THE RESEEDING OF DEPLETED GEAZIHG LAKDS. 



13 



acre ; and subplot 3, to Kentucky blue grass at the rate of 21 pounds 

 per acre. In each case the seed was planted by the use of a brush 

 harrow. Plots 2, 3, 4, and 5, each 1 acre in area, were seeded to 

 a mixture of timothy 5 pounds, redtop 4 pounds, Kentucky blue grass 

 5 pounds. No soil treatment was given plots 2 and 3. Plot 4 was 

 trampled by sheep after seeding, and plot 5 was thoroughly brushed 

 with a pine-tree harrow. The arrangement of the plots and the 

 native vegetation are shown in figure 3. 



On what is known as the Bear Creek experimental range, an area 

 of 4 acres was seeded to a mixture of 5 pounds timothy, 4 pounds red- 



A 



No soil freafmenf j/Ven 



Brushed 



//7 



4-0 roofs 



Legend 



A - Con/ferous Trees 



Fig. 4. — Chart of the seeding experiment at Bear Creek Station, altitude 4,800 feet. 



top, and 5 pounds Kentucky blue grass. One-half of the area was 

 brushed in and the remaining 2 acres were left untreated. 



The area selected, as shown in figure 4, is a strip 16 rods wide 

 by' 40 rods long, in the bottom of the Bear Creek Canyon, lying 

 within a few rods of the stream. The elevation of Bear Creek at 

 this point is about 4,800 feet, Eidges rise abruptly on both sides to 

 a height of 2,000 feet above the creek. The seeded area is smooth 

 and practically level. The soil is a deep, black, slightly clayey loam 

 of alluvial character. The minimum water contained in the soil 

 taken at a depth of 8 inches during the summers of 1908, 1909, and 

 1910 was 16 per cent. The land originally bore a heavy stand of 

 timber, of which western larch, Engelmann spruce, yellow pine, 



