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Electromagnetic induction as a basis for soil salinity monitoring within a Mediterranean irrigation district

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Title: Electromagnetic induction as a basis for soil salinity monitoring within a Mediterranean irrigation district
Authors: Herrero, J.1 jhi@eead.csic.es, Netthisinghe, A.2, Hudnall, W.H.2, Pérez-Coveta, O.1
Source: Journal of Hydrology. Aug2011, Vol. 405 Issue 3/4, p427-438. 12p.
Subjects: Electromagnetic induction, Soil salinity, Irrigation districts, Salinity, Saltwater encroachment, Water quality, Agricultural productivity
Geographic Terms: Mediterranean Region
Abstract: Summary: Soil salinity encroachment is an increasing concern in many irrigated lands, because of the undesirable effects of soluble salts on agricultural production and on water quality. From this point of view, the design and management of irrigation districts can be evaluated by monitoring the soil salinity. There are few cases in the world where comparisons can be undertaken from ‘historic’ data sets for extents other than individual plots. We demonstrate a monitoring procedure using electromagnetic induction (EMI) survey in an irrigated district in Spain. This district is the only one having an established soil salinity baseline. The EMI data acquired at the same plots were converted to soil electrical conductivity by calibrating with augered soil samples. The presented calibrations improve the baseline for future comparisons and for the treatment and understanding of new acquisitions of field data in next surveys. A shortcoming inherent to destructive soil sampling is its potential for biasing effects on long-term monitoring of soil salinity by means of GPS or other means of accurate localization and relocalization of soil sampling, the herein called “localization paradox”, rarely treated in scientific papers. The localization paradox is relevant for any variable soil property requiring repeated sampling. This issue is discussed, and a way for its overcoming by using EMI readings displaced from the augering is presented. EMI needs calibration with a reduced number of soil samples analyzed in the lab. The adoption of our data treatment procedures will facilitate soil salinity monitoring. [Copyright &y& Elsevier]
Copyright of Journal of Hydrology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 62846832
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Electromagnetic induction as a basis for soil salinity monitoring within a Mediterranean irrigation district
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  Data: <searchLink fieldCode="AR" term="%22Herrero%2C+J%2E%22">Herrero, J.</searchLink><relatesTo>1</relatesTo><i> jhi@eead.csic.es</i><br /><searchLink fieldCode="AR" term="%22Netthisinghe%2C+A%2E%22">Netthisinghe, A.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Hudnall%2C+W%2EH%2E%22">Hudnall, W.H.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Pérez-Coveta%2C+O%2E%22">Pérez-Coveta, O.</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Hydrology%22">Journal of Hydrology</searchLink>. Aug2011, Vol. 405 Issue 3/4, p427-438. 12p.
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  Data: <searchLink fieldCode="DE" term="%22Electromagnetic+induction%22">Electromagnetic induction</searchLink><br /><searchLink fieldCode="DE" term="%22Soil+salinity%22">Soil salinity</searchLink><br /><searchLink fieldCode="DE" term="%22Irrigation+districts%22">Irrigation districts</searchLink><br /><searchLink fieldCode="DE" term="%22Salinity%22">Salinity</searchLink><br /><searchLink fieldCode="DE" term="%22Saltwater+encroachment%22">Saltwater encroachment</searchLink><br /><searchLink fieldCode="DE" term="%22Water+quality%22">Water quality</searchLink><br /><searchLink fieldCode="DE" term="%22Agricultural+productivity%22">Agricultural productivity</searchLink>
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  Data: <searchLink fieldCode="DE" term="%22Mediterranean+Region%22">Mediterranean Region</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: Summary: Soil salinity encroachment is an increasing concern in many irrigated lands, because of the undesirable effects of soluble salts on agricultural production and on water quality. From this point of view, the design and management of irrigation districts can be evaluated by monitoring the soil salinity. There are few cases in the world where comparisons can be undertaken from ‘historic’ data sets for extents other than individual plots. We demonstrate a monitoring procedure using electromagnetic induction (EMI) survey in an irrigated district in Spain. This district is the only one having an established soil salinity baseline. The EMI data acquired at the same plots were converted to soil electrical conductivity by calibrating with augered soil samples. The presented calibrations improve the baseline for future comparisons and for the treatment and understanding of new acquisitions of field data in next surveys. A shortcoming inherent to destructive soil sampling is its potential for biasing effects on long-term monitoring of soil salinity by means of GPS or other means of accurate localization and relocalization of soil sampling, the herein called “localization paradox”, rarely treated in scientific papers. The localization paradox is relevant for any variable soil property requiring repeated sampling. This issue is discussed, and a way for its overcoming by using EMI readings displaced from the augering is presented. EMI needs calibration with a reduced number of soil samples analyzed in the lab. The adoption of our data treatment procedures will facilitate soil salinity monitoring. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Hydrology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.jhydrol.2011.05.041
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 12
        StartPage: 427
    Subjects:
      – SubjectFull: Electromagnetic induction
        Type: general
      – SubjectFull: Soil salinity
        Type: general
      – SubjectFull: Irrigation districts
        Type: general
      – SubjectFull: Salinity
        Type: general
      – SubjectFull: Saltwater encroachment
        Type: general
      – SubjectFull: Water quality
        Type: general
      – SubjectFull: Agricultural productivity
        Type: general
      – SubjectFull: Mediterranean Region
        Type: general
    Titles:
      – TitleFull: Electromagnetic induction as a basis for soil salinity monitoring within a Mediterranean irrigation district
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            NameFull: Herrero, J.
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            NameFull: Netthisinghe, A.
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            NameFull: Hudnall, W.H.
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            NameFull: Pérez-Coveta, O.
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              Text: Aug2011
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              Y: 2011
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