RANGE AND CATTLE MANAGEMENT DURING DROUGHT. Al 
TABLE 15.—Rate of stocking and estimated carrying capacity, Pasture 13, 1915 
to 1919. 
| Area of pasture 17,001 acres. ] 
Estimated 
ener fe Estimated | grazing 
Period, July 1 to June 30. head for pecan of Capacly. 
365 days’ rage acres pe. 
ait utilized. |head for 365 
Braz ee days. 
OT G we vere ays ut ARE eM RE ot Sy a Ut aM Rake ule Ee ened (unos yd 42.3 100 42.3 
TAG Ga Psy a He A bi Rca ana A A ca CV NGC 64.5 80 51.6 
MOT FETS Dea est De Lhe MIG AE MATL a 02 ONS pe a aA WU LOI HA li se te fa 65.1 90 58. 6 
THEO ee oda eas aul i bead tat ll AN a ee eae an a a chee Ra cl ol Ran MMM OTD nl 114.4 50 Oiki2 
TABLE 16.—Rate of stocking and estimated grazing capacity of Pasture 1, 1915 
to 1919. 
[ Area 74,714 acres. ] 
Estimated 
oe ar Estimated | grazing 
Period, July 1 to June 30. head for oe cent of | capacity 
365 days’ orage acres per 
TEA utilized. |head for 365 
8 8. days. 
TUS EES a Ayes es ee oa eee hte US aU ys SU A ge UY a 48.6 100 48.6 
OT ee ee ph chet SS aa eal NOEL SN ea See er ON A i ga le ak oa 48.2 100 48.2 
TOMY aU Sie ere pera tee econ aro AER oyna yest, Mle eda Seale DNV tata ae aay a Unumie yee Sela 85. 3 100 85.3 
TOTS NOM SECM Baas areal Deh bo aia A wey oie) MS SRY 71.3 80 57.0 
These tables show that the carrying capacity of the summer range 
has varied from 42.3 acres per head in good years to 85.3 acres per 
head in time of drought, a reduction of 50 per cent. Extent of graz- 
ing during the growing season does not affect this type materially, 
although the amount of forage produced and consequently grazing 
capacity are greatly influenced by precipitation. If the 1916-18 dry 
period is a fair measure of the possible severity of drought, and it 
probably is, the number of stock dependent on such range for sum- 
mer grazing should be reduced approximately 50 per cent in the 
third dry year, with some reductions necessary the first and second 
years. This corresponds to the reductions recommended for 
the grama-grass range. It is believed that the reduction in stock 
during drought, as proposed in Table 14, will apply to both the 
erama-grass and tobosa-grass range and therefore to the Jornada 
Range Reserve as a unit or to other range units under similar man- 
agement in southern New Mexico. 
ADJUSTMENTS NECESSARY IN CATTLE MANAGEMENT. 
The great reduction: in the volume of forage produced during 
drought and its effect on the grazing capacity or percentage of stock 
grazed, and the impracticability of extensive feeding to meet the de- 
