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Field Survey Summary Tables – Ecoregions
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Table 20. Number of fields surveyed by crop in each ecoregion
Annual crops
Perennial
Cereal crops
Broad-leaved annual crops
crops
Spring
Sugar Dry
Grass
wheat Barley Corn Other Canola Potatoes beets beans Other Alfalfa hay
Moist Mixed Grassland
47
56
17
-
18
-
2
1
-
14
13
Fescue Grassland
4
9
-
-
4
-
-
-
-
3
8
Mixed Grassland
104
42
22
2
46
19
15
26
2
72
25
Alberta
155 107
39
2
68
19
17
27
2
89
46
Table 21. Density, species richness and weed-free quadrats in the surveyed crops in each ecoregion
Number of
Density
Species
Weed-free
fields surveyed
(number/m
2
)
(number /field)
quadrats
Crop
mean SE median
mean SE
%
SE
Fescue Grassland
28
12.6
3.6
4.7
2.9
0.4
46.7
9.4
Annual crops
17
7.2
2.4
1.9
2.5
0.5
60.6 11.9
Cereal crops
13
7.1
2.7
2.6
2.2
0.6
60.4 13.6
Perennial crops
11
23.6
8.2
20.2
3.6
0.7
18.5 11.7
Moist Mixed Grassland
168
17.4
2.5
7.0
3.8
0.2
39.0
3.8
Annual crops
141
17.9
2.9
7.0
4.1
0.2
39.0
4.1
Cereal crops
120
20.3
3.3
8.1
4.2
0.2
36.4
4.4
Spring wheat
47
18.3
3.7
9.7
4.0
0.3
32.7
6.8
Barley
56
23.6
6.1
7.8
4.2
0.3
38.8
6.5
Corn
17
14.5
4.5
4.9
4.9
0.5
38.0 11.8
Broad-leaved annual crops
21
4.6
1.1
3.2
3.6
0.5
53.5 10.9
Canola
18
3.9
0.8
2.7
3.2
0.5
56.1 11.7
Perennial crops
27
14.8
4.0
6.3
2.3
0.3
39.1
9.4
Alfalfa
14
17.6
6.7
5.5
2.2
0.4
34.0 12.7
Grass hay
13
11.8
3.8
4.6
2.5
0.4
44.6 13.8
Mixed Grassland
375
11.0
0.9
3.8
3.2
0.1
51.0
2.6
Annual crops
278
8.5
0.9
3.0
3.3
0.2
56.9
3.0
Cereal crops
170
11.5
1.4
4.4
4.0
0.2
46.4
3.8
Spring wheat
104
10.5
1.7
4.1
4.0
0.3
50.4
4.9
Barley
42
14.7
3.2
5.1
3.7
0.3
39.8
7.6
Corn
22
9.4
2.6
4.4
4.1
0.6
43.4 10.6
Broad-leaved annual crops
108
3.8
0.9
1.0
2.1
0.2
74.0
4.2
Canola
46
5.4
1.8
1.8
2.6
0.3
67.7
6.9
Dry beans
26
1.5
0.5
0.6
1.2
0.2
84.3
7.1
Potatoes
19
1.0
0.2
0.8
1.9
0.3
81.5
8.9
Sugar beets
15
2.9
1.4
0.2
1.9
0.6
76.0 11.0
Perennial crops
97
17.8
2.3
9.5
2.9
0.2
34.3
4.8
Alfalfa
72
20.0
2.9
10.9
3.1
0.3
30.1
5.4
Grass hay
25
11.4
3.0
5.0
2.4
0.3
46.7 10.0