iHELTEE-BELT DEMONSTRATIONS ON THE GREAT PLAINS. 
23 
The actual area covered by the 716 plantings listed as successful 
at the close of the season of 1920 was 625 acres, or an average of 
0.87 acre per planting. This acreage was divided among the four 
States as follows: Montana. 380 acres: North Dakota, 145 acres; 
South Dakota. SO acres: and Wyoming. 20 acres. 
Figure 12 is an outline map of the area in which each township 
(6 by 6 miles) in which one or more plantings had been made in 
1917 or in which application had been made for planting in 1918 is 
represented by a dot. This shows the general distribution of the 
plantings. 
Table 8. — Percentaae of trees of each species or kind of stock living at the end 
of the first season of growth each year from 1916 to 19.20, inclusive. 
Plant- 
ings re- 
ported. 
Species or kind of stock. 
Year. 
Willow 
(cut- 
tings'. 
Willow Poplar Poplar 
(root- (cut- ^ root- 
ed), tings), ed). 
Box 
elder. 
Green 
ash. 
Cara- 
gana. 
White 
elm. 
Chinese 
elm. 
Total. 
1916 
44, 
68.8 
92. 6 72. 9 96. 7 
97.9 
89.1 
81.7 
S3. 3 
72. 3 
88.2 
93.7 
85.0 
77.2 
6S.5 
79.9 
90.5 
""90."6" 
78.6 
80.0 
1917 
63.4 
81.2 
'**88."8* 
81.2 
1918. 
34.4 
59. 4 
56.6 
72.2 
1919... 

59.4 
1920 
40. 5 
84.8 
Table 8 has been compiled from reports sent in by individual farm- 
ers at the end of each growing season. Reports are received on only 
about half the plantings. They contain an actual count of the dead 
trees and serve as a basis for furnishing replacements. Replacement 
planting is not practicable after the second season, as the new trees 
are not able to compete successfully with the older ones. 
Table 9. — Shelter belts planted in 1916 in which different tree species mere still 
alive in 1920. 
Plantings 
inspected. 
Trees living (per cent). 
State. 
Willow. 
*<***. E^eV. 
Green 
ash.i 
Caragana. 
Montana 
214 
74 
51 
10 
53.0 
59.5 
71.2 
60.0 
55. 7 
66.2 
78.9 
50.0 
100 
100 
100 
100 
100 
100 
100 
North Dakota 
100 
South Dakota 
100 
Wvnming2, . 
100 
100 
1 Green ash was planted in all the shelter belts in North Dakota, but in only six in Montana, three in 
South Dakota, and none in Wyoming. 
2 Shelter belts in Wyoming were all in the southeastern part of the State, in Niobrara and Goshen Coun- 
ties. 
Table 8 shows for each year the percentage of each kind of stock 
living at the end of its first season in the ground and indicates the 
relative ease of establishing different species and kinds of stock. In 
the total of all species it indicates the degree of success that cooperat- 
ing farmers have attained in starting their shelter belts. The high- 
