Analysis of soil phosphorus concentration based on Raman spectroscopy

Lihua Zheng; Won Suk Lee; Minzan Li; Anurag Katti; Ce Yang; Han Li; Hong Sun

doi:10.1117/12.977436

9 November 2012 Analysis of soil phosphorus concentration based on Raman spectroscopy

Lihua Zheng; Won Suk Lee; Minzan Li; Anurag Katti; Ce Yang; Han Li; Hong Sun

Author Affiliations +

Proceedings Volume 8527, Multispectral, Hyperspectral, and Ultraspectral Remote Sensing Technology, Techniques and Applications IV; 852718 (2012) https://doi.org/10.1117/12.977436
Event: SPIE Asia-Pacific Remote Sensing, 2012, Kyoto, Japan

Abstract

Raman spectra signature can provide structural information based on vibrational transitions of irradiated molecules. In this work, the quantity reflecting mechanism of soil phosphorus concentration was studied based on Raman spectroscopy. 15 sand soil samples with different phosphate content were made in laboratory and the Raman signatures were measured. The relationship between sand soil Phosphorus concentration and soil Raman spectra was explored. Then the effective Raman signal was extracted from the original Raman spectra by using bior4.4 wavelet packet. The relationship between sand soil phosphorus and their extracted signals was analyzed and the PLS (Partial Least Squares) model for predicting phosphorus concentration in the soil was established and compared. The maximum accuracy model comes from the extracted effective Raman spectra after the first level decomposing. The calibration R² was close to 1 and the validation R² reached to 0.937. It showed high potential in soil phosphorus detecting by using Raman spectroscopy.

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Lihua Zheng, Lihua Zheng, Won Suk Lee, Won Suk Lee, Minzan Li, Minzan Li, Anurag Katti, Anurag Katti, Ce Yang, Ce Yang, Han Li, Han Li, Hong Sun, Hong Sun, } "Analysis of soil phosphorus concentration based on Raman spectroscopy", Proc. SPIE 8527, Multispectral, Hyperspectral, and Ultraspectral Remote Sensing Technology, Techniques and Applications IV, 852718 (9 November 2012); doi: 10.1117/12.977436; https://doi.org/10.1117/12.977436

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