Using Visible-Near Infrared Spectroscopy to Predict Soil Properties of Mugan Plain, Azerbaijan
Using Visible-Near Infrared Spectroscopy to Predict Soil Properties of Mugan Plain, Azerbaijan作者机构:Institute of Soil Science and Agrochemistry of National Academy of Science of Azerbaijan Baku Azerbaijan CREA-Council for Agricultural Research and Economics Florence Italy
出 版 物:《Open Journal of Soil Science》 (土壤科学期刊(英文))
年 卷 期:2016年第6卷第3期
页 面:52-58页
学科分类:09[农学] 0903[农学-农业资源与环境] 090301[农学-土壤学]
主 题:PLSR Prediction VIS-NIR Soil Reflectance Soil Properties
摘 要: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.