|
Site categories
| |
Undamaged sites (= low risk)
| |
Damaged sites (= high risk)
|
|---|
| |
Minimum
|
Maximum
|
Mean/median
|
+/− SEM
|
Minimum
|
Maximum
|
Mean/median
|
+/− SEM
|
|---|
|
Grubs (all species) per m2**
|
1.04
|
95.83
|
30.83
|
10.47
|
26.04
|
303.13
|
117.63
|
27.16
|
|
Grub damages 2011 (ord)
|
0
|
0
|
0
|
/
|
0
|
1
|
1
|
/
|
|
Humus (%) t
|
4.57
|
11.95
|
8.13
|
0.72
|
5.89
|
12.53
|
9.93
|
0.67
|
|
Nmin (kg/ha)
|
5.00
|
36.00
|
11.90
|
2.81
|
7.00
|
24.00
|
13.20
|
1.50
|
|
DOC (kg/ha)*
|
48.00
|
238.00
|
102.80
|
17.07
|
86.00
|
273.00
|
154.20
|
21.96
|
|
pH-H2O
|
5.16
|
6.13
|
5.53
|
0.10
|
5.15
|
5.75
|
5.49
|
0.06
|
|
Clay (%)
|
13.08
|
21.10
|
15.94
|
0.74
|
11.90
|
22.83
|
16.44
|
1.03
|
|
Silt (%)
|
29.60
|
42.58
|
34.39
|
1.27
|
27.95
|
38.31
|
33.15
|
1.00
|
|
sand (%)
|
41.06
|
57.26
|
49.65
|
1.81
|
38.86
|
56.78
|
50.39
|
1.75
|
|
A-horizon max. (cm) eBOD
|
20.00
|
30.00
|
24
|
1.25
|
15.00
|
30.00
|
24
|
2.21
|
|
Humus db (%) eBOD
|
2.20
|
4.90
|
3.34
|
0.31
|
2.20
|
5.10
|
3.79
|
0.35
|
|
Water supply (ord) eBOD
|
3.00
|
7.00
|
5
|
/
|
3.00
|
5.00
|
5
|
/
|
|
Altitude above sealevel (m)
|
838.86
|
1103.99
|
983.68
|
25.68
|
850.93
|
1094.65
|
966.47
|
24.67
|
|
Slope (degrees)
|
4.92
|
22.24
|
13.03
|
1.71
|
3.07
|
24.13
|
14.53
|
1.85
|
|
Aspect (degrees)
|
3.19
|
169.62
|
66.55
|
15.21
|
2.32
|
147.28
|
74.86
|
17.01
|
|
Usual number of cuts/year*
|
1.00
|
4.00
|
2.10
|
0.23
|
0.00
|
2.00
|
1.40
|
0.22
|
|
Usual number of grazings/year
|
0.00
|
2.00
|
1.00
|
0.15
|
1.00
|
4.00
|
1.60
|
0.40
|
|
Usual manure amount/year (ord)
|
1.00
|
3.00
|
1.5
|
/
|
0.00
|
3.00
|
1
|
/
|
- For parametric data the means (+/− SEM = standard error of the mean), in case of ordinal parameters (ord) the medians were calculated. Significant differences between the two site categories are indicated by: ** = p ≤ 0.01, * = 0.05 ≥ p > 0.01, t = 0.1 ≥ p > 0.05 trend. The p-values were calculated by t-tests or Mann Whitney U-tests in case of ordinal variables. Parameters: The soil parameters were analysed from soil samples (0 – 10 cm), except the parameters marked by “eBOD” which were read from a soil database (eBOD, 2013); “DOC” = dissolved organic carbon, “A-horizon max”. = maximum depth of the A-horizon, “water supply” (1 = very low to 7 = very high), “aspect” = deviation from facing south (180 degrees), “usual manure amount / year” (0 = no to 3 = much).
