North Dakota State University * Dickinson Research Extension Center
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Tree & Shrub Survival in Shelterbelt Renovation at the Dickinson Research Extension Center Fall 1997

Mike Mangold and Brandon Lerbakken
Biology Students at Dickinson State University

(This project was a three-credit Directed Study for Environmental Biology, under the supervision of Dr. Dan Noble, Associate Professor of Biology at Dickinson State University and Mr. Jerry Larson, Stark/Billings County Extension Agent, NDSU Extension Service)

The data presented in this report is survival of the various coniferous and deciduous trees observed. Average height of the various trees is given in the Data Charts section (height data includes the height of replants).

The shrubs, American Cranberry, Juneberry and Nannyberry, were an understory planting between a row of Ponderosa Pine and various mature deciduous tree species. One-half of the row of shrubs were prepared by tillage while the second one-half of shrubs were planted directly into kill down smooth bromegrass or into a no-till situation. The shrubs were planted in alternating pairs: 2 American Cranberrybush plants, 2 Juneberry plants and 2 Nannyberry (Viburnum) plants. Tables 1, 2 and 3.

The survival of shrubs planted in the non-tilled pretreatment site were Juneberry and Nannyberry at 100% and American Cranberry at 95%.

Overall performance of the three species were American Cranberry at 96.9%, Juneberry at 97.6% and Nannyberry at 97.5%. The three species of shrubs were slightly better in the tilled pretreatment (98.3%) than the non-tilled (95.7%). However, replants may have confounded these results.

In Tables 4, 5, and 6, we report survival of Ponderosa Pine, Scotch Pine, Colorado Blue Spruce, and Black Hills Spruce in two different planting pretreatment sites in an open plot with no shade. All trees were planted in two different pretreated situations: one row mulched and one row non-mulched for each species.

The survival of trees in the mulched pretreatment was slightly higher than those in the non-mulched area. The survival in mulched pretreatment site was Ponderosa Pine, Colorado Blue Spruce, and Black Hills Spruce at 100%, followed by Scotch Pine at 97.6%. The survival in non-mulched pretreatment site was Ponderosa Pine at 97.6%, Black Hills Spruce and Colorado Blue Spruce at 97.5%, and Scotch Pine at 97.3%.

It appears the mulched pretreatment is more successful, but it is difficult to say because we were unaware of the number of replants.

In Table 7, we determined the survival of Ponderosa Pine, Colorado Blue Spruce and Siberian Larch in an open plot with no shade, planted in a weed barrier fabric. Of the three, Colorado Blue Spruce had the better survival with 100% followed by Siberian Larch at 93.%% and Ponderosa Pine with 66.7%.

In Table 8, we determined survival of Rocky Mountain Juniper and Eastern Red Cedar in a tree shelter area with a weed barrier. Eastern Red Cedar had a survival rate of 100% compared to Rocky Mountain Juniper at 95.5%.

We took measurements on the Black Walnut and Ohio Buckeye, but we were unable to distinguish species due to the time of year. For that reason, we omitted the data.

Table 1. Non-Tilled Shrubs
Shrub Survival # Percent Dead # Percent
Nannyberry 13 92.9% 1 7.1%
American Cranberry 13 100% 0 0%
Juneberry 16 94.2% 1 5.8%
Totals 42 91.3% 2 8.7%

 

Table 2. Tilled Shrubs
Shrub Survival # Percent Dead # Percent
Nannyberry 26 100% 0 0%
American Cranberry 19 95% 1 5%
Juneberry 24 100% 0 0%
Totals 69 98.6% 1 1.4%

 

Table 3. Totals
Shrub Survival# Percent Dead# Percent
Nannyberry 39 97.5% 1 2.5%
American Cranberry 32 96.9% 1 3.1%
Juneberry 40 97.6% 1 2.4%
Totals 111 97.4% 3 2.6%

 

Table 4. Mulched Pines
Pines Survival# Percent Dead# Percent
Ponderosa 41 100% 0 0%
Scotch 40 97.6% 1 2.4%
Colorado Blue Spruce 42 100% 0 0%
Black Hills Spruce 34 100% 0 0%
Totals 157 99.4% 1 0.6%

 

