Establishing soil electrical conductivity ‐ Depth relations from electromagnetic induction measurements
作者:
D. L. Corwin,
J. D. Rhoades,
期刊:
Communications in Soil Science and Plant Analysis
(Taylor Available online 1990)
卷期:
Volume 21,
issue 11-12
页码: 861-901
ISSN:0010-3624
年代: 1990
DOI:10.1080/00103629009368275
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Principles of electromagnetic induction (EM) and field calibration approaches are discussed as they pertain to the application of EM to soil systems for the purpose of deriving soil electrical conductivity ‐ depth relations. Evidence is provided to support the utility of EM‐derived estimates of ECa‐depth relations. Limitations of using electromagnetic induction to determine ECafor discrete depth intervals through the soil are discussed. Current research designed to increase the accuracy of ECa‐depth determinations by dealing with the spatial variability problem associated with salinity in soil and by mitigating some of the inherent limitations of the calibration approaches is described.
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