Table 1 Main soil physico-chemical characteristics (0–5 cm) in the four summits analysed.

From: Hierarchical drivers of soil microbial community structure variability in “Monte Perdido” Massif (Central Pyrenees)

Summit	Aspect	Texture	Sand	Silt	Clay	pH	OM^†	SOC	Total N^††	Total P	C:N	N/P	MBC^¶	MBN^¶¶	Cmic:	Ca	Mg	Na	K
(m a.s.l.)	Aspect	Texture	%	%	%	H₂O (1:1)	%	g kg⁻¹	%	ppm	C:N	N/P	<–µg g dry soil⁻¹>	Corg	<--------------- ppm -------------->
ACU (2,200)	N	Sandy loam	60.0	26.4	13.6	6.6	8.09	52.5	0.49	0.53	10.71	0.92	443.63	31.99	8.45	47.75	2.88	4.56	8.57
	S	Loam	34.5	42.0	23.5	5.9	4.33	27.28	0.32	0.385	8.53	0.85	683.49	38.99	25.05	61.02	14.70	7.27	151.58
	E	Loam	40.1	36.3	23.5	6.3	4.12	27.1	0.28	0.142	9.68	1.95	780.87	38.82	28.81	27.99	3.41	2.78	19.79
	W	Clay loam	31.6	40.7	27.7	4.0	9.25	66.21	0.54	0.224	12.26	2.44	1334.09	46.38	20.15	22.02	4.47	3.90	12.76
	Mean		41.6	36.4	22.1	5.7	6.4	43.3	0.4	0.32	10.3	1.5	810.5	39.0	20.6	39.7	6.4	4.6	48.2
CUS (2,550)	N	Silt loam	18.9	60.5	20.6	7.9	1.54	10.78	0.14	0.009	10.00	15.85	350.99	18.09	32.56	56.25	4.25	2.49	2.25
	S	Loam	45.1	36.3	18.6	6.5	7.10	52.45	0.40	0.69	13.11	0.58	816.20	16.39	15.56	116.02	14.14	9.15	77.09
	E	Silt loam	19.8	66.8	13.4	7.8	1.39	10.79	0.13	0.125	11.14	1.02	155.10	11.58	14.37	72.95	4.92	2.71	12.91
	W	Loam	44.4	35.9	19.6	6.7	9.05	63.32	0.60	1.205	10.55	0.50	447.21	28.96	7.06	167.13	26.68	1.73	97.20
	Mean		32.1	49.9	18.1	7.2	4.8	34.3	0.3	0.51	11.2	4.5	442.4	18.8	17.4	103.1	12.5	4.0	47.4
TOB (2,800)	N	Loam	60.3	32.8	6.8	7.4	0.91	5.39	0.10	0.019	7.67	5.42	51.45	10.34	9.55	45.38	4.96	13.67	7.59
	S	Loam	37.5	47.8	14.6	7.4	0.85	5.11	0.07	—	7.30	—	38.31	7.83	7.50	112.13	4.27	8.08	4.72
	E	Sandy loam	60.7	29.3	10.0	7.5	1.01	5.77	0.08	0.019	7.21	4.31	70.00	13.70	12.13	52.54	2.28	6.47	3.55
	W	Loam	46.8	43.7	9.2	7.7	0.74	4.34	0.12	—	6.42	—	170.87	15.29	39.37	73.64	3.50	5.87	7.81
	Mean		51.3	38.4	10.2	7.5	0.9	5.2	0.1	0.01	7.2	4.9	82.7	11.8	17.1	70.9	3.8	8.5	5.9
OLA (3,022)	N	Sandy loam	70.2	17.0	12.8	7.5	1.39	9.66	0.12	0.102	8.05	1.21	121.00	9.17	12.53	57.21	1.01	2.84	2.02
	S	Loam	46.7	27.9	25.4	7.6	0.43	2.54	0.06	0.036	12.90	1.78	15.67	1.04	6.17	38.33	1.17	4.21	1.48
	E	Loam	50.7	30.8	18.5	7.9	0.92	5.92	0.08	0.015	7.82	5.56	197.00	14.93	33.28	45.51	0.93	2.56	0.92
	W	Loam	35.6	39.7	24.6	7.7	0.36	2.19	0.06	—	13.06	—	48.95	3.69	22.35	41.06	0.93	4.72	1.73
	Mean		50.8	28.9	20.3	7.7	0.8	5.1	0.1	0.038	10.5	2.9	95.7	7.2	18.6	45.5	1.0	3.6	1.5

^†Combustion method.
^††Kjeldahl extraction.
^¶MBC = Microbial biomass carbon.
^¶¶MBN = Microbial biomass nitrogen.

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Table 1 Main soil physico-chemical characteristics (0–5 cm) in the four summits analysed.

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