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

H.R. Parate 1, 2 M.S. Mohan Kumar 1, 2 M. Descloitres 3 Laurent Barbiero 1, 4 L. Ruiz 1 J.J. Braun 1, 4 M. Sekhar 1, 2 C. Kumar 1
1 IFCWS - Indo-French Cell for Water Sciences
2 Department of Civil Engineering
3 HYBIS
LTHE - Laboratoire d'étude des transferts en hydrologie et environnement, IFCWS - Indo-French Cell for Water Sciences
4 LMTG - Laboratoire des Mécanismes et Transfert en Géologie
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.
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Submitted on : Tuesday, December 6, 2011 - 4:02:47 PM
Last modification on : Tuesday, September 7, 2021 - 3:54:32 PM

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H.R. Parate, M.S. Mohan Kumar, M. Descloitres, Laurent Barbiero, L. Ruiz, et al.. Comparison of electrical resistivity by geophysical method and neutron probe logging for soil moisture monitoring in a forested watershed.. Current Science, Indian Academy of Sciences, 2011, 100 (9), pp.1405-1412. ⟨insu-00648936⟩

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