Table 5. Non-mulched Pines
Pines Survival# Percent Dead# Percent
Ponderosa 40 97.6% 1 2.4%
Scotch 36 97.3% 1 2.7%
Colorado Blue Spruce 39 97.5% 1 2.5%
Black Hills Spruce 39 97.5% 1 2.5%
Totals 154 97.5% 4 2.5%

 

Table 6. Totals (Pines)
Pines Survival# Percent Dead# Percent
Ponderosa 81 98.7% 1 1.3%
Scotch 76 97.4% 2 2.6%
Colorado Blue Spruce 81 98.7% 1 1.3%
Black Hills Spruce 73 98.6% 1 1.4%
Totals 311 98.4% 5 1.6%

 

Table 7.
Tree Survival # Percent Dead# Percent
Ponderosa 16 66.7% 8 33.4
Colorado Blue Spruce 25 100% 0 0%
Siberian Larch 29 93.5% 2 6.5%

 

Table 8. Survival rate of Rocky Mountain Juniper and Eastern Red Cedar in a tree
shelter area with a weed barrier.
Tree Survival # Percent Dead# Percent
Rocky Mountain Juniper 21 95.5% 1 4.5%
Eastern Red Cedar 23 100% 0 0%

 

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American Cranberrybush (Non-tilled)
# E to W Mortality Height (in) Diameter (in) Fall Color Observations
1 Alive 15.5 7 Red/Green Insects
2 Alive 20.5 7 Green Insects
3 Alive 26 6.5 Green Cedar apple rust
4 Alive 22 10.5 Red/Green  
5 Alive 15.5 6.5 Red/Green Insects
6 Alive 13.5 5 Red/Green Insects
7 Alive 20 5 Red/Green Insects
8 Alive 17 3 Red/Green Insects
9 Alive 24 6.5 Red/Green Insects
10 Alive 19 9.5 Green Insects
11 Alive 33 10 Green Insects
12 Alive 32 19 Green Insects
13 Alive 13.5 3 Green  
           
Averages 100% 20.9 7.6    
Date 9/29/97        

 

American Cranberry Bush (Tilled)
# E to W Mortality Height (in) Diameter (in) Fall Color Observations
1 Alive 25 17 Green Insects
2 Alive 40 21 Green  
3 Alive 32.5 13.5 Green Cedar apple rust
4 Alive 29 13 Green Cedar apple rust
5 Alive 25 6 Yellow/Red/Green Insects
6 Alive 24 8.5 Yellow/Green Insects
7 Alive 27 24.5 Yellow/Green Insects
8 Alive 23 17.5 Yellow/Red/Green Insects
9 Alive 18.5 8 Yellow/Green Small, 10 ft. from culvert; insects
10 Alive 7 6 Yellow/Red/Green Small, 10 ft. from culvert; insects
11 Alive 16 8 Yellow/Red/Green Single stem; insects
12 Alive 26 12.5 Yellow/Red/Green Single stem; insects
13 Alive 14 9 Yellow/Green Insects
14 Alive 15 11.5 Yellow/Green Insects
15 Alive 12 8 Yellow/Green Single stem; insects
16 Alive 13 7 Red/Green Insects
17 Dead        
18 Alive 31 12 Red Most leaves had fallen; insects
19 Alive 27 11.5 Red/Green Insects
20 Alive 29 15 Red/Green Insects
           
Averages 95% 22.8 12.1    
Date 10/3/97        

 

Juneberry (Non-tilled)
# E to W Mortality Height (in) Diameter (in) Fall Color Observations
1 Alive 15 11.5 Yellow/Red Insects
2 Alive 22 18 Yellow/Green Cedar apple rust; insects
3 Alive 20 10.5 Yellow/Red/Green Cedar apple rust; insects
4 Alive 19.5 12.5 Yellow/Red/Green Insects
5 Alive 13 8 Yellow/Red/Green Insects
6 Alive 23 11.5 Red/Green Insects
7 Alive 11 8 Yellow/Red/Green Cedar apple rust; insects
8 Alive 4 3 Yellow/Green Insects
9 Alive 19 20 Yellow/Red/Green Cedar apple rust; insects
10 Alive 16.5 10.5 Yellow/Red/Green Cedar apple rust; insects
11 Alive 4 1.5 Green Replant
12 Alive 17 10 Yellow/Red/Green Spiders; insects
13 Alive 12.5 10 Yellow/Red/Green Cedar apple rust; insects
14 Alive 16.5 12.5 Yellow/Green Cedar apple rust; insects
15 Alive 16 15 Yellow/Green Insects
16 Alive 14.5 7 Yellow/Red Insects
17 Dead        
           
