Table 4.

The activity of alkaline phosphatase (AlP) and acid phosphatase (AcP) and index of time (TI)

Depth (cm)	Horizon	AlP		AcP		TI
		(mM pNP kg−1 h−1)
		Spring	Autumn	Spring	Autumn	AlP	AcP
Control
0–20	A	2.933	0.942	5.578	2.207	0.32	0.40
20–50	ABv	0.870	0.474	1.373	0.776	0.55	0.57
50–100	BvC	0.472	0.319	1.891	1.682	0.68	0.89
100–130	C	0.267	0.198	0.474	0.410	0.74	0.86
Profile I
0–15	A	2.171	2.033	9.906	7.217	0.92	0.73
15–72	Bv	1.050	0.607	2.595	1.682	0.58	0.65
72–100	C	0.575	0.165	0.791	0.489	0.29	0.62
Profile II
0–15	A	1.690	0.744	7.174	4.335	0.44	0.60
15–39	ABv	0.921	0.821	5.082	3.055	0.89	0.60
39–87	C1	0.997	0.409	1.157	0.877	0.41	0.76
87–100	C2	0.574	0.305	0.812	0.352	0.53	0.43
Profile III
0–4	A	2.746	2.092	6.506	4.155	0.76	0.64
4–18	ABv	1.229	0.776	1.768	1.121	0.63	0.63
18–60	Bv	0.439	0.266	0.748	0.295	0.61	0.39
60–150	C	0.208	0.295	0.704	0.582	1.41	0.83