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Current Science 100, 9 (2011) 1405-1412
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 1, 3, L. Barbiéro 1, 4, L. Ruiz 1, 5, J.J. Braun 1, 4, M. Sekhar 1, 2, C. Kumar 1
(05/2011)

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.
1 :  Indo-French Cell for Water Science,
Indian Institute of Science
2 :  Department of Civil Engineering
Indian Institute of Science
3 :  Laboratoire d'étude des transferts en hydrologie et environnement (LTHE)
CNRS : UMR5564 – OSUG – INSU – Université Joseph Fourier - Grenoble I – Institut National Polytechnique de Grenoble (INPG) – Institut de recherche pour le développement [IRD] : UR012
4 :  Laboratoire des Mécanismes et Transfert en Géologie (LMTG)
CNRS : UMR5563 – Observatoire Midi-Pyrénées – Université Paul Sabatier (UPS) - Toulouse III – Institut de recherche pour le développement [IRD] : UMR154
5 :  INRA
Institut national de la recherche agronomique (INRA)
HYBIS
Planète et Univers/Sciences de la Terre/Géomorphologie