Averages 94.2% 15.2 10.6    
Date 9/29/97        

 

Juneberry (Tilled)

# E to W

Mortality Height (in) Diameter (in) Fall color Observations
1 Alive 28 32.5 Yellow/Green Insects
2 Alive 22 24 Yellow/Green Insects
3 Alive 24 24.5 Yellow/Green Insects
4 Alive 18 15 Yellow/Green Insects
5 Alive 33 15 Yellow/Green Insects
6 Alive 27 21 Yellow/Green Insects
7 Alive 23 15.5 Yellow/Green Insects
8 Alive 31 19 Yellow/Green Insects
9 Alive 25 17 Yellow/Green Insects
10 Alive 24 17 Yellow/Green Insects
11 Alive 24 18 Yellow/Green Insects
12 Alive 25 16 Yellow/Green Insects
13 Alive 14 8.5 Green Insects
14 Alive 16 15.5 Yellow/Green Insects
15 Alive 14 13.5 Yellow/Red/Green Insects
16 Alive 19 10.5 Yellow/Green Single stem; insects
17 Alive 15 5 Green Insects
18 Alive 24 25 Yellow/Green Insects
19 Alive 17 19 Yellow/Green Insects
20 Alive 23 16 Yellow/Brown/Green Insects
21 Alive 24 18.5 Yellow/Brown/Green Insects
22 Alive 1.5 2 Green Replant
23 Alive 26 15 Yellow/Green Insects
24 Alive 21 11.5 Yellow/Green Insects
           
Averages 100% 21.6 16.4    
Date 10/3/97        

 

Nannyberry (Non-tilled)

# E to W

Mortality Height (in) Diameter (in) Fall Color Observations
1 Alive 18.5 18.5 Green  
2 Alive 16 8.5 Green  
3 Alive 12 9 Green  
4 Alive 11 9.5 Green  
5 Alive 4.5 3 Green Replant
6 Alive 10.5 12.5 Green Insects
7 Alive 14.5 4.5 Green Insects
8 Alive 14 5 Orange/Green Insects
9 Alive 12 12 Green  
10 Alive 18 19 Green Insects
11 Alive 18 25 Green Insects
12 Dead        
13 Alive 15 11.5 Green Insects
14 Alive 9 2.5 Green  
           
Averages 92.9% 13.3 10.8    
Date 9/29/97        

 

Nannyberry (Tilled)
# E to W Mortality Height (in) Diameter (in) Fall Color Observations
1 Alive 14.5 27 Green Insects
2 Alive 24.5 25 Green Insects
3 Alive 45 27 Green Insects
4 Alive 38 32 Green Insects
5 Alive 26 32 Green Insects
6 Alive 30 32.5 Green Insects
7 Alive 23 19.5 Green Insects
8 Alive 47 30 Green Insects
9 Alive 42 27 Green Insects
10 Alive 33 30.5 Green Insects
11 Alive 12 14 Green Insects
12 Alive 20 29 Green Insects
13 Alive 21 29.5 Green Between a Juneberry & Cranberry; insects
14 Alive 14 14 Green Insects
15 Alive 29 24 Green Insects
16 Alive 22 30 Green Insects
17 Alive 23 21 Green Insects
18 Alive 6 6 Green Replant; insects
19 Alive 4 5 Green Replant; insects
20 Alive 2.5 2.5 Green Replant; insects
21 Alive 25 23 Green Insects
22 Alive 19 16 Green Insects
23 Alive 25 16 Green Insects
24 Alive 24 25.5 Green Insects
25 Alive 25 23 Green Insects
26 Alive 21 20 Green Insects
           
Averages 100% 23.7 22.3    
Date 10/3/97        

 

