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Comparison of electrical resistivity by geophysical method and neutron probe logging for soil moisture monitoring in a forested watershed

Parate, Harshad R and Kumar, Mohan MS and Descloitres, Marc and Barbiero, Laurent and Ruiz, Laurent and Braun, Jean-Jacques and Sekhar, M and Kumar, CS (2011) Comparison of electrical resistivity by geophysical method and neutron probe logging for soil moisture monitoring in a forested watershed. In: Current Science (Bangalore), 100 (9). pp. 1405-1412.

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Abstract

Geophysical methods are becoming more popular nowadays in the field of hydrology due to their time and space efficiency. So an attempt has been made here to relate electrical resistivity with soil moisture content in the field. The experiments were carried out in an experimental watershed `Mulehole' in southern India, which is a forested watershed with approximately 80% red soil. Five auger holes were drilled to perform the soil moisture and electrical resistivity measurements in a toposequence having red and black soils, with sandy weathered soil at the bottom. Soil moisture was measured using neutron probe and electrical resistivity was measured using electrical logging tool. The results indicate that electrical resistivity measurements can be used to measure soil moisture content for red soils only.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Indian Academy of Sciences.
Keywords: Electrical resistivity;forested watershed;neutron probe; soil moisture
Department/Centre: Division of Mechanical Sciences > Civil Engineering
Date Deposited: 22 Jun 2011 09:38
Last Modified: 22 Jun 2011 09:38
URI: http://eprints.iisc.ernet.in/id/eprint/38432

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