Table 1. The basic physicochemical properties and heavy metal concentrations in V-Ti magnetite mine tailing soil.

Properties	Average value	Minimum value	Maximum value
pH	5.28±0.91	4.48	6.34
Organic matter (‰)	16.98±4.45	12.72	22.29
Total N (mg kg−1)	103.50±36.84	72.85	153.73
Available N (mg kg−1)	13.64±8.03	8.46	25.60
Available K (mg kg−1)	11.71±3.86	7.21	15.98
Available P (mg kg−1)	11.08±1.82	8.87	13.15
As (mg kg−1)	0.94±0.58	0.47	1.77
Fe (mg kg−1)	76145.84±3715.20	70782.50	78647.50
Ti (mg kg−1)	28185.84±3264.46	23976.67	31596.67
V (mg kg−1)	5584.38±2457.28	2974.00	7595.00
Cr (mg kg−1)	98.51±9.20	90.61	111.72
Mn (mg kg−1)	1417.17±141.02	1268.33	1543.75
Zn (mg kg−1)	87.72±20.27	69.21	106.59
Cu (mg kg−1)	56.75±30.65	30.05	95.58
Ni (mg kg−1)	48.11±12.23	38.40	65.34
Pb (mg kg−1)	6.90±1.37	5.62	8.84
Cd (mg kg−1)	0.52±0.25	0.19	0.78