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Regional field measurement of soil moisture content with neutron probe

Chan, Derek, Rajeev, Pathnmanathna, Gallage, Chaminda, & Kodikara, Jayantha (2010) Regional field measurement of soil moisture content with neutron probe. In Li, John & Lin, Meei-Ling (Eds.) Proceedings of The Seventeenth Southeast Asian Geotechnical Conference, Taiwan Geotechnical Society/Southeast Asian Geotechnical Society , Taipei, Taiwan, pp. 92-95.

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Abstract

The neutron logging method has been widely used for field measurement of soil moisture content. This non-destructive method permitted the measurement of in-situ soil moisture content at various depths without the need for burying any sensor. Twenty-three sites located around regional Melbourne have been selected for long term monitoring of soil moisture content using neutron probe. Soil samples collected during the installation are used for site characterisation and neutron probe calibration purposes. A linear relationship is obtained between the corrected neutron probe reading and moisture content for both the individual and combined data from seven sites. It is observed that the liner relationship, developed using combined data, can be used for all sites with an average accuracy of about 80%. Monitoring of the variation of soil moisture content with depth in six months for two sites is presented in this paper.

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ID Code: 38965
Item Type: Conference Paper
Keywords: Soil Moisture, Netron Probe, Unsaturated Soils, Rainfall, Soil Swelling
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Civil Geotechnical Engineering (090501)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Urban Development
Copyright Owner: Copyright 2010 Taiwan Geotechnical Society/Southeast Asian Geotechnical Society
Deposited On: 03 Dec 2010 10:43
Last Modified: 01 Mar 2012 00:24

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