GWR模型在土壤重金属高光谱预测中的应用

江振蓝, 杨玉盛, 沙晋明

Application of GWR model in hyperspectral prediction of soil heavy metals

Zhenlan JIANG, Yusheng YANG, Jinming SHA

表3 利用光谱变量对福州市土壤重金属进行逐步线性回归的结果

Tab. 3 Results of stepwise linear regression between soil heavy metals and spectral variances in Fuzhou City

重金属 模型变量 调节R2 估计误差 F 显著性水平 Cd 常量, SD_1990, RT_1040 0.179 0.343 15.413 0.000 Cu 常量, FD_470, RT_380, RTSD_450 0.300 12.442 19.658 0.000 Pb 常量, FD_2490, SD_1940, RTSD_2490, CR_1630 0.141 22.430 7.781 0.000 Cr 常量, SD_1440, RTSD_430 0.226 15.685 20.170 0.000 Zn 常量, RT_2150, RTFD_1050 0.312 45.235 30.706 0.000 Ni 常量, RT_2470, RTFD_480 0.180 7.874 15.427 0.000