高光谱反演耕地土壤质量评价元素含量方法研究

易孜芳, 周磊磊, 骆检兰, 曹里

A method for hyperspectral inversion of element contents for soil-quality evaluation of cultivated land

YI Zifang, ZHOU Leilei, LUO Jianlan, CAO Li

表4 PLSR模型估测结果

Tab.4 PLSR model estimation results

元素 光谱类型 PCC-PLSR CARS-PLSR 建模集 验证集 建模集 验证集 R2 RMSE R2 RMSE RPD R2 RMSE R2 RMSE RPD Cd YS 0.365 1.796 -0.441 1.692 0.862 0.439 1.087 -0.256 2.845 0.924 FD 0.704 1.198 -0.155 1.647 0.963 0.954 0.477 0.863 0.572 2.799 SD 0.811 0.699 0.236 2.407 1.184 0.965 0.423 0.557 0.878 1.555 LR 0.352 1.334 -0.024 2.619 1.023 0.357 1.287 0.150 2.564 1.122 CR 0.631 0.853 0.046 2.835 1.060 0.573 1.447 -0.306 1.763 0.906 As YS 0.832 1.277 0.615 1.932 1.669 0.779 1.528 0.648 1.410 1.746 FD 0.928 0.869 0.794 1.293 2.283 0.981 0.431 0.959 0.639 5.119 SD 0.906 0.955 0.741 1.537 2.033 0.985 0.397 0.870 1.159 2.870 LR 0.843 1.345 0.672 1.256 1.808 0.844 1.267 0.711 1.417 1.926 CR 0.828 1.373 0.733 1.363 2.005 0.880 1.120 0.748 1.369 2.061