An Integrated Field and Hyperspectral Remote Sensing Method for the Estimation of Pigments Content of Stipa Purpurea in Shenzha, Tibet

Table 4

Stepwise regression models of photosynthetic pigment in Stipa purpurea with enhanced spectral variables (with VIF = 35, is the coefficient of determination, is the value of distribution, and is the significant level).

Soil properties	Regression models		F	P
Chla		0.708	31.9	0.000
Chlb		0.623	48.36	0.000
Chls		0.644	12.79	0.000