Agriculture Reference
In-Depth Information
mineralization, nevertheless the increased pH which should be more favourable to the
bacterial growth.
DON
a
500
450
400
350
300
250
200
b
150
100
50
a
a
0
to
t1
time
DOC
a
18000
b
16000
14000
12000
8000
6000
4000
2000
0
a
a
0
to
t1
time
Figure 5. DON and DOC concentration before (to, November 2001) and after the incubation (t1, May
2002). Different letters indicate significant differences between stratum I and stratum II (p<0.05).
Asterisks indicate significant differences between to and t1 in the same stratum.
The microbial N and C in the OH horizon in the late fall revealed in fact a limited
biomass content compared to the reference site and even lower than that reported in Arctic
