Nonfiction 1

The Soils of Bangladesh by S.M. Imamul Huq

By S.M. Imamul Huq

This e-book offers a finished assessment of the soils of Bangladesh. it really is compiled by way of authors with significant event in soil similar difficulties and capability mitigation ways. It discusses the improvement of Soil technological know-how as anyone self-discipline in a rustic with restricted assets and the place soil performs a pivotal function for the economic climate; the formation of other agro-climatic areas; and the results of human-induced soil degradation and climatic swap on its soils, geology and geomorphology and significant soil kinds. It examines 'problem soils' and the way they're controlled, the state of affairs of soil fertility prestige, and land and crop administration, in addition to targeting the longer term soils. themes lined comprise: the historical past of soil examine in Bangladesh; agro-climatic areas of Bangladesh; soil and climatic switch, significant soil forms; soil maps; soil houses; soil class; soil fertility; land use and plants; land use alterations; human-induced soil degradation; soil contaminants; and destiny soil matters. This e-book might be a precious source for researchers and soil technology professionals.

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The parent alluvium is rich in weatherable minerals, especially biotite, low in organic matter, and neutral to moderately alkaline in reaction. Six general soil types occupy the area. Organic matter status is low and fertility status is low to medium. 10 Young Brahmaputra and Jamuna Floodplain The region comprises the area of Brahmaputra sediments. The landscape and soils closely resemble those of parts of the Tista Meander Floodplain and the Karatoya–Bangali Floodplain. This region includes the western part of the Sherpur, Jamalpur, and Tangail districts; parts of Manikganj, Dhaka, Munshiganj, Narayanganj, and Ghajipur districts; and a belt adjoining the Old Brahmaputra channel through Mymensingh, Kishoreganj, and Narsingdi districts covering an area of 5,924 km2.

1 Floodplain The floodplain constitutes about 80 % of the total land surface of Bangladesh. It is formed by the sediments deposited by the major rivers of Tista, Brahmaputura, Jamuna, Ganges, Meghna, Surma–Kushiara, Karotoa–Bangali, Atrai, Punarbhaba, and other small rivers. During the process of deposition of sediments under different environmental conditions, some differentiable landscapes are formed within the broad floodplain landscape. Five major types of floodplains are recognized: active floodplain, meander floodplain, tidal floodplain, estuarine floodplain, and basin.

The formation is generally almost horizontal, but has been broken into a number of fault blocks, some of which are slightly tilted. Extensive areas of the Barind Tract and parts of the Madhupur Tract have almost level terracelike topography. The western part of the Barind Tract and considerable parts of the Madhupur Tract are closely dissected. The Madhupur clay was earlier called the older alluvium and was regarded as being from the Pleistocene age. The 1964 Geological Map of Pakistan gave the formation the name Madhupur clay and suggested that it might correlate with the Dupi Tila formation, officially regarded as being from the Mio-Pliocene age.

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