40 BULLETIN 1031, U. S. DEPARTMENT OF AGRICULTURE. 
The basis decided upon as a guide on the reserve in the future dur- 
ing drought, therefore, is shown in Table 14. 
TABLE 14.—Rate of stocking recommended for grama-grass range, Jornada 
Range Reserve, during period of drought as compared with maximum graez- 
ing capacity. 
Rate of Rate of 
stocking in | stocking in 
. acres per | per cent of 
Period. head for | maximum 
365 days’ grazing 
grazing. capacity. 
Wears before Grou sits irs pees cia ee ep VAAL ar Nee creme age i de eke RD lea 27.0 100.0 
Birstpyear On Grough Gai ye see ies whi eae st ln peo es a ily acai ul aang aaa es Be Na ay a 32.2 85.0 
Second syear OL Grout an sos close eee etal Tsl ao he ee eae Reco avenge 45.7 60.0 
PHIT AY EATIOT GT OUT Gees ah eee eae se eras eee I eet a ay aah ah ea 54.0 50.0 
BF OURE VeaT iO fr Ul wba aes ale oe ee epal Cpe cary ued leg (LIne a ee nC RS Ep 54.0 50.0 
1 This estimate is for the drought of 1916-1919. Should drought continue throughout the fourth year or 
longer, a greater reduction would be necessary depending upon existing conditions: 
Intensity of grazing on this basis is shown in comparison with 
the changes in condition of representative grama-grass range pro- 
tected against grazing prior to and throughout the drought which 
ended in 1919. In connection with figure 5, page 21, the probability 
of this curve (density of vegetation) being too high for 1917 and 
1918 was pointed out. The points for 1915 and 1919, however, can 
be relied upon. Figure 8 shows a more rapid and greater total re- 
duction in proposed intensity of grazing than in depreciation of 
range due to drought alone. The difference should make possible 
the maintenance of the range somewhere near the condition of pro- 
tected areas. Just what further reduction in stock would be neces- 
sary in case of prolonged drought is problematical. It is hoped, 
however, that a maximum reduction of about 50 per cent and supple- 
mental feeding will take care of the stock during droughts which 
may occur in the future on the range reserve. 
SUMMER RANGE. 
Tables 15 and 16 show grazing capacity data for pastures 13 and 
1, respectively. Pasture 13 is the most nearly representative of the 
range suitable primarily for summer grazing, but was not so badly 
affected by drought, receiving more rainfall than any other part of 
the reserve. Pasture 1 was representative as to drought, although 
there is a large area of mesquite-sandhill and grama-grass types 
in addition to the summer range. 
( 
