A. K. Dolui , S. Dey

Abstract

The zero point of charge of some Tarai and Teesta alluvial soils under forest floor in West Bengal was studied. The electrochemical behaviour of these soils was found to be similar to that of the constant potential systems in which the surface potential is determined by H⁺ and OH⁺ ions in the equilibrium solution, hence charge distributed varied substantially with pH and electrolyte concentration. The point of zero charge of the soils ranged from pH 2.30 to 2.90 with the Karnajora soils series having the lowest values and the Haihaipathar soil series the highest. The (pH _KC1 - ZPC) values of Haihaipathar soils series (varying from 0.90 to 1.30) are less than that of Karanjora series (varying from 2.30 to 2.45) indicating that Haihaipathar soil series is more developed than Karnajora soil series.

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A. K. Dolui , N. Das

Abstract

No abstract

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A. K. Dolui , R. N. Boxi , S. K. Banerjee

Abstract

The physiochemical characteristics of some lateritic soild under forest flossr in topo sequence of West Bengal were studied. The soils were then classified according to modern system of classification. The chemical composition of these soils has been influenced to a great extent by drainage condition, different transport of eroded material, leaching, translocation and redeposition of mobile soil constituents. Chemical composition of the soils indicates trend in laterisation process. Appreciable base status of the soils, however, goes to prove that weathering has not progress so far.

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