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20 April, 2019 00:00 00 AM / LAST MODIFIED: 20 April, 2019 01:14:23 AM
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Changing rainfall patterns

Climate change is an immediate concern in Bangladesh. The country’s geophysical characteristics expose it to extreme events, and its economy relies on agriculture, which is highly climate sensitive. Bangladesh continues to reduce poverty but still has a long way to go, as one out of every four Bangladeshi remains poor. These factors imply that the smallest shocks or stresses can push the already socio-economically marginalised sections of the population further into poverty and deprivation. Meanwhile, rainfall patterns are already shifting, and the intensity of rainfall is projected to increase in the next few decades. Bangladesh has also been exhibiting increasing trends in annual mean temperatures. The situation will continue to worsen, indicating an urgent need to build the resilience of people and their livelihoods to climate change.

An important aspect to be understood regarding the relationship between rainfall and agriculture is fruit that rainfall is the major factor in the growth and production of food crops both at the germination and development stage. But with a change in the rainfall patterns temperatures will rise and rainfall will increase in some places. In other places, rainfall will decrease. Other than the effect of high and low rainfall on cropping patterns, it is predicted that phenomena such as coastal flooding will reduce the amount of land available for agriculture. Farmers are already finding it difficult to cope with these environmental changes, as almost all crops are season-dependent and rainfall-dependent. Temperature and rainfall changes induced by climate change are likely to further react with other parameters of plant growth like atmospheric gases, fertilizers, insects, plant pathogens, weeds, and the soil’s organic matter. This again is expected to produce unanticipated responses.

Climate change being a continuous and long term process, its effects and solutions are also time and effort consuming. Agricultural adaptation options for this can be grouped as technological developments, government programmes, farm production practices and farm financial management. Agricultural policies and investments needs to be more strategic in Africa and Asia, where most of the world’s poor communities live, and where there is a large yield gap in rainfed agriculture. Building climate-resilient, migrant-friendly regions  in Bangladesh has become an urgent need in order to tackle the adverse effects of future climate change. Infrastructure which can not only absorb shocks, but also attract rural people providing services and livelihood opportunities will ease the population pressure on major cities.

 

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Editor : M. Shamsur Rahman

Published by the Editor on behalf of Independent Publications Limited at Media Printers, 446/H, Tejgaon I/A, Dhaka-1215.
Editorial, News & Commercial Offices : Beximco Media Complex, 149-150 Tejgaon I/A, Dhaka-1208, Bangladesh. GPO Box No. 934, Dhaka-1000.

Editor : M. Shamsur Rahman
Published by the Editor on behalf of Independent Publications Limited at Media Printers, 446/H, Tejgaon I/A, Dhaka-1215.
Editorial, News & Commercial Offices : Beximco Media Complex, 149-150 Tejgaon I/A, Dhaka-1208, Bangladesh. GPO Box No. 934, Dhaka-1000.

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