土壤有机质含量地面高光谱估测模型对比分析

王永敏, 李西灿, 田林亚, 贾斌, 杨惠

Comparison and analysis of estimation models of soil organic matter content established by hyperspectral on ground

Yongmin WANG, Xican LI, Linya TIAN, Bin JIA, Hui YANG

表3 27种估测模型检验样本集结果统计

Tab.3 27 hyperspectral estimation models’ results of test samples

参数 方法 SQ RE EXP LOG ES LS DE1 LGD1 EXD1 均值 R2 BP 0.811 0.807 0.885 0.812 0.828 0.933 0.852 0.839 0.841 0.845 MLR 0.778 0.804 0.835 0.731 0.859 0.879 0.792 0.845 0.786 0.812 LSR 0.815 0.797 0.871 0.826 0.833 0.887 0.861 0.847 0.802 0.839 RMSE BP 0.114 0.117 0.081 0.110 0.102 0.069 0.092 0.107 0.105 0.099 MLR 0.122 0.121 0.099 0.131 0.093 0.092 0.118 0.121 0.123 0.113 LSR 0.119 0.125 0.097 0.114 0.115 0.085 0.084 0.092 0.114 0.105 sig BP 0.015 0.019 0.001 0.011 0.006 0.00 0.003 0.013 0.007 0.008 MLR 0.027 0.031 0.033 0.042 0.002 0.001 0.013 0.006 0.035 0.021 LSR 0.019 0.028 0.001 0.021 0.005 0.001 0.002 0.007 0.016 0.011