Response of Soil C and N, Dissolved Organic C and N, and Inorganic N to Short-Term Experimental Warming in an Alpine Meadow on the Tibetan Plateau

Table 3

Multiple stepwise regression analyses between soil properties and environmental variables (soil temperature, 𝑇_𝑠; soil moisture, SM) and soil microbial biomass (microbial biomass C, MBC; microbial biomass N, MBN) in an alpine meadow on the Tibetan Plateau. MBC and MBN data were obtained from Fu et al. [20].

Soil properties	Factors	Coefficients	𝑅^2	𝑃
SOC	Constant	49.31		0.003
	MBC	0.04	0.76	<0.001
	𝑇𝑠	−2.69	0.10	0.006
TN	Constant	4.28		0.001
	MBC	0.002	0.66	0.004
	𝑇𝑠	−0.19	0.14	0.006
DOC	Constant	46.29		<0.001
	MBC	0.10	0.70	<0.001
DON	Constant	2.89		0.005
	MBC	0.01	0.51	0.001
NH4^+-N	Constant	−4.57		<0.001
	MBC	0.02	0.92	<0.001
	SM	22.39	0.05	<0.001
NO3^−-N	Constant	1.60		0.22
	MBN	0.06	0.39	0.005
Nmin	Constant	−2.24		0.085
	MBN	0.15	0.88	<0.001
	MBC	0.01	0.05	0.005
NH4^+-N/NO3^−-N	Constant	0.95		0.036
	MBC	0.004	0.47	0.002