A large body of literature has addressed the impact of shrimp farming issues over loss of biodiversity, land salinization, and decrease of rice production. But for some experts, land use change from rice production to shrimp production is an adaptive strategy to climate change effects in tidal Bangladesh strongly affected by the sea level rise. As agriculture is considered more vulnerable to floods and salinization, shrimp farming has been promoted as better adapted to climate change. For the neoliberal policymakers and donors it is a way to speed up the transition of an economy based on agriculture to an urban and export oriented one. By speeding up the population land dispossession in coastal areas offer to garment and shrimp industries low wage labour from the countryside.
This presentation aim to address the cascade effect of climate change induced land-use change over migration in the Bengal delta tidal zone. The land use change interacts with disasters to intensify the effect of flood risk during cyclone in these areas. Several physical factors interact: the drastic change of roughness of soils, the spillover of inundated shrimp basins and the unlimited excavation of tunnel through out the embankment for saline water intrusion inside the shrimp farm that can be easily washed away during storm surge and high tide. Moreover, social unrests linked to dispossession of land, alteration in socio-ecological system and lack of labour of the shrimp production system less intensive have led to emigration linked to environmental and social degradation of population livelihood.