Study on the Evaluation Method of Subgrade Slope Green Protection Effect in Dry-Hot Valley of Sichuan-Tibet Railway

Table 4

Eigenvalue of standard evaluation levels.

Eigenvalue	Excellent	Good	General	Poor	Very poor
Ex^0	0.8976	0.7790	0.6667	0.5392	0.3985
En^0	0.0608	0.0475	0.0550	0.0617	0.0708
He^0	0.0062548	0.0063105	0.0062621	0.0062986	0.0062808