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Predictions from different studies reveal that the agricultural sector will face the acute challenges due to climate change. Models have shown that due to such changes, the rainy season will be wetter due to increased rainfall and dry season will be drier due to higher temperatures. This will cause more surface water bodies to dry out making less water available for irrigating crops in dry season...
Climatic factors especially temperature and relative humidity are the key factors influencing development of any insect pest and disease of rice. CO2 is the key factor for global climate change, resulting increase in temperature. The intergovernmental panel on climate change predicted that with the current emission scenario, global mean temperature would rise between 0.9°C and 3.5°C by the year 2100...
As a consequence of future climate change, agriculture is likely to be affected, which would also lead to risk of hunger and water resource scarcity with enhanced climate variability. Currently, the estimated population of Bangladesh stands at over 143.4 million and is likely to be 214.6 million in 2050. To keep pace with population growth and shrinking land resource base, the food production needs...
The crop production situation in Bangladesh is becoming worse due to a range of soil, water and climate related constraints. Global warming and climate change phenomena exacerbate this situation. Declining soil fertility, accelerated soil erosion and soil salinity are the major soil related constraints to crop production. About 0.87 million hectares (Mha) of land is affected by different degrees of...
Effects of climate change regarding food chain contamination are well-pronounced. Prevalence of environmental contaminants and chemical residues in food chain is one of them. To address such climate change effects sustainable public and environmental health are the prime concerns. Due to be of flood-plain physiography, Bangladesh is more vulnerable to the effects which can be intensified by regional...
This paper overviews the monitoring of surface water flow and storage using satellites. The overview is cast in the context of surface water-related problems of Bangladesh and South Asia. The paper then provides a basic introduction of a planned space-borne mission for surface water called SWOT (Surface Water and Ocean Topography) mission suggested for launch in 2015. The opportunities offered by...
South Asia is home to nearly 22% of the world’s population, including 40% of the world’s poor. Agriculture plays a critical role in terms of employment and livelihood security for a large majority of people in all countries of the region. The region is prone to climatic extremes, which regularly impact agricultural production and farmers’ livelihood. Himalayan glaciers, a major source of water for...
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