Territory of Bangladesh

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Terrain. Topography countries formed under the influence of the activities of the Ganges waters, Dzhamuny, Brahmaputra, Meghny and their tributaries. Along the shores of rivers, forming mnogorukavnuyu delta, extend priruslovye shafts, the outer side where the hollow down to the marsh and vlagonasyschennym floodplain lowlands. Although the hollow water beyond the shaft only at the peak of flooding, it can keep depressions in the terrain all year round. Ganges crosses the country from the western border in the south-easterly direction. After the merger with Dzhamunoy their combined flow Padma also be in the south-east, to the confluence with Meghnoy. Already under this name the river empties into the Bay of Bengal, and the current directly to the south ducts Ganga - Padma: Sibsa, Bhadra, Pusur, Garay - Madhumati, Kacha, Arialhan, Burishvar.



Spills on the major rivers have lasted several weeks. Hollow water barrier priruslovyh cross shaft and submerging large areas of muddy streams. Regularly during floods submerging large areas of districts in Dhaka and Faridpur in central Bangladesh, where the alluvial soil, enrich silt in the flood, are characterized by high natural fertility. In flood the Ganges, Brahmaputra, Dzhamuna and other rivers often change the channel. This often leads to erosion of farmland and the formation of new sand islands in the broad channels of migratory streams.

In the north-east of the country spills Meghny inflows are more stable. Along the plateau of Shillong in India lies deflection, which extends further south into the territory of Bangladesh, which is called the Meghna depression. Partly depression, even in 320 km from the coast up to not more than 3 m above the UM The hollow is filled with water downward, forming the existing May and October the lake.

Although the north-western districts of Bangladesh, which are between the Ganges and Brahmaputra, occupy a higher position, the top of the surface hardly exceeds 90 m. Here, in a low-grade areas to the south is dominated by erosion-accumulative forms of relief. Power of the sedimentary cover reaches several hundred meters. At r.Tista occurring catastrophic floods, and channel often changes its position.

In the south-east of Bangladesh to the north-west to south-east extend deeply dissected western ridges of mountains and mountains Lushai Chittagong. In the mountains, some peaks reach Chittagong marks approx. 900 m and the highest point of the mountain country RENGO-Tlang - 957 m. The average current principal rivers of the region Karnaphuli built the first hydroelectric power station in the country.