. 2020 Nov 5;15(11):e0241794. doi: 10.1371/journal.pone.0241794

Table 1. Descriptive statistics of soil properties, climatic characteristics and AMF root colonization; Standard Deviation (STDEV), Range [min, max], n = 93 (31 sites with 3 replicates/site).

Latent variables: (unmeasured variables)	Manifest variables (measured variables)	Abbreviation	Mean ± STDEV	Range
Predictor variables	Manifest variables (measured variables)	Abbreviation	Mean ± STDEV	Range
1. Chemical soil properties	pH (H₂O)	pH	7.72 ± 0.38	[6.99, 8.6]
		pH	7.72 ± 0.38	[6.99, 8.6]
	Soil salinity [dS m^-1]	Salinity	0.17 ± 49.30	[0.06, 0.32]
		Salinity	0.17 ± 49.30	[0.06, 0.32]
	Total calcium carbonate [%]	Total CaCO₃	29.52 ± 19.05	[2, 68.5]
		Total CaCO₃	29.52 ± 19.05	[2, 68.5]
	Organic carbon content [%]	OC	1 ± 0.37	[0.3, 1.9]
		OC	1 ± 0.37	[0.3, 1.9]
	Organic nitrogen [mg g^-1]	ON	0.64 ± 0.41	[0.32, 1.48]
		ON	0.64 ± 0.41	[0.32, 1.48]
	Available phosphorus [ppm]	P	51.88 ± 17.72	[18.7, 107]
		P	51.88 ± 17.72	[18.7, 107]
2. Physical soil properties	Soil clay content [%]	SCC	37.74 ± 14.79	[6.9, 61.5]
		SCC	37.74 ± 14.79	[6.9, 61.5]
	Soil sand content [%]	SSC	30.19 ± 16.57	[2.3, 67.5]
		SSC	30.19 ± 16.57	[2.3, 67.5]
	Soil moisture content [%]	SMC	12.39 ± 5.23	[4.2, 24.8]
		SMC	12.39 ± 5.23	[4.2, 24.8]
3. Site climate	Average annual rainfall [mm]	AAR	413.19 ± 65.14	[323.9, 508.2]
		AAR	413.19 ± 65.14	[323.9, 508.2]
	Maximum temperature of the warmest month [°C]	M	27.67± 0.82	[26.2, 29.3]
		M	27.67± 0.82	[26.2, 29.3]
	Minimum temperature of the coldest month [°C]	m	8.68 ± 1.9	[5.3, 11.9]
		m	8.68 ± 1.9	[5.3, 11.9]
	Altitude [m a.s.l]	Z	215.6 ± 193.53	[2, 649]
Response variable
AMF root colonization	Total AMF colonization rate [%]		27.2 ± 14.65	[5.6, 75.6]