绿洲城市土壤砷含量高光谱估算

钟晴, 麦麦提吐尔逊·艾则孜, 米热古力·艾尼瓦尔, 郝海宇

Hyperspectral inversion of arsenic content in soil in an oasis city

ZHONG Qing, MAMATTURSUN Eziz, MIREGULI Ainiwaer, HAO Haiyu

表2 反演模型精度参数统计

Tab.2 Statistics of precision parameter of inversion model

光谱变换 RFR PLSR SVMR R2 RMSE/ (mg·kg-1) MAE/ (mg·kg-1) R2 RMSE/ (mg·kg-1) MAE/ (mg·kg-1) R2 RMSE/ (mg·kg-1) MAE/ (mg·kg-1) R① 0.604 0.280 0.802 0.555 0.240 0.798 0.697 0.107 0.894 FD 0.644 0.134 0.748 0.646 0.159 0.832 0.459 0.031 1.008 SD 0.678 0.230 0.652 0.653 0.170 0.807 0.231 0.029 1.051 RTFD 0.575 0.130 0.780 0.646 0.157 0.829 0.614 0.034 0.968 RTSD 0.626 0.183 0.739 0.632 0.168 0.828 0.277 0.031 1.040 LTFD 0.626 0.163 0.768 0.657 0.163 0.819 0.585 0.036 0.982 LTSD 0.669 0.208 0.692 0.623 0.165 0.843 0.177 0.029 1.059 RMSFD 0.641 0.121 0.769 0.646 0.163 0.828 0.541 0.036 0.991 RMSSD 0.821 0.143 0.523 0.588 0.181 0.852 0.252 0.031 1.049 ATFD 0.605 0.168 0.775 0.657 0.163 0.819 0.585 0.036 0.982 ATSD 0.679 0.219 0.720 0.623 0.165 0.843 0.177 0.029 1.059 RLFD 0.591 0.154 0.777 0.556 0.280 0.804 0.334 0.031 1.037 RLSD 0.710 0.219 0.680 0.498 0.208 0.886 0.209 0.031 1.054