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GEOPHYSICAL MAPPING OF SOIL MOISTURE VARIATIONS IN CULTIVATED LAND. CASE STUDY: BUZAU COUNTY, ROMANIA

Dumitru Ioane

First published: 2018-06-20https://doi.org/10.5593/sgem2018/3.2/s13.053View metrics

Abstract

Major efforts are directed worldwide in order to establish proper strategies for the preservation of soil quality, its protection and sustainable use by precision farming techniques. Since the in-depth distribution of soil moisture represent valuable information for farmers, electric and electromagnetic techniques were employed for its investigation. Electrical resistivity tomography (ERT) with small electrode space interval was utilized for illustrating sectors of vertical water penetration and horizontal sectors of water accumulation. The electrical conductivity variations in soil obtained with induction electromagnetic (EMI) measurements, using vertical dipole mode, was used for fast conductivity mapping of cultivated areas in view of checking the efficiency of the drip-system and homogeneity of soil moisture distribution. Information on the local soil profile, valuable when interpreting the geophysical data, were obtained by direct observation, soil sampling and high resolution mapping of in-depth magnetic susceptibility variations. The soil specific characteristics on the Buzau county studied area have been established on a soil profile down to 1.6m depth, in a non-irrigated sector.

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Publication details

Title
GEOPHYSICAL MAPPING OF SOIL MOISTURE VARIATIONS IN CULTIVATED LAND. CASE STUDY: BUZAU COUNTY, ROMANIA
Authors
Dumitru Ioane
Proceedings
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 18th International Multidisciplinary Scientific GeoConference SGEM2018, Water Resources. Forest, Marine and Ocean Ecosystems
Publisher
STEF92 Technology
Year
2018
Pages
405-410
SWS Citekey
Ioane201813405410
ISSN
1314-2704
ISBN
978-619-7408-43-0
Language
en
Publication type
Conference Paper
Keywords
Soil geophysicsERT for precision agricultureEMI for moisture content mapping
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