Table 4.

The collection between measured and estimated SM in four groups with respect to the $\Delta T$ values.

Study Area	$\mathbf{\Delta }\mathit{T}$ (°C)	3.5 ≤ $\mathbf{\Delta }\mathit{T}$	3.5 < $\mathbf{\Delta }\mathit{T}$ ≤ 6.5	6.5 < $\mathbf{\Delta }\mathit{T}$ ≤ 9.0	9.0 < $\mathbf{\Delta }\mathit{T}$
Henan	r	0.6657	0.5891	0.5715	0.6082
Study area	$\mathbf{\Delta }\mathit{T}$ (°C)	3.0 ≤ $\mathbf{\Delta }\mathit{T}$	3.0 < $\mathbf{\Delta }\mathit{T}$ ≤ 7.0	7.0 < $\mathbf{\Delta }\mathit{T}$ ≤ 9.5	9.5 < $\mathbf{\Delta }\mathit{T}$
Naqu	r	0.6828	0.7726	0.7434	0.6792