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Descriptive statistics for snag density

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Tables included on this screen: inv-7a, inv-7b, inv-8a, inv-8b

Table inv-7a. Distribution-free tolerance limits (trees per hectare) for snags > 25.4 cm (10.0 in) dbh and > 2.0 m (6.6 ft) tall on all plots, with measurable snags, by vegetation condition. The summaries are based on BLM, CVS, and FIA plots that are on the 5.5-km grid. If the number of plots with measurable snags in a vegetation condition fell below 10, the cells are left blank.

Vegetation condition
n
Min.
30% tolerance limit
50% tolerance limit
80% tolerance limit
Max.
WLCH_WCO_O
102
2.2
4.6
8.3
23.4
74.2
WLCH_WCO_S
173
2.2
9.2
17.7
37.8
178.8
WLCH_WCO_L
46
2.2
21.0
32.1
55.8
123.8
WLCH_OCO_O
106
1.0
4.4
10.3
26.1
53.5
WLCH_OCO_S
165
1.1
6.8
14.5
33.9
76.8
WLCH_OCO_L
102
1.7
18.1
26.6
58.6
182.2
WLCH_WCA_O
49
2.2
5.0
8.7
26.2
46.2
WLCH_WCA_S
153
2.2
12.4
24.9
53.2
148.1
WLCH_WCA_L
48
2.6
22.9
30.2
65.9
144.9
WLCH_OCA_O
72
2.2
4.2
7.9
22.4
138.9
WLCH_OCA_S
160
1.0
12.5
20.4
50.6
168.9
WLCH_OCA_L
136
1.0
18.3
26.6
51.8
118.9
SWOMC_O
92
1.0
5.2
10.5
26.2
124.2
SWOMC_S
139
2.6
10.1
15.1
33.8
87.5
SWOMC_L
89
1.0
13.1
19.7
37.7
89.7
MMC_O
159
1.0
7.9
15.1
49.4
272.9
MMC_S
452
1.0
23.0
38.7
80.2
277.1
MMC_L
142
2.2
26.2
35.5
56.4
129.5
LP_O
75
2.6
12.3
19.2
51.2
145.9
LP_S
48
2.6
20.8
27.6
68.3
128.2
EMC_NCR_O
113
1.0
9.9
15.3
37.3
177.0
EMC_NCR_S
214
1.7
12.5
21.0
55.8
414.7
EMC_NCR_L
15
2.6
15.5
19.1
39.3
42.1
EMC_ECB_O
151
1.0
7.2
16.3
46.0
208.1
EMC_ECB_S
521
1.0
12.3
20.4
47.3
230.1
EMC_ECB_L
70
2.5
13.1
21.8
52.4
223.7
PPDF_O
84
1.0
7.7
13.5
29.6
133.0
PPDF_S
151
1.0
3.3
7.9
18.0
191.1
PPDF_L
21
2.4
7.9
11.0
32.8
49.4

 

Table inv-7b. Distribution-free tolerance limits (trees per hectare) for snags > 25.4 cm (10.0 in) dbh and > 2.0 m (6.6 ft) tall on all plots, with and without measurable snags, by vegetation condition. The summaries are based on BLM, CVS, and FIA plots that are on the 5.5-km grid.

Vegetation condition
n
Min.
30% tolerance limit
50% tolerance limit
80% tolerance limit
Max.
WLCH_WCO_O
278
0.0
0.0
0.0
8.0
74.2
WLCH_WCO_S
255
0.0
2.2
7.7
30.1
178.8
WLCH_WCO_L
52
0.0
15.6
27.2
52.2
123.8
WLCH_OCO_O
249
0.0
0.0
0.0
14.2
53.5
WLCH_OCO_S
232
0.0
2.2
7.5
26.1
76.8
WLCH_OCO_L
108
0.0
17.1
24.6
53.2
182.2
WLCH_WCA_O
133
0.0
0.0
0.0
7.3
46.2
WLCH_WCA_S
185
0.0
7.2
18.0
49.6
148.1
WLCH_WCA_L
51
0.0
22.6
29.6
64.3
144.9
WLCH_OCA_O
163
0.0
0.0
0.0
9.5
138.9
WLCH_OCA_S
203
0.0
4.4
13.8
46.0
168.9
WLCH_OCA_L
141
0.0
16.4
26.2
51.8
118.9
SWOMC_O
157
0.0
0.0
3.3
18.5
124.2
SWOMC_S
173
0.0
5.2
12.5
28.0
87.5
SWOMC_L
95
0.0
11.5
18.3
36.7
89.7
MMC_O
290
0.0
0.0
4.8
25.0
272.9
MMC_S
494
0.0
19.2
34.9
78.2
277.1
MMC_L
148
0.0
23.6
32.8
56.0
129.5
LP_O
157
0.0
0.0
2.6
27.6
145.9
LP_S
76
0.0
0.0
19.5
45.3
128.2
EMC_NCR_O
268
0.0
0.0
0.0
18.0
177.0
EMC_NCR_S
368
0.0
0.0
6.6
34.3
414.7
EMC_NCR_L
28
0.0
0.0
7.0
23.0
42.1
EMC_ECB_O
283
0.0
0.0
2.6
26.3
208.1
EMC_ECB_S
758
0.0
1.7
10.5
37.1
230.1
EMC_ECB_L
105
0.0
3.3
13.1
34.6
223.7
PPDF_O
310
0.0
0.0
0.0
7.7
133.0
PPDF_S
395
0.0
0.0
0.0
7.8
191.1
PPDF_L
48
0.0
0.0
2.4
13.1
49.4

 

Table inv-8a. Distribution-free tolerance limits (trees per hectare) for snags > 50.0 cm (19.7 in) dbh and > 2.0 m (6.6 ft) tall on all plots, with measurable snags, by vegetation condition. The summaries are based on BLM, CVS, and FIA plots that are on the 5.5-km grid. If the number of plots with measurable snags in a vegetation condition fell below 10, the cells are left blank.

