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Field Survey Summary Tables – United, Leavitt, Aetna& Mountain View Irrigation Districts
164
Table 199. 2009 irrigated fields in United, Leavitt, Aetna & Mountain View Irrigation Districts (15 fields)
Frequency Field Uniformity
Field Density (#/m
2
)
Relative
Rank Species
(%)
All Occurrence All Occurrence High Abundance
1
Dandelion
56.8
31.4
55.3
3.9
6.9
18.0
100.1
2
Downy brome
22.7
9.1
39.8
1.6
7.2
18.0
36.2
3
Foxtail barley
38.6
4.4
11.3
1.1
2.9
15.2
29.5
4
Canada thistle
34.8
8.8
25.2
0.7
2.0
4.6
29.4
5
Annual sow-thistle
37.1
6.0
16.1
0.5
1.3
4.2
24.1
6
Stinkweed
26.5
4.5
17.1
0.4
1.5
3.8
18.2
7
Field bindweed
12.1
3.3
27.5
0.3
2.6
3.4
11.4
8
Wild buckwheat
8.3
2.1
25.0
0.2
2.0
2.0
7.0
9
Japanese brome
8.3
1.7
20.0
0.1
1.2
1.2
5.8
10
Shepherd's-purse
14.4
0.7
5.0
< 0.1
0.2
0.2
5.7
11
Wild mustard
8.3
1.7
20.0
0.1
0.8
0.8
5.4
12
Silky lupin
6.1
1.2
20.0
0.1
1.0
1.0
4.1
13
Narrow-leaved hawk's-beard
8.3
0.8
10.0
< 0.1
0.4
0.4
4.0
14
Quack grass
6.1
0.3
5.0
0.1
2.0
2.0
3.6
15
Tartary buckwheat
6.1
0.3
5.0
0.1
1.6
1.6
3.3
16
Kochia
8.3
0.4
5.0
< 0.1
0.2
0.2
3.3
17
Lamb's-quarters
8.3
0.4
5.0
< 0.1
0.2
0.2
3.3
18
Wormseed mustard
8.3
0.4
5.0
< 0.1
0.2
0.2
3.3
19
Ball mustard
6.1
0.3
5.0
< 0.1
0.4
0.4
2.5
Table 200. 2009 irrigated fields in Western Irrigation District (13 fields)
Frequency Field Uniformity
Field Density (#/m
2
)
Relative
Rank Species
(%)
All Occurrence All Occurrence High Abundance
1
Dandelion
49.0
19.6
39.9
4.9
10.1
35.8
64.6
2
Wild buckwheat
47.5
12.8
27.0
1.3
2.8
8.0
35.1
3
Wild oats
34.0
6.8
20.0
1.2
3.5
7.0
24.0
4
Canola (Argentine)
8.5
8.5 100.0
1.8
20.8
20.8
22.2
5
Lamb's-quarters
30.5
7.8
25.6
0.6
1.9
4.4
20.4
6
Shepherd's-purse
22.0
3.1
14.1
0.9
4.0
16.6
14.8
7
Barley
5.0
3.8
75.0
1.4
28.0
28.0
13.9
8
Annual sow-thistle
30.5
3.7
12.0
0.2
0.7
1.0
13.8
9
Stinkweed
5.0
3.8
75.0
1.4
27.0
27.0
13.6
10
Canada thistle
18.5
3.0
16.4
0.4
2.2
4.2
10.9
11
Chickweed
8.5
3.8
45.0
0.7
8.2
8.2
10.7
12
Flixweed
5.0
4.8
95.0
0.6
11.6
11.6
10.0
13
Kochia
17.0
3.4
20.0
0.2
1.2
2.2
9.6
14
Hemp-nettle
8.5
3.8
45.0
0.4
4.6
4.6
8.8
15
Cleavers
13.5
1.6
11.9
0.2
1.1
2.0
6.4
16
Narrow-leaved hawk's-beard 13.5
0.9
6.9
0.2
1.2
3.0
5.8
17
Stork's-bill
8.5
0.9
10.0
0.1
1.2
1.2
3.9
18
Quack grass
8.5
0.4
5.0
< 0.1
0.2
0.2
2.9
19
Round-leaved mallow
8.5
0.4
5.0
< 0.1
0.2
0.2
2.9
20
Russian thistle
8.5
0.4
5.0
< 0.1
0.2
0.2
2.9
21
Bluebur
5.0
0.8
15.0
0.1
1.2
1.2
2.6