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- Title
Determination of Soil Organic Carbon Levels Using Near Infrared Spectroscopy (NIRS) in Saline Soils.
- Authors
YORULMAZ, Alper; AYDIN, Gönül; ATATANIR, Levent
- Abstract
Due to the global climate change, salinity is in arid and semi-arid climates a major problem for the soils. In this connection it is very important to determine the organic carbon content in saline soils. This is aimed at the study that prediction of the organic carbon content in saline soils using NIRS and to evaluate the success of near infrared reflection spectroscopy (NIRS). NIRS device of 116 soil samples from different levels of soil salinity were collected between (350-2500 nm). Partial Least Square (PLS) regression analysis was used to conclude between the results obtained from the reflection values and traditional analyses methods at the laboratoary. NIRS calibrations were developed with modified partial least square regression and tested with independent validation samples. The best equations were obtained with the first derivative of the spectra without scatter corrections. The results obtained from the experiment concluded that soils of resource area texture, organic matter, CaCO3 and salinity are affects on the reflection values. Good predictions were obtained for organic carbon contents in salt effected soils. According to the results obtained from the study, NIRS could be used as a practical and economic technique to predict organic carbon contents in salt effected soils.
- Subjects
CARBON in soils; SOIL texture; SOIL salinity; NEAR infrared spectroscopy; REGRESSION analysis
- Publication
Journal of Adnan Menderes University, Agricultural Faculty, 2017, Vol 14, Issue 2, p29
- ISSN
1304-7787
- Publication type
Article
- DOI
10.25308/aduziraat.310537