Ponderosa Pine (Mulched)
# N to S Mortality Height (in) Diameter (in) Observations
1 Alive 13.5 8.5  
2 Alive 7.5 5  
3 Alive 12.5 8 Weedy and grassy
4 Alive 11 7 Weedy and grassy
5 Alive 11.5 6 Weedy and grassy
6 Alive 15 9.5 Weedy and grassy
7 Alive 15 15 Weedy and grassy
8 Alive 17 9.5 Weedy and grassy
9 Alive 20 13.5  
10 Alive 13.5 8 Spiders
11 Alive 18.5 18  
12 Alive 10 5.5 Replant
13 Alive 23 18.5  
14 Alive 15.5 7 Grassy
15 Alive 15 9  
16 Alive 7.5 5 Weedy; Replant
17 Alive 20.5 13  
18 Alive 16 11  
19 Alive 12 6 Grassy
20 Alive 12 7  
21 Alive 15 12  
22 Alive 13 5  
23 Alive 21 15  
24 Alive 11.5 10  
25 Alive 9.5 7 Weedy
26 Alive 15 6.5 Ants
27 Alive 25.5 21  
28 Alive 13 7  
29 Alive 14 10  
30 Alive 12.5 9 Weedy and grassy
31 Alive 16.5 11  
32 Alive 12.5 10 Weedy and grassy
33 Alive 24 13 Ants
34 Alive 15 10  
35 Alive 13 10  
36 Alive 17.5 9  
37 Alive 15 9 Weedy
38 Alive 10 11 Weedy and grassy
39 Alive 15.5 9  
40 Alive 11.5 10  
41 Alive 17 9 Weedy
         
Averages 100% 14.7 9.8  
Date 10/9/97      

 

Ponderosa Pine (Non-mulch)

# N to S Mortality Height (in) Diameter (in) Observations
1 Alive 13 10  
2 Alive 13 11 Needles yellow; moles
3 Alive 13.5 8 Deer
4 Alive 19.5 11  
5 Alive 11.5 10 Moles
6 Alive 9 8.5 Moles
7 Alive 9 8 Moles
8 Alive 10 8 Moles
9 Alive 11.5 8 Needles yellow
10 Alive 12 9 Needles yellow; moles
11 Alive 18 10  
12 Alive 11 10 Needles yellow; moles
13 Alive 12 11  
14 Alive 11 9  
15 Alive 9.5 8  
16 Alive 8.5 10 Moles
17 Alive 10.5 7.5  
18 Alive 14.5 11  
19 Alive 9 8.5  
20 Dead      
21 Alive 8 7  
22 Alive 10 8  
23 Alive 13 10  
24 Alive 10 9.5  
25 Alive 8 5  
26 Alive 10 9.5  
27 Alive 11.5 9  
28 Alive 13.5 9  
29 Alive 6 6 Struggling
30 Alive 13 6  
31 Alive 10 7  
32 Alive 15 11.5  
33 Alive 5 7  
34 Alive 16 15 Moles
35 Alive 9 6.5 Moles
36 Alive 5.5 5 Struggling; moles
37 Alive 7 8.5  
38 Alive 16.5 11.5  
39 Alive 9 11.5 Moles
40 Alive 13.5 7  
41 Alive 10.5 10 Moles
         
Averages 97.6% 11.2 8.9  
Date 10/16/97      

 

Scotch Pine (Mulched)

# N to S Mortality Height (in) Diameter (in) Observations
1 Alive 25 20  
2 Alive 19 9 Grassy
3 Alive 21 13 Grassy
4 Alive 16 10.5 Grassy
5 Alive 17 10 Grassy
6 Alive 28 21.5  
7 Alive 12.5 10  
8 Alive 19 10.5  
9 Alive 15 10.5 Grassy
10 Alive 17 9.5 Grassy
11 Alive 19 11.5  
12 Alive 27.5 27.5  
13 Alive 22 23.5  
14 Alive 31.5 17.5  
15 Alive 15 8.5  
16 Alive 15 10.5 Replant
17 Alive 30 23.5  
18 Alive 18 11 Grassy
19 Alive 19 9.5  
20 Alive 7.5 6.5 Grassy
21 Alive 19 14 Grassy and weedy
22 Alive 33.5 23.5  
23 Alive 24.5 23  
24 Alive 16 12  
25 Alive 22 21 Needles yellow
26 Alive 16.5 6 Replant; deer
27 Alive 14 7 Replant
28 Alive 17 11 Needles yellow
29 Alive 25 20  
30 Alive 26 17.5  
31 Alive 13 10.5  
32 Alive 15 10  
33 Alive 20 17.5 Needles yellow
34 Alive 31 22.5  
35 Alive 16 6.5 Replant
36 Alive 17 8.5  
37 Alive 16 8.5 Replant
38 Alive 28 30 Needles yellow
39 Alive 16.5 13  
40 Alive 21 19  
41 Dead     Broke off
         