Vegetation condition
n
Min.
30% tolerance limit
50% tolerance limit
80% tolerance limit
Max.
WLCH_WCO_O
79
2.2
2.2
4.4
8.3
28.8
WLCH_WCO_S
135
2.2
3.6
5.6
12.8
100.6
WLCH_WCO_L
39
2.2
13.5
20.0
33.3
51.7
WLCH_OCO_O
96
1.0
3.3
6.6
15.7
33.2
WLCH_OCO_S
137
1.1
4.4
5.8
18.3
49.9
WLCH_OCO_L
96
1.0
10.5
16.7
27.0
76.5
WLCH_WCA_O
36
2.2
2.8
5.9
9.6
23.6
WLCH_WCA_S
124
2.2
6.0
13.1
27.9
49.7
WLCH_WCA_L
45
2.6
9.8
16.7
29.8
58.6
WLCH_OCA_O
54
2.2
2.8
5.0
10.2
115.3
WLCH_OCA_S
133
1.0
5.2
8.7
18.3
55.0
WLCH_OCA_L
130
1.0
8.7
14.1
24.0
79.6
SWOMC_O
62
1.0
3.3
5.2
13.1
39.3
SWOMC_S
102
1.0
5.2
7.1
13.1
40.3
SWOMC_L
82
1.0
6.2
8.9
18.3
32.4
MMC_O
96
1.0
2.6
5.2
13.1
87.5
MMC_S
351
1.0
6.2
9.8
22.2
109.5
MMC_L
140
2.0
13.1
21.0
35.3
65.6
LP_O
22
1.7
5.0
6.6
19.7
39.3
LP_S
21
2.6
5.2
8.9
19.7
26.2
EMC_NCR_O
47
1.0
3.3
5.2
15.7
43.4
EMC_NCR_S
114
1.7
3.6
6.2
13.1
41.1
EMC_NCR_L
10
2.6
6.0
7.0
20.6
20.6
EMC_ECB_O
92
1.0
3.3
5.2
10.8
52.4
EMC_ECB_S
376
1.0
4.6
7.6
16.9
71.7
EMC_ECB_L
60
1.0
7.9
10.5
19.7
55.8
PPDF_O
49
1.0
2.8
4.4
13.1
44.3
PPDF_S
89
1.0
2.6
2.6
5.2
13.5
PPDF_L
12
2.4
6.2
6.6
13.1
26.2

 

Table inv-8b. Distribution-free tolerance limits (trees per hectare) for snags > 50.0 cm (19.7 in) dbh and > 2.0 m (6.6 ft) tall on all plots, with and without measurable snags, by vegetation condition. The summaries are based on BLM, CVS, and FIA plots that are on the 5.5-km grid.

Vegetation condition
n
Min.
30% tolerance limit
50% tolerance limit
80% tolerance limit
Max.
WLCH_WCO_O
278
0.0
0.0
0.0
2.6
28.8
WLCH_WCO_S
255
0.0
0.0
2.2
7.4
100.6
WLCH_WCO_L
52
0.0
5.2
16.7
29.5
51.7
WLCH_OCO_O
249
0.0
0.0
0.0
6.6
33.2
WLCH_OCO_S
232
0.0
0.0
2.6
10.0
49.9
WLCH_OCO_L
108
0.0
7.9
14.1
26.6
76.5
WLCH_WCA_O
133
0.0
0.0
0.0
4.2
23.6
WLCH_WCA_S
185
0.0
2.2
5.7
18.0
49.7
WLCH_WCA_L
51
0.0
8.5
14.9
29.8
58.6
WLCH_OCA_O
163
0.0
0.0
0.0
3.6
115.3
WLCH_OCA_S
203
0.0
0.0
4.4
15.7
55.0
WLCH_OCA_L
141
0.0
6.6
13.1
23.6
79.6
SWOMC_O
157
0.0
0.0
0.0
5.2
39.3
SWOMC_S
173
0.0
0.0
2.6
9.9
40.3
SWOMC_L
95
0.0
5.2
7.9
18.3
32.4
MMC_O
290
0.0
0.0
0.0
5.2
87.5
MMC_S
494
0.0
2.6
6.2
18.3
109.5
MMC_L
148
0.0
13.1
21.0
34.1
65.6
LP_O
157
0.0
0.0
0.0
0.0
39.3
LP_S
76
0.0
0.0
0.0
6.6
26.2
EMC_NCR_O
268
0.0
0.0
0.0
1.0
43.4
EMC_NCR_S
368
0.0
0.0
0.0
4.5
41.1
EMC_NCR_L
28
0.0
0.0
0.0
7.0
20.6
EMC_ECB_O
283
0.0
0.0
0.0
4.5
52.4
EMC_ECB_S
758
0.0
0.0
1.3
9.1
71.7
EMC_ECB_L
105
0.0
0.0
5.2
13.1
55.8
PPDF_O
310
0.0
0.0
0.0
0.0
44.3
PPDF_S
395
0.0
0.0
0.0
2.0
13.5
PPDF_L
48
0.0
0.0
0.0
6.2
26.2