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Managing salt affected soils: Issues and strategies

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Title Managing salt affected soils: Issues and strategies
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Creator Mahanta K. K., Kansal M. L. and Mishra G. C.
 
Subject salt affected soils
 
Description Not Available
Improper land and water management has amplified the degradation of soil across the world. In saline soil, high
concentration of soluble salts results in high soil permeability, thus, making soil physical conditions favorable
for leaching. But the presence of excess Na+ ions as in the sodic soil, makes the reclamation process more
complex because of the poor hydraulic conductivity and infiltration rate. The problem in the sodic soil is for the
swelled electric double layer on the clay surface. More monovalent ions are required to balance the fixed deficit
charges on the clay surface than the multivalent ions. Hence, the thickness of electric double layer in sodic soil
is more than the non-sodic soil where multivalent ions are dominant. Most of the previous studies on
reclamation of salt affected soils are field studies. A few analytical models were attempted without involving the
interaction of ions and geometry of soil, hence failed. The electric double layer has hardly been taken into
account for solving the reclamation problem of the sodic soil. As Na+ and Ca2+ ions are ions of concern for
reclamation of the sodic soil, the interactions among these ions need to be considered through the electric
double layer theory.
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Date 2018-11-12T11:24:11Z
2018-11-12T11:24:11Z
2015-03-15
 
Type Research Paper
 
Identifier Not Available
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http://krishi.icar.gov.in/jspui/handle/123456789/10539
 
Language English
 
Relation Not Available;
 
Publisher Not Available