Affiliation:
1. Department of Disaster Management, Begum Rokeya University, Rangpur 5400, Bangladesh
Abstract
Drought risk has become a major threat for sustaining food security in Bangladesh; the particularly northwestern region of Bangladesh. The objective of the study is to assess drought disaster risk on Boro paddy cultivated areas of northwestern Bangladesh using drought disaster risk index (DDRI) model. The sensitivity of Boro paddy to droughts during crop-growing seasons and irrigation recoverability were employed to reflect vulnerability condition. Moreover, the threshold level of the standardized precipitation evapotranspiration index (SPEI) was applied to evaluate the drought hazard on Boro paddy cultivated areas in the northwestern region of Bangladesh. The probability density function (PDF) was used to show the threshold level of drought hazard. The results show that drought hazard is comparatively severe in Ishardi area compared to other northwestern regions of Bangladesh. The drought disaster risk is higher in Ishardi and Rajshahi areas than Rangpur and Dinajpur areas. Although Ishardi area is more prone to high drought risk, at the same time, the recoverability rate is also quicker than any other areas. The relationship between Boro rice yield rates and drought disaster risk is insignificant. The average Boro yield rates during the period of 1976 to 2016 are 19% for Ishardi and Rajshahi areas, 20% for Rangpur and Dinajpur areas and 21% for Bogra respectively according to the total irrigation area. The outcomes of the study can aid to adopt drought condition under changing the climate and also provide guidance for future drought mitigation in the northwest region of Bangladesh.
Publisher
European Academy of Applied and Social Sciences (EURAASS)
Reference39 articles.
1. Ali, A. (1996). Vulnerability of Bangladesh to climate change and sea level rise through ropical cyclones and storm surges. Water Air Soil Pollut 94(d):171–179.
2. Ahmed, A.U. (2004). Adaptation to climate change in Bangladesh: learning by doing. UNFCCC Workshop on Adaptation, Bonn, 18(3): 67-70.
3. Barlow, M., Cullen, H., Lyon, B. AndWilhelmi, O. (2006). Drought disaster in Asia, In Natural Disaster Hotspots Case Studies, World Bank Disaster Risk Management Series No. 6, J. Arnold, R. Chen, U. Deichmann, M. Dilley, A. Lerner Lam, R. Pullen and Z. Trojans' (Eds). httpo://www.fao.org/ag/agn/agns/files/HLCL Climate Change and Food Safety. Pdf.
4. Bangladesh Bureau of Statistics (2003). Population Census 2000: National Report (Provisional). Bangladesh Bureau of Statistics, Dhaka, Bangladesh.
5. BRRI (2006). Improvement of standard Boro rice. BRRI (Bangladesh Rice Research Institute) Annual Report for July 2005-June 2006. Plant Breeding Division, BRRI, Gazipur, Bangladesh. Journal of Civil Engineering (IEB), 38 (2) (2010) 95-108.
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