Impacts of climate change, agroecology and socio-economic factorson agricultural land use diversity in Bangladesh (1948–2008)
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The paper examines the impacts of climate change, agroecology and socio-economic factors on agricultural land use diversity (ALUD) using a panel data of 17 regions of Bangladesh covering a 61 year period (1948–2008) by applying a dynamic panel GMM estimator. Results revealed that ALUD and total rainfall have actually increased @ 0.19% and 0.02% per year whereas variability in temperature has declined @ 0.06% with significant differences across agroecological zones (AEZs). Among the climatic factors, total rainfall significantly increases ALUD. ALUD is also significantly influenced by agroecological characteristics. ALUD is significantly higher in Ganges River Floodplains but lower in Meghna River Floodplains and Chittagong Coastal Plain. Among the socio-economic factors, ALUD increases significantly with increase in the prices of vegetables, jute and phosphate fertilizer and R&D investment. ALUD significantly decreases with increase in the prices of lentil, onion, sugarcane, nitrogen and potassium fertilizers and extension expenditure. Policy implications include price policies to improve vegetable and jute prices, stabilise/reduce fertilizer prices and investments in R&D to develop crops that are suitable for high rainfall areas as well as specific AEZs in order to promote ALUD in Bangladesh.
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