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Effect of structure on bulk soil electrical conductivity (ECa) using the TDR and 4P techniques
Year:
1991
Source of publication :
Soil Science
Authors :
Nadler, Arie
;
.
Volume :
152
Co-Authors:
Facilitators :
From page:
199
To page:
203
(
Total pages:
5
)
Abstract:

Bulk soil electrical conductivity (ECa) was measured in one weak-structured and three naturally well-structured soils under undisturbed conditions and after structure disruption. Two structure-disruption procedures of increasing severity were used. Bulk soil electrical conductivity was measured by two independent techniques, electromagnetic induction and four-electrode probe, and showed a close similarity between undisturbed and disturbed samples as long as soils were repacked to the original field density. The minimal effect of structure disruption on bulk soil electrical conductivity as determined by electromagnetic induction was expected because measurement by this technique is based on an electromagnetic pulse signal interacting with the electric field of the ions in the soil solution and not on direct contact. These findings may reduce time, inconvenience, and expense in obtaining calibration curves for bulk soil–soil solution electrical conductivity needed for determining soil salinity.

Note:
Related Files :
Electric conductivity measurement
soil
SOIL ELECTRICAL CONDUCTIVITY
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More details
DOI :
Article number:
0
Affiliations:
Database:
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
50603
Last updated date:
02/03/2022 17:27
Creation date:
30/09/2020 11:29
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Effect of structure on bulk soil electrical conductivity (ECa) using the TDR and 4P techniques
152
Effect of structure on bulk soil electrical conductivity (ECa) using the TDR and 4P techniques

Bulk soil electrical conductivity (ECa) was measured in one weak-structured and three naturally well-structured soils under undisturbed conditions and after structure disruption. Two structure-disruption procedures of increasing severity were used. Bulk soil electrical conductivity was measured by two independent techniques, electromagnetic induction and four-electrode probe, and showed a close similarity between undisturbed and disturbed samples as long as soils were repacked to the original field density. The minimal effect of structure disruption on bulk soil electrical conductivity as determined by electromagnetic induction was expected because measurement by this technique is based on an electromagnetic pulse signal interacting with the electric field of the ions in the soil solution and not on direct contact. These findings may reduce time, inconvenience, and expense in obtaining calibration curves for bulk soil–soil solution electrical conductivity needed for determining soil salinity.

Scientific Publication
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