REPRODUCTION OF WESTERN YELLOW PINE. 



121 



been even more intense in the pastures which are almost invariably 

 overstocked with cattle and horses. 



Table 28. — Area* showing damaye hy sheep. 



Description of fenced areas. 



Condition of repro- 

 duction. 



Designation. 



f «hs ri «, Af aromi ^ m ! Inside.no 9, u Hl de ' 

 fenced. Clas, of grazing. £heep C^H., 



Taylor pasture. Fort Valley. 



Corey pasture, 1 Fort Valley.. 



: : Valley. 

 Experiment station pasture.. 



Sauer pasture, south .vest of Riordan. 



Atchison, Topeka A. Santa Fe right 

 of way, Riordan. 



Section 6, north of Riordan 



Experiment area, 8 miles 

 Flagstaff. 



Sample plots 3a and 3b. 

 Bly Ranger Statii m 



Walnut Canvon Ranger Station 



A. L. eV T. pasture, Flagstaff 



7 C. and H. 

 overgrazed, 

 .do. 



Complete .. Poor. .. 



6 

 12 



do 



Mainly H 



20- 



C. and H.. 



overgrazed. 



2s one 



20= 

 • 12 



C.andH 



None 



11 

 8 

 10 



do 



Mainlv H 



d6 



About two- 

 thirds. 



do 



About one- 

 half. 



Complete . . 



Generally 

 good. 



Complete . . 

 About one- 

 half. 



do 



Complete . . 



Good 



do 



Poor or 



none. 



...do..... 



Good *.. 



Poor 



None 



Patches . 



None 



Partial.. 

 Poor.... 

 Patches . 



Stand of timber, 

 all yellow pine. 



Virgin. 



Virgin and open. 



Do. 



Pasture cut over; 

 outside virgin. 



Forest Service cut- 

 ting. 



Forest Service cut- 

 ting on both 

 sides. 



Old cuttings. 



Forest Service cut- 

 ting. 

 Do. 



Virgin. 

 Do. 



Old cutting. 



1 Corey and McCoy pastures are in edge of a large park. The timbered areas are in most places fully 

 stocked, and reproduction has advanced 100 yards into the open area. 



2 Sheep grazing light and irregular. 



One of the less striking examples, but from a scientific stand- 

 point most significant, is that of the fenced sample plots 3a and 

 3b. These plots lie in the midst of a tract excessively used by 

 sheep and almost wholly devoid of reproduction. It is typical 

 of some 150,000 acres in the bunch-grass type between Flagstaff 

 and Belmont, mainly on the north side of the Santa Fe Rail- 

 road. Aside from the 1919 crop of seedlings, which was unusu- 

 ally abundant, young growth occurs outside of the fenced plots 

 only in scattered patches. Careful inspection reveals considerable 

 numbers of seedlings between 1 and 8 inches in height hidden in 

 grass or brushf The few which have grown above the protective 

 covering almost invariably bear evidence of repeated injury by 

 grazing. Often only a few tufts of browsed needles remain, and 

 not infrequently the plant is entirely dead. In the fall of 1919 a 

 seedling survey was made by running a strip 66 feet wide around 

 each plot inside and outside of the fence. In order to avoid 

 abnormal conditions which might result from stock drifting along 

 the fence, the course of the outside strips was kept about 100 feet 

 away from the fence. Only seedlings 1 foot or more in height were 

 counted, since smaller ones could not be seen at a distance on account 

 of the grass. Table 29 shows the number of seedlings in the strips 

 outside the fence, compared with parallel strips of equal width just 

 inside the fence. The seedlings are five times as numerous inside 



