Spectroscopy and Spectral Analysis, Volume. 40, Issue 10, 3277(2020)

Prediction of Soil Organic Matter Using Visible-Short Near-Infrared Imaging Spectroscopy

Cai-xia JIAO1...1,*, Guang-hui ZHENG1,1, Xian-li XIE1,1, Xue-feng CUI1,1, and Gang SHANG11 |Show fewer author(s)
Author Affiliations
  • 1[in Chinese]
  • 11. School of Geographic Sciences, Nanjing University of Information Science & Technology, Nanjing 210044, China
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    Figures & Tables(7)
    Location of samples
    Collection and preprocessing of imaging spectroscopy
    Scatter plot of SOM and DOA
    Relative frequency for determination coefficients of calibration and prediction
    • Table 1. Descriptive statistics of SOM content

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      Table 1. Descriptive statistics of SOM content

      NumberMin/(k·kg-1)Max/(k·kg-1)Mean/(k·kg-1)Std/(k·kg-1)CV/%
      全部样本2781.3952.568.727.6487.65
      堤东样本2361.3933.387.435.9980.63
      堤西样本422.4252.5615.9211.2270.46
    • Table 2. Statistics of DOA regression

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      Table 2. Statistics of DOA regression

      RMSEC/
      (k·kg-1)
      Rc2RMSEP/
      (k·kg-1)
      Rp2RPD
      Min4.100.284.460.021.02
      Max6.100.696.650.641.68
      Mean5.190.525.380.491.42
    • Table 3. Statistics of partial least square regression

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      Table 3. Statistics of partial least square regression

      RMSEC/
      (k·kg-1)
      Rc2RMSEP/
      (k·kg-1)
      Rp2RPD
      Min2.990.284.090.071.04
      Max7.170.817.580.621.62
      Mean5.220.525.750.431.33
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    Cai-xia JIAO, Guang-hui ZHENG, Xian-li XIE, Xue-feng CUI, Gang SHANG. Prediction of Soil Organic Matter Using Visible-Short Near-Infrared Imaging Spectroscopy[J]. Spectroscopy and Spectral Analysis, 2020, 40(10): 3277

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    Paper Information

    Category: Research Articles

    Received: Jul. 17, 2019

    Accepted: --

    Published Online: Jun. 18, 2021

    The Author Email: JIAO Cai-xia (JCX@nuist.edu.cn)

    DOI:10.3964/j.issn.1000-0593(2020)10-3277-05

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