IJIRST (International Journal for Innovative Research in Science & Technology)ISSN (online) : 2349-6010

 International Journal for Innovative Research in Science & Technology

Infiltration, Permeability, Liquid Limit and Plastic Limit of Soil


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International Journal for Innovative Research in Science & Technology
Volume 4 Issue - 6
Year of Publication : 2017
Authors : Vegi Varun ; Andavan

BibTeX:

@article{IJIRSTV4I6006,
     title={Infiltration, Permeability, Liquid Limit and Plastic Limit of Soil},
     author={Vegi Varun and Andavan},
     journal={International Journal for Innovative Research in Science & Technology},
     volume={4},
     number={6},
     pages={19--30},
     year={},
     url={http://www.ijirst.org/articles/IJIRSTV4I6006.pdf},
     publisher={IJIRST (International Journal for Innovative Research in Science & Technology)},
}



Abstract:

Precipitation falling on the soil wets down and it starts penetrating into the soil. Water stores to the formal level the soil moisture deficiency excess moving down by the gravity force through percolation or seepage to build up the water table. The water is driven into the porous soil by force of gravity. First the water wets soil grain sand then the extra water moves down due to gravitational force. The rate at which a soil absorbing the water in a given time is called infiltration rate and it depends on soil characteristics such as hydraulic conductivity, soil structure, vegetation cover. The infiltration plays an important role in generation of runoff volume, if infiltration rate of given soil is less than intensity of rainfall then it results in either accumulation of water on soil surface or in runoff. The different soil conditions affect the soil infiltration rate. Compacted soils due to movement of agricultural machines have a low infiltration rate which is prone to runoff generation. Infiltration will be maximum at the beginning and it decays exponentially and gets a constant value. There will be a decrease in infiltration rate day by day due to the saturation of the soil where as on the first day the infiltration rate will be more because soil will be dry in condition. Infiltration of water into the soil has important impact in the overall functioning of the variable land based activities. Two factors can greatly undermine availability of water for crops which is impervious layer and ground water table. The former might be due to excess infiltration which mostly a function of soil characteristic get through the later may be largely due to the deposit of clay that can create crust below the surface. The study of infiltration comes in many hydrological problems like runoff estimation, soil moisture budgeting and for planning of irrigation. Infiltration has an important place in the hydrological cycle.


Keywords:

Properties of Soil, Permeability flow of soils


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