Table 2.

Regional component contribution analysis.

Model Variant	RMSE	MAE	$R^2$	$\Delta R^2$	RMSE	MAE	$R^2$	$\Delta R^2$
	Northern China				Southern China
FALSTM (Baseline)	0.0789	0.0567	0.6234	–	0.1187	0.0834	0.4987	–
AFD-FALSTM	0.0745	0.0512	0.6789	0.0555	0.1123	0.0789	0.5456	0.0469
SHAP-FALSTM	0.0723	0.0489	0.6923	0.0689	0.1089	0.0756	0.5623	0.0636
FaXNet (Proposed)	0.0698	0.0411	0.7239	0.1005	0.0889	0.0616	0.6778	0.1791