. 2022 Dec 22;13:1042944. doi: 10.3389/fmicb.2022.1042944

Table 1.

Soil properties in the rhizosphere of four Populus species.

Soil properties	LM	XJ	HY	XY
pH	8.12 ± 0.04^a	8.03 ± 0.03^b	8.13 ± 0.02^a	8.06 ± 0.03^ab
Moisture	4.00% ± 0.00^a	4.00% ± 0.00^a	2.00% ± 0.00^b	3.00% ± 0.00^a
EC(μs/cm)	121.80 ± 0.70^a	124.57 ± 0.74^a	119.93 ± 0.32^a	117.10 ± 6.90^a
OM(g/kg)	11.19 ± 0.40^a	7.74 ± 0.17^c	9.98 ± 0.08^b	7.43 ± 0.34^c
AP(mg/kg)	32.83 ± 0.02^a	11.50 ± 0.03^b	4.34 ± 0.00^c	2.90 ± 0.01^c
AK(mg/kg)	10.50 ± 0.16^c	26.48 ± 0.06^a	9.67 ± 0.15^d	10.87 ± 0.12^b
AN(mg/kg)	38.93 ± 0.20^a	35.33 ± 0.91^b	33.92 ± 1.38^b	28.09 ± 1.07^c

Different lower letters mean significant differences (p < 0.05) between the properties of different samples. Populus species: LM (P. tomentosa), XJ (P. alba var. pyramidalis Bge.), HY (P. nigra), and XY (P. simonii Carr).