Near-Infrared Spectroscopic Measurement of Organic Matter in Soil
Near-infrared (NIR) spectroscopy was successfully applied to chemical free and rapid determination of the organic matter in soil,and moving window partial least square (MWPLS)combining with Savitzky-Golay (SG) smoothing was used to the selection of NIR waveband.Thirty-five samples were randomly selected from all 97 collected soil samples as the validation set.The remaining 62 samples were divided into similar modeling calibration set (37 samples) and modeling prediction set (25 samples) based on partial least square cross-validation predictive bias (PLSPB).The selected waveband was 1896 nm to 2138 nm; the SG smoothing parameters and PLS factor OD,DP,NSP and F were 2,6,71 and 15,respectively; the modeling effect M-SEP and M-Rp were 0.219% and 0.944,respectively; the validating effect V-SEP and V-Rp were 0.243% and 0.878,respectively.The result provided a reliable NIR model and valuable references for designing specialized NIR instruments.
Soil organic matter NIR waveband selection
Tao Pan Zhentao Wu Jiemei Chen
Key Laboratory of Optoelectronic Information and Sensing Technologies of Guangdong Higher Educational Institutes, Jinan University, Guangzhou 510632, PR China
国际会议
杭州
英文
414-418
2012-03-23（万方平台首次上网日期，不代表论文的发表时间）