By Winston Yu, Mozaharul Alam, Ahmadul Hassan, Abu Saleh Khan, Alex Ruane, Cynthia Rosenzweig, David Major, James Thurlow
Dealing with weather variability and alter continues to be a key improvement and foodstuff protection factor in Bangladesh. regardless of major investments, floods, droughts, and cyclones over the last twenty years proceed to reason large fiscal harm and impair livelihoods. weather swap will pose extra dangers to ongoing efforts to minimize poverty. This e-book examines the results of weather switch on nutrients protection in Bangladesh and identifies variation measures within the agriculture zone utilizing a accomplished built-in framework. First, the latest technology to be had is used to signify present weather and hydrology and its capability alterations. moment, country-specific survey and biophysical facts is used to derive extra practical and actual agricultural effect services and simulations. a number weather dangers (i.e. hotter temperatures, better carbon dioxide concentrations, altering features of floods, droughts and capability sea point upward thrust) is taken into account to achieve a extra whole photo of power agriculture affects. 3rd, whereas estimating alterations in construction is necessary, fiscal responses could to some extent buffer opposed to the actual losses envisioned, and an overview is made from those. foodstuff safety relies not just on creation, but additionally destiny nutrition specifications, source of revenue degrees and commodity costs. eventually, version percentages are pointed out for the sphere. This e-book is the 1st to mix those a number of disciplines and analytical techniques to comprehensively deal with those affects. The framework will function an invaluable consultant to layout coverage intervention recommendations and investments in variation measures.
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Extra info for Climate Change Risks and Food Security in Bangladesh (Earthscan Climate)
3 Historical trends in land area under rice cultivation in Bangladesh, 1972–2006 Source: Bangladesh Bureau of Statistics, 2008c. drops dramatically during major ﬂood years, driving almost the entire decline in overall production. 4). However, in relative terms, the land area declines dominate the yield changes. In contrast, yield improvements dominate the recovery years after ﬂoods. 5). Actual yields are much lower than the potential yields (5–10kg/ha) observed at research plots under controlled ﬁeld conditions (Sattar, 2000).
Rainfall and evaporation data serve as boundary conditions for rain-fed sub-catchments. Irrigation withdrawals and river management controls in upstream catchments were not considered in calibrating the model. Monthly temperature Future Flood Hydrology data was available at several stations within the basin. Temperature data was also incorporated as an additional boundary condition for snow-fed catchments. Actual daily rainfall data within the GBM basin was limited to a few stations. 25° horizontal resolution) measured by the Tropical Rainfall Measurement Mission (TRMM) and expanded to a 30-year record covering 1978–2008 using a bootstrapping weather generator.
Several climate change scenarios for Bangladesh have been published in recent years. 4ºC by 2100, with higher increases in the wintertime. 7 per cent by 2100, with indications of winter drying and summer rainfall increases. These projected seasonal changes are consistently found across many studies of the South Asian monsoon region. Tanner et al (2007) followed a similar approach, identifying 10 out of 18 models from the IPCC Third Assessment Report (TAR) (IPCC, 2001) to project into the future using the IPCC A2 and B1 scenarios.