Appendix E. Agricultural management effects on soil biota abundances and microbial characteristics.
The effect of agricultural management on soil biota taxonomic groups and microbial characteristics in the third and fourth year after conversion (2002, 2003). Means (n = 3) and P levels of significance (P < 0.10) as a result of ANOVA are presented. Hist = field history, Fert = Fertilization. Other abbreviations as in Appendix A and Appendix B. Only soil biota groups that were significantly affected by land used change are presented.
2002 |
2003 |
|||||||||||
LongA |
NewA |
LongA |
NewA |
|||||||||
Mon |
Rot |
Mon |
Rot |
Mon |
Rot |
Mon |
Rot |
|||||
Means (n = 3) |
CF |
RF |
CF |
RF |
CF |
RF |
CF |
RF |
RF |
RF |
RF |
RF |
Earthworms (n m-2) |
13 |
8 |
13 |
46 |
0 |
17 |
4 |
0 |
4 |
17 |
0 |
0 |
Collembolans (n m-2 103) |
ND |
ND |
5 |
5 |
ND |
ND |
ND |
ND |
5 |
2 |
1 |
2 |
Nematodes (n g-1) |
49 |
41 |
77 |
49 |
31 |
34 |
35 |
29 |
36 |
23 |
37 |
10 |
Protozoans (n mg-1) |
41 |
39 |
64 |
97 |
25 |
46 |
47 |
107 |
36 |
31 |
38 |
38 |
Fungal biomass (µg C g-1) |
6 |
8 |
12 |
12 |
24 |
19 |
18 |
10 |
4 |
3 |
8 |
5 |
Thymidine incorporation pmol g-1 h-1) |
44 |
65 |
92 |
99 |
35 |
31 |
35 |
61 |
18 |
25 |
11 |
24 |
Leucine incorporation (pmol g-1 h-1) |
259 |
349 |
407 |
437 |
298 |
231 |
293 |
349 |
242 |
316 |
209 |
24 |
2002 |
2003 |
|||||
P levels of significance (P<0.10) |
Hist |
Crop |
Fert |
Crop × Fert |
Hist |
Crop |
Earthworms (n m-2) |
0.090 |
|
|
0.096 |
0.001 |
|
Nematodes (n g-1) |
0.000 |
0.021 |
0.024 |
|
|
0.003 |
Protozoans (n mg-1) |
|
0.000 |
0.004 |
|
|
|
Fungal biomass (µg C g-1) |
0.000 |
0.001 |
0.016 |
|
0.095 |
|
Thymidine incorporation (pmol g-1 h-1) |
0.001 |
0.016 |
|
|
|
|
Leucine incorporation (pmol g-1 h-1) |
0.025 |
0.021 |
|
|
|
|