Table S1. Adjusted R2 and RMSE values of four nonlinear models to estimate response of soil respiration(Rs) to soil temperature(Ts) and of two nonlinear models to estimate responses of normalized soil respiration(Rs_normalized, the ratio of measured Rs to estimated Rs from Ts) to volumetric soil water content(Ɵ) at an approximately 57-year old Korean pine plantation on the Mt. Taehwa Seoul National University Forest, Gyeonggi-do, Republic of Korea.

Response	van’t Hoff equation^a		Arrhenius equation^b		Lloyd and Taylor equation^c		Ratkowsky et al. equation^d
Response	R_adj²	RMSE	R_adj²	RMSE	R_adj²	RMSE	R_adj²	RMSE
T_s - R_s	0.7926	0.0198	0.7940	0.0197	0.7967	0.0195	0.7969	0.0195
Response	Doran et al. equation^e		Mielnick and Dugas equation^f
Response	R_adj²	RMSE	R_adj²	RMSE
Ɵ - R_{s_normalized}	0.5296	0.2641	0.5019	0.2792

van’t Hoff (1884) equation : R = ae^bT
Arrhenius (1889) equation : R = ae^{{b/R*[1/(Tref+273)-1/(T+273)]}}
Lloyd and Taylor (1994) equation : R = ae^{{b[1/(Tref+46.02)-1/(T+46.02)]}}
Ratkowsky et al. (1982) equation : R = (T – T_min)²/(T_ref – T_min)²
Doran et al. (1990) equation : R = aƟ² + bƟ + c
Mielnick and Dugas (2000) equation : R = a(Ɵ - Ɵ_min)(Ɵ_max - Ɵ)^b