Online measurement of soil organic carbon as correlated with wheat normalised difference vegetation index in a vertisol field

dc.contributor.authorTekin, YĆ¼cel
dc.contributor.authorUlusoy, Yahya
dc.contributor.authorTumsavas, Zeynal
dc.contributor.authorMouazen, Abdul Mounem
dc.date.accessioned2016-03-09T10:28:01Z
dc.date.available2016-03-09T10:28:01Z
dc.date.issued2014-07-03
dc.description.abstractThis study explores the potential of visible and near infrared (vis-NIR) spectroscopy for onlinemeasurement of soil organic carbon (SOC). It also attempts to explore correlations and similarities between the spatial distribution of SOC and normalized differential vegetation index (NDVI) of a wheat crop. The online measurement was carried out in a clay vertisol field covering 10 ha of area in Karacabey, Bursa, Turkey. Kappa statistics were carried out between different SOC and NDVI data to investigate potential similarities. Calibration model of SOC in full cross-validationresulted in a good accuracy ( 2 = 0.75, root mean squares error of prediction (RMSEP) = 0.17%, and ratio of prediction deviation (RPD) = 1.81). The validation of the calibration model using laboratory spectra provided comparatively better prediction accuracy ( 2 = 0.70, RMSEP = 0.15%, and RPD = 1.78), as compared to the online measured spectra ( 2 = 0.60, RMSEP = 0.20%, and RPD = 1.41). Although visual similarity was clear, low similarity indicated by a lowKappa value of 0.259 was observed between the online vis-NIR predicted full-point (based on all pointsmeasured in the field, e.g., 6486 points)map of SOC and NDVI map.en_UK
dc.identifier.citationY Tekin, Y Ulusoy, Z TĆ¼msavaş, AM Mouazen AM, Online measurement of soil organic carbon as correlated with wheat normalised difference vegetation index in a vertisol field. The Scientific World Journal, Volume 2014 (2014), Article ID 569057en_UK
dc.identifier.issn2356-6140
dc.identifier.urihttp://dx.doi.org/10.1155/2014/569057
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/9764
dc.language.isoenen_UK
dc.publisherHindawi Publishing Corporationen_UK
dc.rightsCopyright Ā© 2014 YĆ¼cel Tekin et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Attribution 3.0 Unported (CC BY 3.0). You are free to: Share ā€” copy and redistribute the material in any medium or format Adapt ā€” remix, transform, and build upon the material for any purpose, even commercially. The licensor cannot revoke these freedoms as long as you follow the license terms. Under the following terms: Attribution ā€” You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. Information: No additional restrictions ā€” You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
dc.titleOnline measurement of soil organic carbon as correlated with wheat normalised difference vegetation index in a vertisol fielden_UK
dc.typeArticleen_UK

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