Averages 97.6% 20.0 14.4  
Date 10/9/97      

 

Scotch Pine (Non-mulch)

# N to S Mortality Height (in) Diameter (in) Observations
1 Alive 16 7.5  
2 Alive 16 7  
3 Alive 16 8.5  
4 Alive 11 7  
5 Alive 16.5 8  
6 Alive 21 17  
7 Alive 17 9  
8 Alive 19 11  
9 Alive 10 6  
10 Alive 20.5 19  
11 Alive 14 10  
12 Alive 10 6  
13 Alive 14 7  
14 Alive 22 20  
15 Alive 12 9  
16 Alive 15 7 Got stepped on
17 Alive 5.5 8  
18 Alive 13.5 8  
19 Alive 17.5 9  
20 Alive 7 4 Struggling
21 Alive 21.5 12  
22 Alive 13 9  
23 Alive 22 10  
24 Alive 17 18  
25 Alive 13 9  
26 Alive 19.5 8 Replant
27 Alive 7 4  
28 Alive 19 15  
29 Alive 27 24  
30 Alive 16 5  
31 Alive 13 6.5  
32 Alive 10 5.5  
33 Alive 12 7  
34 Alive 9 5  
35 Alive 26 19.5  
36 Alive 27 18  
37 Dead      
         
Averages 97.3% 15.7 10.1  
Date 10/16/97      

 

Colorado Blue Spruce (Mulched)

# N to S Mortality Height (in) Diameter (in) Observations
1 Alive 17 16  
2 Alive 19.5 19  
3 Alive 16 16 Deer
4 Alive 16.5 14.5  
5 Alive 13.5 14  
6 Alive 15 12  
7 Alive 17.5 15  
8 Alive 18 15  
9 Alive 11.5 12  
10 Alive 17 16  
11 Alive 14 9.5  
12 Alive 9.5 10 Deer
13 Alive 14 13  
14 Alive 16 15  
15 Alive 12 11.5  
16 Alive 16.5 14.5  
17 Alive 22 20  
18 Alive 14.5 10  
19 Alive 13.5 9.5  
20 Alive 17 13.5  
21 Alive 18 14  
22 Alive 12.5 12  
23 Alive 12.5 8  
24 Alive 16.5 14.5  
25 Alive 11.5 8  
26 Alive 15 13.5  
27 Alive 15 10.5  
28 Alive 12.5 7.5  
29 Alive 17 13.5  
30 Alive 17 14  
31 Alive 14.5 17.5  
32 Alive 16.5 16  
33 Alive 16 11.5  
34 Alive 13.5 12.5  
35 Alive 17 14  
36 Alive 18.5 17  
37 Alive 18 16  
38 Alive 18 17  
39 Alive 19 18  
40 Alive 14.5 14.5  
41 Alive 10 8.5  
42 Alive 11 10.5  
Averages 100% 15.4 13.4  
Date 11/5/97      

 

Colorado Blue Spruce (Non-mulched)

