基于偏最小二乘的土壤重金属铜含量高光谱估算

贺军亮,崔军丽,张淑媛,李仁杰,查勇

Hyperspectral Estimation of Heavy Metal Cu Content in Soil based on Partial Least Square Method

Junliang He,Junli Cui,Shuyuan Zhang,Renjie Li,Yong Zha

表3 土壤重金属铜含量与光谱指标的最大相关系数

Table 3 The maximum correlation coefficients of soil heavy metal Cu content and spectral index

光谱变换指标 最大相关波段/nm 相关系数 R 418 -0.608** FD 446 -0.563** SD 2 221 -0.419** RT 427 0.551** AT 427 0.589** RTFD 490 -0.648** RTSD 1 909 -0.506** ATFD 673 -0.559** ATSD 1 920 -0.471** CR 435 -0.457**