Table 2 Results of mixed-effects models with warming (W), soil depth (D), and season (S; for seasonal data) as fixed factors, block and warming duration as random factors, including interactive effects between main factors (seasonal data: n = 72; non-seasonal data: n = 24)

Parameter	Treatment				Interaction (Sig. level)
Parameter	log response ratio	F value	p value	Sig. level	W x D	W x S	W x D x S
pH (H₂O)	−0.029	71.925	<0.001	***	-	-	-
Soil water content	−0.085	25.039	<0.001	***	-	-	-
Potential activity of acid phosphatase	0.095	11.453	0.001	**	-	*	-
Total soil P	−0.113	37.556	<0.001	***	-	-	-
Total soil inorganic P	−0.082	29.344	<0.001	***	-	-	-
Total soil organic P	−0.112	34.439	<0.001	***	-	-	-
Olsen P	0.007	0.049	0.826	-	-	*	-
Olsen inorganic P	−0.033	2.259	0.139	-	-	-	-
Olsen organic P	0.098	0.421	0.519	-	-	-	-
Microbial biomass C	−0.108	15.168	<0.001	***	-	-	-
Microbial biomass N	−0.082	12.355	<0.001	***	*	-	-
Microbial biomass P	−0.135	28.472	<0.001	***	-	-	-
Abiotic immobilization	0.018	21.832	<0.001	***	-	-	-
Total immobilization	0.000	0.078	0.780	-	-	-	-
Biotic immobilization	−0.075	32.820	<0.001	***	-	-	-
Gross P_i mobilization	−0.102	6.300	0.015	*	-	-	-
Gross P_i immobilization	−0.051	6.709	0.012	*	-	-	-
Oxalate extracted Fe	−0.011	0.134	0.720	-	-
Oxalate extracted Mn	0.026	0.090	0.769	-	-
Oxalate extracted Al	−0.010	0.201	0.659	-	-
Dithionite extracted Fe	0.062	4.999	0.041	*	-
Dithionite extracted Mn	0.011	0.095	0.762	-	-
Crystalline Fe oxides	0.088	4.665	0.047	*	-
Sand	−0.120	5.533	0.033	*	-
Silt	0.012	0.721	0.409	-	-
Clay	0.047	1.651	0.218	-	-
Exchangeable Na	−0.056	0.133	0.721	-	-
Exchangeable K	−0.044	0.710	0.410	-	-
Exchangeable Ca	−0.044	1.058	0.320	-	-
Exchangeable Mg	−0.024	0.369	0.552	-	-
Exchangeable Mn	0.076	1.740	0.207	-	-
Cation exchange capacity	−0.038	0.840	0.374	-	-
Kaolinite	−0.004	0.555	0.468	-	-
Illite	0.021	1.572	0.229	-	-
Chlorite and mix layers	0.000	0.000	1.000	-	-

Significance levels are represented as asterisks: ^*p < .05; ^**p < .01; ^***p < .001; - not significant. Potential activity of acid phosphatase, total soil inorganic P, total dissolved P, dissolved inorganic P, dissolved organic P, microbial biomass C, microbial biomass N, microbial biomass P, biotic immobilization, gross P_i immobilization, sand content, exchangeable Na, exchangeable K, and exchangeable Mn were log-transformed, and gross P_i mobilization was sqrt-transformed before running mixed-effects model.

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