erally were shallower or rocky with a slightly 

 rougher topography. The type of fence con- 

 struction required for an ecosystem was also 

 considered; for example, let-down or log type 

 fences in the heavier snow areas compared 

 to the barbed wire steel post type fences in 

 the plains. Cost for this practice also include 



annual repairs and maintenance. 



18. Timber Thinning. — This practice ap- 

 plied only to forest ecosystems and was not 

 used in any other ecosystem. The cost of 

 timber thinning consisted of that cost above 

 normal silvicultural practices directed spe- 

 cifically toward better forage production. 



Table 26. — Investment costs for a sample resource unit ^ 

 [Where no information is shown, costs were not determined] 



Practice 



Unit 



Labor 



Skilled 



Unskilled 



Equipment 

 and materials 



Total costs' 



Fertilization 



Irrigation 



Drainage 



Brush control — mechanical 

 Brush control — chemical _ 

 Brush control — biological 



Brush control- — fire 



Debris disposal 



Undesirable forb control _ 

 Mechanical soil treatments 



Seeding 



Prescribed burning 



Rodent control 



Insect and disease control 

 Small water developments 

 Large water developments 



Fences 



Timber thinning 



Acre 

 Acre 

 Acre 

 Acre 

 Acre 

 Acre 

 Acre 

 Acre 

 Acre 

 Acre 

 Acre 

 Acre 

 Acre 

 Acre 

 Each site 

 Each site 

 Mile 

 Acre 



Per unit 



$ 1.00 

 5.00 



Per unit 



Per unit 



$ 14.00 

 4.00 



2.50 

 .60 



.50 

 .40 



4.00 

 2.80 



.50 



.25 



6.00 



1.00 



1.00 



.50 



1.00 



.50 



100.00 



400.00 



50.00 



4.00 



.75 



.50 



.50 



1.50 



50.00 

 550.00 

 450.00 



1.00 



1.00 

 9.00 

 4.50 

 5.00 

 1.00 

 2.50 

 1.00 



200.00 

 1,050.00 



500.00 



Per unit 



$ 15.00 

 9.00 



7.00 

 3.80 



5.50 



2.00 



15.00 



6.00 



6.50 



3.00 



3.50 



1.50 



350.00 



2,000.00 



1,000.00 



^ This resource unit is in the Sagebrush ecosystem, moderately high productivity class, and good condition. 

 ^ Costs expressed here are in acres, miles (i.e. "units"). Total costs for the resource unit are determined by 

 multiplying costs/unit by acres in the resource unit. 



109 