# N to S Mortality Height (in) Diameter (in) Observations
1 Alive 13 11.5  
2 Alive 9.5 8  
3 Alive 11.5 9.5  
4 Alive 13.5 12  
5 Alive 12 9.5  
6 Alive 12.5 13  
7 Dead      
8 Alive 15 15  
9 Alive 16.5 16  
10 Alive 11 12.5  
11 Alive 12 12  
12 Alive 14 12.5  
13 Alive 15.5 13  
14 Alive 12 12  
15 Alive 12 11.5  
16 Alive 11 11  
17 Alive 13 12  
18 Alive 16 14  
19 Alive 8 12  
20 Alive 14.5 17.5  
21 Alive 9 10  
22 Alive 12 11  
23 Alive 11 9.5  
24 Alive 12.5 12  
25 Alive 12 12  
26 Alive 15 14  
27 Alive 11 10  
28 Alive 12 12  
29 Alive 17 17  
30 Alive 17 15.5  
31 Alive 13.5 12  
32 Alive 16 15.5  
33 Alive 10 10.5  
34 Alive 15 17  
35 Alive 13 8.5  
36 Alive 15.5 15  
37 Alive 15 13.5  
38 Alive 13.5 13  
39 Alive 11 8.5  
40 Alive 11 16.5  
         
Averages 97.5% 12.9 12.5  
Date 11/5/97      

 

Black Hills Spruce (Mulched)

# N to S Mortality Height (in) Diameter (in) Observations
1 Alive 18.5 12  
2 Alive 20 14  
3 Alive 25.5 18  
4 Alive 19 14  
5 Alive 18 11.5  
6 Alive 15 10  
7 Alive 24 21  
8 Alive 20 15.5  
9 Alive 10 9.5  
10 Alive 14 14  
11 Alive 9 6  
12 Alive 22 14.5  
13 Alive 17 13  
14 Alive 24 20  
15 Alive 23 18  
16 Alive 22.5 19  
17 Alive 17.5 15  
18 Alive 23 15.5  
19 Alive 16.5 18  
20 Alive 18 12.5  
21 Alive 20.5 18  
22 Alive 16 12.5  
23 Alive 23 21.5  
24 Alive 24 11.5  
25 Alive 16 15.5  
26 Alive 11 14  
27 Alive 21 17.5  
28 Alive 10 11  
29 Alive 11 10  
30 Alive 11.5 8.5  
31 Alive 15 10  
32 Alive 21 17  
33 Alive 20 17  
34 Alive 13 12  
         
Averages 100% 17.9 14.3  
Date 10/28/97      

 

Black Hills Spruce (Non-mulch)

# N to S Mortality Height (in) Diameter (in) Observations
1 Alive 32.5 21  
2 Alive 17.5 13  
3 Alive 21 12 Deer
4 Alive 20 13.5  
5 Alive 23.5 16.5  
6 Alive 17 11.5  
7 Alive 16 11.5  
8 Alive 16 11.5  
9 Alive 18 13.5  
10 Alive 20 13.5  
11 Alive 19.5 14  
12 Alive 16 12.5 Deer
13 Alive 17.5 11.5  
14 Alive 21 14  
15 Alive 23 13 Deer
16 Alive 23 14  
17 Alive 23.5 14  
18 Alive 19 11  
19 Alive 21.5 15  
20 Alive 12 7 Moles
21 Alive 21 19  
22 Alive 16.5 11 Moles
23 Alive 16.5 10.5 Moles
24 Alive 14 10  
25 Alive 13 9  
26 Alive 17 15  
27 Alive 14.5 10.5  
28 Alive 14.5 10 Deer
29 Alive 15 9 Deer
30 Alive 16.5 11  
31 Alive 20 15  
32 Alive 16 16  
33 Alive 14 18  
34 Alive 16 14  
35 Alive 13.5 10 No needles
36 Alive 13.5 12  
37 Alive 15 13  
38 Dead      
39 Alive 17 15.5  
40 Alive 9 8.5 No needles
         
Averages 97.5% 17.7 12.8  
Date 11/5/97      

 

Ponderosa Pine (North Plot)

# N to S Mortality Height (in) Diameter (in) Observations
1 Dead     Cut off
2 Alive 29.5 25  
3 Alive 20 20  
4 Alive 10.5 6 Replant; single stem
5 Alive 21 19  
6 Alive 25 22  
7 Alive 26 20  
8 Alive 20 21  
9 Alive 19 22.5  
10 Dead      
11 Alive 15.5 10  
12 Alive 11 8 Replant
13 Alive 16.5 15.5  
14 Alive 14.5 12  
15 Dead      
16 Dead      
17 Dead      
18 Alive 11 7 Replant
19 Dead      
20 Dead      
21 Dead      
22 Alive 17 15  
23 Alive 8 8 Replant; single stem
24 Alive 5 4 Replant
         
