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Research Article Open access CC BY 4.0

Global Warming and Sea Level Rising: Impact on Agriculture and Food Security in Southern Coastal Region of Bangladesh

M. A. Awal, M. A. H. Khan

Asian Journal of Geographical Research · pp. 9–36 · Published 17 Jul 2020

10.9734/ajgr/2020/v3i330107

Abstract

Climatologically, the entire southern coastal belt of Bangladesh is most vulnerable than the other parts of the country due to its spatial geo-morphological settings. Global warming and sea level rise are already observed and predicted to be occurred more with time. These bring real negative consequences on the agricultural production and food security, and livelihood for the people live in the coastal areas. Therefore, the study was conducted to analyze the effect of global warming and sea level rise on the agriculture and food security in southern coastal areas of Bangladesh. Both primary and secondary sources of information were collected. Stakeholder consultation, direct field visits and interview of climate affected people in the coastal region were carried out for collecting information on land-use and cropping patterns and adaptation measures to be taken to boost crop production against global warming and sea level rise. By the middle and end of the twenty first century, global annual mean temperature is predicted to be increased about 1.5oC and 2.5oC, respectively. These projected warming will lead to about 14, 32 and 88 cm sea level rise by 2030, 2050 and 2100, respectively which would cause inundation of about 8, 10 and 16 percent of total land masses in Bangladesh. Most of the coastal parts and associated islands of Khulna and Barisal divisions and western part of Chattagram division lie within one meter from sea level where incursion of saline water is common. It is predicted that these areas will be inundated and unsuitable for crop production due to upcoming sea level rise. The predominant crop in entire coastal belt is transplanted Aman with sporadic occurrences of Aus rice. The land in Boro rice season either loosely occupied by mungbean, grass pea, cowpea, groundnut, soybean, potato, sweet potato, chili etc or remained fallow until the following monsoon. A systemic analysis of all of the cyclones that originated from the Bay of Bengal since 1961 indicated that most devastating cyclones formation occurred from last quarter of April through May and from middle of October to November just prior to the harvest of Boro and Aman crops, respectively. Therefore, Boro and Aman rice harvests are mostly unpredictable every year posing great threat to the food security of the coastal people. These areas are criss-crossed by innumerable water canals or channels especially in Barisal and Khulna divisions which can be utilized for Boro rice cultivation in dry season despite some levels of salinity. Cultivation of salt-tolerant crop varieties could mitigate such hindrances. Introduction of saline tolerant Boro rice in coastal cropping patterns and/or advancing the harvesting times by a fortnight in both Aman and Boro rice seasons to avert cyclonic havoc not only ensure food security but also turn the entire coastal belt into a food surplus region.

Agriculture Bangladesh climate change coastal area food security global warming IPCC salinity intrusion sea level rise

References (26)

  1. 1 Chapter 12: What does the Anthropocene hold for citizenship? [DOI]
  2. 2 OECD Environmental Outlook to 2050 [DOI]
  3. 3 Physiological responses of the European cockle Cerastoderma edule (Bivalvia: Cardidae) as indicators of coastal lagoon pollution [DOI]
  4. 4 Monitoring mangrove forest dynamics of the Sundarbans in Bangladesh and India using multi-temporal satellite data from 1973 to 2000 [DOI]
  5. 5 Sea-level rise and human migration [DOI]
  6. 6 Effect of salinity on food security in the context of interior coast of Bangladesh [DOI]
  7. 7 Combined effects of climate change and sea-level rise project dramatic habitat loss of the globally endangered Bengal tiger in the Bangladesh Sundarbans [DOI]
  8. 8 The impact of climate change uncertainties on the performance of energy efficiency measures applied to dwellings [DOI]
  9. 9 A universal model for predicting human migration under climate change: examining future sea level rise in Bangladesh [DOI]
  10. 10 Climate Change and its Impacts on the Livelihoods of the Vulnerable People in the Southwestern Coastal Zone in Bangladesh [DOI]
  11. 11 Sea level rise and tigers: predicted impacts to Bangladesh’s Sundarbans mangroves [DOI]
  12. 12 Water logging in south-western coastal region of Bangladesh: local adaptation and policy options [DOI]
  13. 13 Development of Climate Change Scenarios with General Circulation Models [DOI]
  14. 14 Ecology of Sundarban, Bangladesh [DOI]
  15. 15 Climate change impacts on the Sundarbans mangrove ecosystem services and dependent livelihoods in Bangladesh
  16. 16 Mulch Induced Eco-physiological Growth and Yield of Maize [DOI]
  17. 17 Asset or liability? Aquaculture in a natural disaster prone area [DOI]
  18. 18 Water Logging in South-Western Coastal Region of Bangladesh: Causes and Consequences and People’s Response [DOI]
  19. 19 Effect of Mulching on Microclimatic Manipulation, Weed Suppression, and Growth and Yield of Pea (Pisum sativum L.) [DOI]
  20. 20 Mulches enhanced growth and yield of onion [DOI]
  21. 21 Microclimatic Alteration and Productivity of Mustard Crop as Induced by Indigenous Mulches [DOI]
  22. 22 Influence of Climate Change on Biodiversity and Ecosystems in the Bangladesh Sundarbans [DOI]
  23. 23 CLIMATE CHANGE AND SUSTAINABLE DEVELOPMENT: [DOI]
  24. 24 Alteration of Soil Temperature and Moisture Through Mulching on the Morpho-physiological Differentiation in Maize [DOI]
  25. 25 Environmental Refugees: A Humanitarian Crisis in India and Bangladesh [DOI]
  26. 26 Climate Changes over Bangladesh Delta: I. Slow-Onset Courses and Their Consequences

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