Malda district of West Bengal is divided into three physiographic units' viz. Tal, Diara and Barind. Of these, Tal is the marshy tract, mostly composed of bog lands formed in many pockets around shrinking inland drainage lines. The Diara region, on the other hand, is a well-drained flatland formed by fluvial deposition of new and fertile alluvium that provides ideal sites for livelihood practices giving rise to very high population density. Floods and riverbank erosion are common in these regions that certainly influence the demographic attributes of the area. Location wise, some part of Diara is adjacent to Indo-Bangladesh border and Jharkhand and Tal region borders Bihar. As a result, movement of the population both at national and international level is common, which also results in the demographic changes. The present article highlights on the changing demographic attributes viz. the size, growth, density, and distribution of the population in these two regions from 1971-2011 census, based on the secondary data where decadal growth rates (geometric and exponential) and population concentration index of Tal and Diara have been computed.
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Author Name: Hiranmay Rishi Dr. Subrata Purkayastha
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Keywords: Tal Diara Physiographic Units Population Concentration Index
ISSN: 22493921
EISSN: 22494316
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