Spectroscopy and Spectral Analysis, Volume. 42, Issue 7, 2278(2022)

Inversion of Leaf Area Index Based on GF-6 WFV Spectral Vegetation Index Model

Xiao-xuan WANG1,*... Xiao-ping LU1,1; *;, Qing-yan MENG2,2; 3;, Guo-qing LI4,4;, Jun WANG4,4;, Lin-lin ZHANG2,2; 3; and Ze-nan YANG1,1; |Show fewer author(s)
Author Affiliations
  • 11. Henan Polytechnic University, Key Laboratory of Spatio-Temporal Information and Ecological Restoration of Mines, Ministry of Natural Resources, Jiaozuo 454000, China
  • 22. Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100101, China
  • 44. Henan Institute of Remote Sensing and Geomatics, Zhengzhou 450000, China
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    Figures & Tables(8)
    Sampling sits of the experimental area
    Verification of spectral vegetation index model
    NDSI3 spectral vegetation index model inversion for LAI of corn at milk stage
    NDSI3 model validation
    Cross validation
    • Table 1. Remote sensing images of GF-6 WFV satellite

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      Table 1. Remote sensing images of GF-6 WFV satellite

      波段号波段范围
      /μm
      波段名称空间分辨
      率/m
      幅宽
      /km
      B010.45~0.52蓝波段16800
      B020.52~0.59绿波段
      B030.63~0.69红波段
      B040.77~0.89近红外波段
      B050.69~0.73红边1波段
      B060.73~0.77红边2波段
      B070.40~0.45紫边波段
      B080.59~0.63黄边波段
    • Table 2. Spectral vegetation indices

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      Table 2. Spectral vegetation indices

      光谱植被指数计算公式
      归一化差值植被指数NDVI=(P04-PR)/(P04+PR)
      归一化差值光谱指数1NDSI1=(P04-P05)/(P04+P05)
      归一化差值光谱指数2NDSI2=(P04-P06)/(P04+P06)
      归一化差值光谱指数3NDSI3=(P05-P06)/(P05+P06)
      增强植被指数EVI=2.5(P04-PR)/(P04+
      6PR-7.5PB+1)
      增强光谱指数1EVI=2.5(P04-P05)/(P04+
      6P05-7.5PB+1)
      增强光谱指数2EVI=2.5(P04-P06)/(P04+
      6P06-7.5PB+1)
      增强光谱指数3EVI=2.5(P05-P06)/(P05+
      6P06-7.5PB+1)
      抗大气植被指数ARVI=(P04-1.7PR+0.7PB)/
      (P04+1.7PR-0.7PB)
      抗大气光谱指数1ARVI=(P04-1.7P05+0.7PB)/
      (P04+1.7P05-0.7PB)
      抗大气光谱指数2ARVI=(P04-1.7P06+0.7PB)/
      (P04+1.7P06-0.7PB)
      抗大气光谱指数3ARVI=(P05-1.7P06+0.7PB)/
      (P05+1.7P06-0.7PB)
      土壤调节植被指数SAVI=(P04-PR)(1+L)/
      (P04+PR+L)
      土壤调节光谱指数1SAVI=(P04-P05)(1+L)/
      (P04+P05+L)
      土壤调节光谱指数2SAVI=(P04-P06)(1+L)/
      (P04+P06+L)
      土壤调节光谱指数3SAVI=(P05-P06)(1+L)/
      (P05+P06+L)
      土壤调节植被指数RVI=P04/PR
      土壤调节光谱指数1RVI=P04/P05
      土壤调节光谱指数2RVI=P04/P06
      土壤调节光谱指数3RVI=P05/P06
    • Table 3. Correlation coefficient types between spectral vegetation index and LAI of maize at milk stage

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      Table 3. Correlation coefficient types between spectral vegetation index and LAI of maize at milk stage

      光谱指数相关系数光谱指数相关系数
      NDVI0.532 6ESI20.587 2
      NDSI10.662 3ESI30.602 3
      NDSI20.653 6ARVI0.452 6
      NDSI30.881 0ARSI10.695 2
      RVI0.546 3ARSI20.602 3
      RSI10.701 2ARSI30.701 2
      RSI20.685 3SAVI0.482 3
      RSI30.632 3SAVI10.632 5
      EVI0.513 6SAVI20.542 3
      ESI10.592 5SAVI30.592 3
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    Xiao-xuan WANG, Xiao-ping LU, Qing-yan MENG, Guo-qing LI, Jun WANG, Lin-lin ZHANG, Ze-nan YANG. Inversion of Leaf Area Index Based on GF-6 WFV Spectral Vegetation Index Model[J]. Spectroscopy and Spectral Analysis, 2022, 42(7): 2278

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    Paper Information

    Category: Orginal Article

    Received: Oct. 20, 2020

    Accepted: --

    Published Online: Nov. 16, 2022

    The Author Email: WANG Xiao-xuan (1244377865@qq.com)

    DOI:10.3964/j.issn.1000-0593(2022)07-2278-06

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