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Pedogenesis of Some Hydromorphic Soils of Upper Brahmaputra Valley Region, Assam, India

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Title Pedogenesis of Some Hydromorphic Soils of Upper Brahmaputra Valley Region, Assam, India
 
Creator SILADITYA BANDYOPADHYAY, P. RAY, S. RAMACHANDRAN, R.K. JENA, S.K. SINGH AND S.K. RAY
 
Subject Brahmaputra valley, Hydromorphic soils, Landforms, Land uses, Pedogenic indices, Soil maturity,
 
Description Not Available
Hydromorphic soils and their properties are key to address various issues of the waterlogged
regions related to its productivity and conservation. The present investigation is aimed to investigate the
pedogenesis of some hydromorphic soils of the Upper Brahmaputra valley region of Assam. Six pedons from
North West Jorhat Development block were selected and examined for the purpose. Detail morphological,
physical and chemical characteristics of the hydromorphic soils under different landforms and land uses
were done through land resource inventorization (at 1:10000 scale) using and fine resolution satellite image. The study showed change in soil characteristics with micro-topographic variation. Wide variability in
particle size is attributed to frequent occurrence of lithologically discontinued soil horizons in active flood
plains due to fluvial processes and changes in the course of Brahmaputra river. Soils were characterized by
strongly acidic (pH 4.74) to neutral (pH 6.7) in soil reaction, low (0.48%) to high (1.14%) in organic carbon,
low [3.13 cmol (p+) kg - 1] to medium [11.90 cmol (p+) kg - 1] in CEC and low (26%) to high (71%) in base
saturation status. Active flood plains were endowed with Typic Endoaquents, whereas in the younger and
older flood plains, soils formed were Fluventic Endoaquepts and Typic Endoaqualfs, respectively. The vertical distribution of different pedogenic indices were computed and discussed.
Not Available
 
Date 2021-07-24T13:35:07Z
2021-07-24T13:35:07Z
2018-08-01
 
Type Research Paper
 
Identifier 2
0255-7193
0255-7193
http://krishi.icar.gov.in/jspui/handle/123456789/49938
 
Language English
 
Relation Not Available;
 
Publisher Clay research