Averages 66.7% 16.8 14.7  
Date 11/17/97      

 

Siberian Larch

# N to S Mortality Height (in) Diameter (in) Observations
1 Alive 4.5 8.5 Cut off
2 Alive 10.5 10  
3 Alive 12.5 12  
4 Alive 12.5 13  
5 Alive 13 8.5  
6 Alive 13 4  
7 Alive 17 3  
8 Alive 13.5 6.5  
9 Alive 13 6  
10 Alive 15.5 7.5  
11 Alive 12.5 4  
12 Alive 12.5 7  
13 Alive 13 5.5  
14 Alive 18 5  
15 Alive 18 2  
16 Alive 10 5  
17 Alive 15 5  
18 Alive 14.5 4  
19 Alive 17.5 5  
20 Alive 20 10.5  
21 Alive 16.5 4  
22 Alive 21 16  
23 Alive 10.5 2  
24 Alive 1.5 1.0  
25 Alive 11.5 5  
26 Alive 15.5 2  
27 Dead      
28 Alive 16.5 4  
29 Alive 17 4  
30 Dead      
31 Alive 10.5 2.5  
         
Averages 93.5% 10.5 2.5  
Date 12/8/97      

 

Colorado Blue Spruce (North Plot)

# N to S Mortality Height (in) Diameter (in) Observations
1 Alive 25 20.5  
2 Alive 12.5 14  
3 Alive 21 22  
4 Alive 15 14  
5 Alive 14.5 11.5  
6 Alive 13 14 Replant
7 Alive 21 18.5  
8 Alive 25.5 20  
9 Alive 23.5 24.5  
10 Alive 23 21  
11 Alive 17 15  
12 Alive 13 13.5 Replant
13 Alive 20 17  
14 Alive 17 21  
15 Alive 19.5 16.5  
16 Alive 17 16  
17 Alive 13.5 11.5 Replant
18 Alive 21 23  
19 Alive 22 16.5  
20 Alive 8.5 14 Replant
21 Alive 11 12 Replant
22 Alive 12 15 Replant
23 Alive 17 15.5  
24 Alive 6.5 9 Replant
25 Alive 11 9 Terminal bud taken off
         
Averages 100% 16.8 16.2  
Date 11/17/97      

 

Rocky Mountain Juniper

# N to S Mortality Height (in) Diameter (in) Observations
1 Alive 18 14  
2 Alive 12 14.5  
3 Alive 15 15.5  
4 Alive 24 16  
5 Alive 22 12  
6 Alive 14.5 15.5  
7 Alive 21 10  
8 Alive 23 16  
9 Alive 20 15  
10 Alive 23 20  
11 Alive 24 20  
12 Alive 16.5 13  
13 Alive 16 12.5  
14 Alive 13.5 9  
15 Dead      
16 Alive 25 15.5  
17 Alive 16 8.5  
18 Alive 17.5 14.5  
19 Alive 13.5 15  
20 Alive 15 12  
21 Alive 14.5 6 Single stem
22 Alive 19 14  
         
Averages 95.5% 18.2 13.7  
Date 11/19/97      

 

Eastern Red Cedar

# N to S Mortality Height (in) Diameter (in) Observations
1 Alive 23 17  
2 Alive 20 13.5  
3 Alive 16 10  
4 Alive 21 13  
5 Alive 23 14  
6 Alive 27 16  
7 Alive 13.5 10  
8 Alive 15 14  
9 Alive 20 13  
10 Alive 24 11  
11 Alive 23 15  
12 Alive 25 14  
13 Alive 24.5 18.5  
14 Alive 24 16  
15 Alive 23 16  
16 Alive 33 18.5  
17 Alive 24 18.5  
18 Alive 16.5 13  
19 Alive 26 17  
20 Alive 25 18.5  
21 Alive 18 12  
22 Alive 30.5 17  
23 Alive 23.5 14  
         
Averages 100% 22.5 14.8  
Date 11/19/97      

 


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