无人机多光谱反演黄河口重度盐渍土盐分的研究
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王丹阳,陈红艳,王桂峰,丛津桥,王向锋,魏学文
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Salinity Inversion of Severe Saline Soil in the Yellow River Estuary Based on UAV Multi-Spectra
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WANG DanYang,CHEN HongYan,WANG GuiFeng,CONG JinQiao,WANG XiangFeng,WEI XueWen
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表4 试验区土壤盐分等级及其比例
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Table 4 Soil salinity grades and its proportions in the experimental area
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等级
Grade | 反演图Inversion map | 插值图 Interpolation map | 像元数
Pixel count | 所占比例
Percentage (%) | 像元数
Pixel count | 所占比例
Percentage (%) | | 非盐渍土Non-saline soil (<2.0 g·kg-1) | 3027962 | 7.640 | 1025934 | 2.476 | | 轻度盐渍土Mild saline soil (≥2.0-4.0 g·kg-1) | 1928771 | 4.871 | 7327621 | 17.691 | | 中度盐渍土Moderate saline soil (≥4.0-6.0g·kg-1) | 10091297 | 25.473 | 11092173 | 26.779 | | 重度盐渍土Severe saline soil (≥6.0-10.0 g·kg-1) | 23018069 | 58.094 | 20015014 | 48.321 | | 盐土Solonchak (≥10.0 g·kg-1) | 1558977 | 3.932 | 1959849 | 4.731 |
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