Online Measurement of Soil Organic Carbon as Correlated with Wheat Normalised Difference Vegetation Index in a Vertisol Field
This study explores the potential of visible and near infrared (vis-NIR) spectroscopy for online measurement 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...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2014/569057 |
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| _version_ | 1832549130511056896 |
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| author | Yücel Tekin Yahya Ulusoy Zeynal Tümsavaş Abdul M. Mouazen |
| author_facet | Yücel Tekin Yahya Ulusoy Zeynal Tümsavaş Abdul M. Mouazen |
| author_sort | Yücel Tekin |
| collection | DOAJ |
| description | This study explores the potential of visible and near infrared (vis-NIR) spectroscopy for online measurement 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 (R2=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 (R2=0.70, RMSEP = 0.15%, and RPD = 1.78), as compared to the online measured spectra (R2=0.60, RMSEP = 0.20%, and RPD = 1.41). Although visual similarity was clear, low similarity indicated by a low Kappa value of 0.259 was observed between the online vis-NIR predicted full-point (based on all points measured in the field, e.g., 6486 points) map of SOC and NDVI map. |
| format | Article |
| id | doaj-art-e401c36b091844d28f77f417cedc4760 |
| institution | Kabale University |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-e401c36b091844d28f77f417cedc47602025-02-03T06:12:07ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/569057569057Online Measurement of Soil Organic Carbon as Correlated with Wheat Normalised Difference Vegetation Index in a Vertisol FieldYücel Tekin0Yahya Ulusoy1Zeynal Tümsavaş2Abdul M. Mouazen3Vocational School of Technical Science, Uludag University, 16059 Bursa, TurkeyVocational School of Technical Science, Uludag University, 16059 Bursa, TurkeyAgricultural Faculty, Uludag University, 16059 Bursa, TurkeyEnvironmental Science and Technology Department, Cranfield University, Bedfordshire MK43 0AL, UKThis study explores the potential of visible and near infrared (vis-NIR) spectroscopy for online measurement 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 (R2=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 (R2=0.70, RMSEP = 0.15%, and RPD = 1.78), as compared to the online measured spectra (R2=0.60, RMSEP = 0.20%, and RPD = 1.41). Although visual similarity was clear, low similarity indicated by a low Kappa value of 0.259 was observed between the online vis-NIR predicted full-point (based on all points measured in the field, e.g., 6486 points) map of SOC and NDVI map.http://dx.doi.org/10.1155/2014/569057 |
| spellingShingle | Yücel Tekin Yahya Ulusoy Zeynal Tümsavaş Abdul M. Mouazen Online Measurement of Soil Organic Carbon as Correlated with Wheat Normalised Difference Vegetation Index in a Vertisol Field The Scientific World Journal |
| title | Online Measurement of Soil Organic Carbon as Correlated with Wheat Normalised Difference Vegetation Index in a Vertisol Field |
| title_full | Online Measurement of Soil Organic Carbon as Correlated with Wheat Normalised Difference Vegetation Index in a Vertisol Field |
| title_fullStr | Online Measurement of Soil Organic Carbon as Correlated with Wheat Normalised Difference Vegetation Index in a Vertisol Field |
| title_full_unstemmed | Online Measurement of Soil Organic Carbon as Correlated with Wheat Normalised Difference Vegetation Index in a Vertisol Field |
| title_short | Online Measurement of Soil Organic Carbon as Correlated with Wheat Normalised Difference Vegetation Index in a Vertisol Field |
| title_sort | online measurement of soil organic carbon as correlated with wheat normalised difference vegetation index in a vertisol field |
| url | http://dx.doi.org/10.1155/2014/569057 |
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