TITLE:
Using Visible-Near Infrared Spectroscopy to Predict Soil Properties of Mugan Plain, Azerbaijan
AUTHORS:
Fikrat Feyziyev, Maharram Babayev, Simone Priori, Giovanni L’Abate
KEYWORDS:
PLSR, Prediction, VIS-NIR, Soil Reflectance, Soil Properties
JOURNAL NAME:
Open Journal of Soil Science,
Vol.6 No.3,
March
31,
2016
ABSTRACT: The potential ability of the Vis-NIR (350 - 2500 nm) laboratory
spectroscopy for prediction of soil properties has been demonstrated in the
literature. The aim of this work was to predict different soil properties of
soils collected in Mugan plain (Azerbaijan) using PLSR models and cross-validation. Carbonatation and salinisation are the main pedogenetic processes in
Muganplain, therefore there is a need to monitor total carbonates and soil
electrical conductivity (EC). The result of work was positive and both total
carbonates and EC showed the best result (SE = 2.90, R2-0.90 and
SE-0.09, R2-0.82, respectively). This parameter using PLSR, SOM
(SE-0.54, R2-0.83), CEC (SE-0.43, R2-0.62), and Total P
(SE-0.50, R2-0.73) is predicted and result is over optimist. Total N
(SE-0.04, R2-0.44), and pH (SE-0.02, R2-0.51)
demonstrated low prediction quality.