• Spectroscopy and Spectral Analysis
  • Vol. 41, Issue 8, 2409 (2021)
Lu XU*;, Hui WANG, Si-yi QIU, Jing-wen LIAN, and Li-juan WANG
Author Affiliations
  • School of Geography, Geomatics and Planning, Jiangsu Normal University, Xuzhou 221116, China
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    DOI: 10.3964/j.issn.1000-0593(2021)08-2409-06 Cite this Article
    Lu XU, Hui WANG, Si-yi QIU, Jing-wen LIAN, Li-juan WANG. Coastal Soil Salinity Estimation Based Digital Images and Color Space Conversion[J]. Spectroscopy and Spectral Analysis, 2021, 41(8): 2409 Copy Citation Text show less
    Study area and sampling points distribution
    Fig. 1. Study area and sampling points distribution
    Sampling time and mean brightness of sampling points
    Fig. 2. Sampling time and mean brightness of sampling points
    Color space transformations
    Fig. 3. Color space transformations
    Correlation coefficient between EC and parameters in various color spaces× means the non-significant correlation
    Fig. 4. Correlation coefficient between EC and parameters in various color spaces
    × means the non-significant correlation
    Scatter diagram of observed and predicted EC
    Fig. 5. Scatter diagram of observed and predicted EC
    The importance of variables in different color spaces
    Fig. 6. The importance of variables in different color spaces
    最小值中值均值最大值标准差变异
    系数
    土壤含水量4.0618.3318.5743.887.690.41
    pH值6.597.167.228.650.440.06
    土壤电导率0.1720.4518.4431.959.130.5
    Table 1. Summary of soil physical and chemical properties
    Lu XU, Hui WANG, Si-yi QIU, Jing-wen LIAN, Li-juan WANG. Coastal Soil Salinity Estimation Based Digital Images and Color Space Conversion[J]. Spectroscopy and Spectral Analysis, 2021, 41(8): 2409
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