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title

DETERMINATION OF INFILTRATION RATE OF SOILS USING DOUBLE RING INFILTROMETER – STUDY OF SOIL CHARACTERISTICS OF KUNDAPURA, UDUPI DIST.

Author(s):

Poojashree B.P

Keywords:

Abstract

Infiltration is the process by which water on the ground surface enters the soil. Infiltration rate in soil science is a measure of the rate at which soil is able to absorb rainfall or irrigation. It is measured in inches per hour or millimeters per hour. Precipitation falling on the soil wets down and it starts penetrating into the soil. Water restores 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 grains and 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 main aim of this study is the determination of infiltration rate of soil and soil characteristic of Kundapura, Udupi District using Double ring infiltrometer. In this study tests are done by pouring water into the rings (of 30cm diameter and 60 cm diameter which is hammered in to the soil 10 cm and 30 cm respectively) until the depth is approximately 70-100 mm. At the same time, add water to the space between the two rings or the ring and the bund to the same depth. The water in the bund or within the two rings is to prevent a lateral spread of water from the infiltrometer. Recorded the clock time to measure the water level on the measuring rod and water in the ring refilled as water level on the measuring rod drops down. Same test done in the three places and same procedure is continued the drop in water level is the same over the same time interval. Taken readings frequently (e.g. every 1-2 minutes) at the beginning of the test, then extended the interval between readings as the time goes on (e.g. every 20-30 minutes).

Other Details

Paper ID: IJSARTV
Published in: Volume : 2, Issue : 10
Publication Date: 10/1/2016

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