RANGE AND CATTLE MANAGEMENT DURING DROUGHT. 390 
sufficient range forage and supplemental feeding. Rapid advance- 
ment in this respect has already taken place in the past few years. 
Along with the records of change in vegetation under protection 
against grazing and undergrazing over the period 1915 to 1919, in- 
clusive, daily records have been kept of the animal days feed fur- 
nished by each of the pastures on the Jornada Range Reserve, and 
approximate figures by seasons for adjoining and nearby unfenced 
ranges have been obtained. 
YEARLONG OR WINTER RANGE. 
The main portion of the yearlong or winter range, consisting of 
the pure grama grass, part of the mixed grass, the snakeweed, and 
the mesquite-sandhill types on the Jornada Range Reserve occurs in 
pastures 2,5,and 10. Carrying-capacity data for these pastures and 
for similar outside range grazed yearling (Tables 10, 11, 12, and 13) 
show the reduction in carrying capacity during drought and the effect 
of the time and degree of grazing. 
In the tables condition of the range, in each case, with the ex- 
ception of pasture 10, is compared with the protected areas for each 
year when such data were available, to eliminate approximately the 
factor of moisture and get at the influence of grazing alone in caus- 
ing range depreciation. 
TABLE 10.—Grazing capacity of pasture 2, 1913 to 1919. 
[Area of pasture, 34,545 acres.] 
Average | Estimated | Estimated Coudiion 
acres percent of| grazing o one noe of 
Period, July 1 to June 30. per head | available | capacity IE Bra Gon 
per year forage in acres, on pro- 
(365 days).| utilized. | per head. fectodtares: 
NOUS OA eee ia ase te ae SaaS Sg Pos foee ost eS ses eeee 26. 6 100 26565 sare eee 
QAR see ee Sareea cierto oo cach i eieceseaccsebes 47.0 57 2ZOZ O75 | ose eh eens 
GIR SLO Meer ca: Soe so eos ant Oe eee esse Sette ey: 33. 1 80 26. 5 108. 0 
TOI = GSS oho aE aE a ies ama eae eye 43.9 90 39. 5 72. 2 
GI Ree pe wae oo yee ASN Ret eee = Rk 2 oS ecient 42.6 1125 53.2 50. 0 
OCS 52 cee scahec mak See aea et SeOe eae ae Se Scan eeaaae 93. 6 90 81.2 34. 6 
LOT O= 20) Seer ney ee ee ape a nis Seta ae are es uc ipereieycee Sire few emase caren eg se eese oe 47.5 
1 80,900 pounds of cottonseed-cake fed in this pasture during the spring of 1918, which increased utiliza- 
tion 25 per cent. ‘ 
TABLE 11.—Grazing capacity of pasture 5, 1915 to 1919. 
[Area of pasture, 2,815 acres.] 
{ 
| 
Average | Estimated | Estimated | Condition 
acres | percent of | grazing gene af 
Period, July 1 to June 30. per head | available | capacity | Condition 
per year forage in acres, on pro- 
| (865 days). | utilized. | per head. | +octed area. 
fol Geaermere see eet). ee OL ee 2351 | 125 | 28.1 | 63.8 
Be Gonmemaney SS. ON. PTS IM 36.0. 100 | 36.0 69.5 
CA AIS Sok sab a aang ST a 2 ea ee D 35. 2. | 100 | S552 82.7 
TOUS 19s SE eee SE STE ALLEL Se OA | 22.3 | 125 | 27.9 | 89. 6 
TQVG= 0 ee ois) IL Jel eats os See closet a cau Beets ec ea | 98. 8 
| | 
