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5 PSO-RFR模型估测结果

Tab.5 PSO-RFR model estimation results

元素 光谱类型 PCC-PSO-RFR CARS-PSO-RFR 建模集 验证集 建模集 验证集 R2 RMSE R2 RMSE RPD R2 RMSE R2 RMSE RPD Cd YS 0.812 0.977 -1.351 2.162 0.654 0.727 0.759 -0.219 2.804 0.994 FD 0.882 0.757 -0.042 1.564 0.985 0.831 0.912 0.066 1.494 1.039 SD 0.819 0.684 0.323 2.265 1.216 0.858 0.857 0.083 1.264 1.044 LR 0.821 0.701 -0.100 2.714 1.008 0.838 0.646 0.094 2.647 1.051 CR 0.915 0.408 0.230 2.548 1.178 0.836 0.897 -0.511 1.896 0.962 As YS 0.882 1.071 0.586 2.003 1.568 0.863 1.205 -0.205 2.610 1.202 FD 0.909 0.980 0.833 1.164 2.542 0.947 0.722 0.732 1.635 1.968 SD 0.944 0.738 0.554 2.017 1.568 0.936 0.815 0.383 2.523 1.277 LR 0.927 0.921 0.666 1.267 1.819 0.924 0.887 0.559 1.751 1.518 CR 0.948 0.756 0.165 2.412 1.095 0.908 0.983 0.678 1.547 1.762