苹果叶片氮含量高光谱反演方法对比

杨福芹,冯海宽,李振海,潘洁晨,谢瑞

Comparison of Hyperspectral Remote Sensing Inversion Methods for Apple Leaf Nitrogen Content

Fuqin Yang,Haikuan Feng,Zhenhai Li,Jiechen Pan,Rui Xie

表3 基于原始光谱指数的叶片氮含量预测模型及验证

Table 3 Modeling and verification of leaf nitrogen content based on original spectrum

光谱指数 回归方程 建模(n=180) 验证(n=297) R2 RMSE RE/% R2 RMSE RE/% R553 y=23.505x+0.650 5 0.58 0.39 10.80 0.03 0.45 13.89 R724 y=15.766x-2.512 2 0.68 0.34 9.26 0.18 0.40 11.68