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SPECTRAL CORRELATION OF LANDSAT IMAGE FOR SOME SOIL PROPERTIES IN DIYALA GOVERNORATE. | ||
| The Iraqi Journal of Agricultural Science | ||
| Article 1, Volume 43, Issue 1, 2013, Pages 102-112 | ||
| Author | ||
| Riadh K. A. Abdullatif | ||
| Abstract | ||
| Two movement transects were chosen to select 31 soil samples in Diyala province from different region. Samples where air dried, grinded and sieved for laboratory analysis for measuring physical and chemical characteristics of the soil .LandSat Images (ETM+7) were used and the selected sites were pointed on it, which were taken by Global Positioning System according to listed Axis, to get the spectral print. Statistical analysis (correlation matrix) was done, using (spss) to explore the relationship between the two characteristics. Results showed a relationship between soil salinity and its organic relationship with the digital number of the spectral bands and the presence of wide variation of soil salinity values with the values of soil reaction in different way between samples as well as Clay content. And found difference in the value of sand content and clay and the presence of difference texture while the statistical analysis shows a correlation between characteristic among them. where there was a correlation between the values of soil salinity and the numerical number or some bands ,as well as to the content of sand and clay and highly positive correlation between sand and the content of organic matter while there was a negative correlation between the CaCO3 and sand content and even the non-sigificant value showed general direction between the measured soil characteristic and the digital number for the spectral band negatively with the sand positively or calcium carbonate and clay for all bands , also the relationship it was negative with CaCo3 content with digital number where the increase of content cause increase in the reflection .Thus, remote sensing techniques gave significant result in its applications in agriculture and its relationship with certain soil characteristics. | ||
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