8.5 will be increased by 180-220 mm in 2075. It is expected that the findings will contribute in devising appropriate agricultural and irrigation plans for the region.

The Chittagong Univ. J. B. Sci.,Vol. 10(1 &2):217-235, 2020

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Published

2024-07-09

How to Cite

Khan , N. R., & Rahman, M. A. (2024). Geo-Spatial Investigation of Climate Change Impacts on Irrigation Demand of Dry Season Boro Rice in Northwest Bangladesh. Chittagong University Journal of Biological Sciences, 10(1), 217–235. https://doi.org/10.3329/cujbs.v10i1.74256

Issue

Vol. 10 No. 1-2 (2020)

Section

Articles