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Modeling of Ecological Footprint and Climate Change Impacts on Food Security of the Hill Tracts of Chittagong in Bangladesh

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Abstract

This paper presents an integrated and dynamic model for the management of the uplands of the Hill Tracts of Chittagong to predict food security and environmental loading for gradual transition of shifting agriculture land into horticulture crops and teak plantation, and crop land into tobacco cultivation. Food security status for gradual transmission of shifting agriculture land into horticulture crops and teak plantation, and crop land into tobacco cultivation is the best option for food security, but this causes the highest environmental loading resulting from tobacco cultivation. Considering both food security and environmental degradation in terms of ecological footprint, the best option is gradual transition of shifting agriculture land into horticulture crops which provides moderate increase in the food security with a relatively lower environmental degradation in terms of ecological footprint. Crop growth model InfoCrop was used to predict the climate change impacts on rice and maize production in the uplands of the Hill Tracts of Chittagong. Climate change impacts on the yields of rice and maize of three treatments of temperature, carbon dioxide and rainfall change (+0 °C, +0 ppm and +0 % rainfall), (+2 °C, +50 ppm and 20 % rainfall) and (+2 °C, +100 ppm and 30 % rainfall) were assessed. The yield of rice decreases for treatment 2, but it increases for treatment 3. The yield of maize increases for treatments 2 and 3 since maize is a C4 plant. There is almost no change in food security at upazila (sub-district) level for the historical climate change scenario, but there is small change in the food security at upazila levels for IPCC climate change scenario.

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Acknowledgments

The financial support of FAO is gratefully acknowledged for this study under National Food Policy Capacity Strengthening Programme (CF-6). Constructive criticisms, comments and suggestions made throughout the study period by the TAT members Ms Marie Jo A. Cortijo and Prof. Dr. Shaikh Abdus Sabur for this research are also sincerely acknowledged.

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Authors and Affiliations

  1. Department of Farm Power and Machinery, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh

    B. K. Bala

  2. Bangladesh Agricultural Research Institute, Gazipur, Bangladesh

    M. A. Hossain

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Correspondence to B. K. Bala.

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Bala, B.K., Hossain, M.A. Modeling of Ecological Footprint and Climate Change Impacts on Food Security of the Hill Tracts of Chittagong in Bangladesh. Environ Model Assess 18, 39–55 (2013). https://doi.org/10.1007/s10666-012-9326-2

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