Effect of forest fire on soil microbial biomass and enzymatic activity in oak and pine forests of Uttarakhand Himalaya, India

Singh, Devanshi; Sharma, Priyanka; Kumar, Ujjwal; Daverey, Achlesh; Arunachalam, Kusum

doi:10.1186/s13717-021-00293-6

Ecological Processes

Table 4 Correlation between microbial and physicochemical properties of soil in oak and pine forests of Tehri and Pauri Garhwal

From: Effect of forest fire on soil microbial biomass and enzymatic activity in oak and pine forests of Uttarakhand Himalaya, India

Parameter^a	C_mic	N_mic	SBR	DHA	ACP	pH	EC	BD	CEC	TN	OM	Moisture	SOC	N_mic/TN	C_mic/C_org	C_mic/N_mic
C_mic	1	0.703^**	0.621^**	− 0.450^**	0.442^*	− 0.406^*	− 0.255	− 0.382^*	− 0.433^*	− 0.231	− 0.504^**	0.633^**	− 0.499^**	0.454^**	0.952^**	0.948^**
N_mic	0.703^**	1	0.386^*	− 0.513^**	− 0.136	− 0.507^**	− 0.185	− 0.057	0.137	0.217	− 0.347	0.372^*	− 0.339	0.202	0.625^**	0.480^**
SBR	0.621^**	0.386^*	1	− 0.125	0.511^**	− 0.663^**	− 0.107	− 0.629^**	− 0.375^*	− 0.309	− 0.211	0.656^**	− 0.209	0.471^**	0.547^**	0.599^**
DHA	− 0.450^**	− 0.513^**	− 0.125	1	− 0.207	− 0.012	0.760^**	− 0.228	0.340	0.172	0.807^**	− 0.175	0.802^**	− 0.369	− 0.583^**	− 0.393^*
ACP	0.442^*	− 0.136	0.511^**	− 0.207	1	− 0.245	− 0.286	− 0.638^**	− 0.891^**	− 0.803^**	− 0.533^**	0.628^**	0.535^**	0.703^**	0.498^**	0.625^**
pH	− 0.406^*	− 0.507^**	− 0.663^**	− 0.012	− 0.245	1	− 0.087	0.634^**	0.101	0.305	0.096	− 0.682^**	0.095	− 0.535^**	− 0.313	− 0.292
EC	− 0.255	− 0.185	− 0.107	0.760^**	− 0.286	− 0.087	1	− 0.367^*	0.483^**	0.275	0.728^**	0.014	0.731^**	− 0.319	− 0.473^**	− 0.327
BD	− 0.382^*	− 0.057	− 0.629^**	− 0.228	− 0.638^**	0.634^**	− 0.367^*	1	0.428^*	0.522^**	0.016	− 0.720^**	0.018	− 0.555^**	− 0.242	− 0.407^*
CEC	− 0.433^*	0.137	− 0.375^*	0.340	− 0.891^**	0.101	0.483^**	0.428^*	1	0.793^**	0.601^**	− 0.472^**	0.605^**	− 0.665^**	− 0.539^**	− 0.640^**
TN	− 0.231	0.217	− 0.309	0.172	− 0.803^**	0.305	0.275	0.522^**	0.793^**	1	0.413^*	− 0.559^**	0.419^*	−.868^**	− 0.313	− 0.394^*
OM	− 0.504^**	− 0.347	− 0.211	0.807^**	− 0.533^**	0.096	0.728^**	0.016	0.601^**	0.413^*	1	− 0.361^*	0.999^**	− 0.550^**	− 0.680^**	− 0.538^**
Moisture	0.633^**	0.372^*	0.656^**	− 0.175	0.628^**	− 0.682^**	0.014	− 0.720^**	− 0.472^**	− 0.559^**	− 0.361^*	1	− 0.360^*	0.715^**	0.564^**	0.634^**
SOC	− 0.499^**	− 0.339	− 0.209	0.802^**	0.535^**	0.095	0.731^**	0.018	0.605^**	0.419^*	0.999^**	− 0.360^*	1	− 0.522^**	− 0.677^**	− 0.535^**
N_mic/TN	0.454^**	0.202	0.471^**	− 0.369	0.703^**	− 0.535^**	− 0.319	− 0.555^**	− 0.665^**	− 0.868^**	− 0.550^**	0.715^**	− 0.522^**	1	0.494^**	0.520**
C_mic/C_org	0.952^**	0.625^**	0.547^**	− 0.583^**	0.498^**	− 0.313	− 0.473^**	− 0.242	− -0.539^**	− 0.313	− 0.680^**	0.564^**	− 0.677^**	0.494^**	1	0.935^**
C_mic/N_mic	0.948^**	0.480^**	0.599^**	− 0.393^*	0.625^**	− 0.292	− 0.327	− 0.407^*	− 0.640^**	− 0.394^*	− 0.538^**	0.634^**	− 0.535^**	0.520**	0.935^**	1
C/N	− 0.210	− 0.468^**	0.121	0.389^*	0.401^*	− 0.273	0.253	− 0.537^**	− 0.317	− 0.713^**	0.287	0.336	0.281	0.550^**	− 0.263	− 0.75

^***p ≤ 0.001 (highly significant), ^** p ≤ 0.05 (medium significant), ^*p ≤ 0.1 (less significant)
^aC_mic soil microbial biomass carbon, N_mic soil microbial biomass nitrogen, SBR soil basal respiration, DHA, dehydrogenase activity, ACP acid phosphatase activity, EC electrical conductivity, BD bulk density, CEC cation exchange capacity, TN total nitrogen, OM organic matter

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