Table A4.

Relative importance (%) of different processes at different soil pH scales in the maize field of Northeast China

pH difference	VS	HS	DL	HD	UD
[0,0.1)	29.41	4.41	11.03	37.50	17.65
[0.1,0.2)	31.43	6.43	12.86	30.00	19.28
[0.2,0.3)	29.58	9.86	9.86	36.62	14.08
[0.3,0.4)	29.30	6.37	12.10	34.39	17.83
[0.4,0.5)	31.65	8.63	17.27	30.22	12.23
[0.5,1)	36.55	5.91	17.57	26.44	13.53
[1,1.5)	47.41	5.01	22.36	14.13	11.09
[1.5,2)	57.80	2.44	24.88	6.58	8.29
[2,2.5)	76.94	0.56	15.56	3.06	3.89
[2.5,3)	83.21	1.14	10.69	1.91	3.05
[3,3.5)	89.60	0.58	4.62	4.62	0.58
[3.5,4)	89.02	2.44	1.22	4.88	2.44
[4,5.02)	100	0	0	0	0

For abbreviations, please see Table A3