THE NATIONAL FORESTS OF CALIFORNIA 



31 



HYDROELECTRIC POWER FROM STREAMS IN CALIFORNIA 



[Federal Power Commission] 



Total horsepower developed to 192G 1,800,000 



Potential horsepower, estimated 5,000,000 



Estimated power developed from streams in national forests 1, 028, 000 



IRRIGATED LANDS, STATE OF CALIFORNIA 



Acres 



Irrigated by gravity water, 1919 '2,660,578 



Total area under irrigation, 1924 '4,700,000 



Water supply available for 3 6, 200, 000 



Total potential irrigable area * 18, 000, 000 



Over two-thirds of all the irrigated lands in the State are dependent on the 

 national forests for their water supply. 



FARMING, STATE OF CALIFORNIA 



[United States 1925 farm census] 



Acres 



Total farm acreage 27, 565, 440 



Crop land, 1924 5 8,402,195 



Pasture, 1924 16, 907, 167 



Woodland, not pastured 447,489 



All other land 1,808.589 



Value of field and fruit crop, 1925 6 $458. 469, 000 



During the period 1920 to 1925 the number of farms in California increased 

 from 117,670 to 136.409, or an increase of 18,739 farms. The average acreage 

 of these farms is 202.1 acres. 



FIRE RECORD, STATE OF CALIFORNIA 



Year 



Total 

 number 



of fires 

 ■ (tim- 

 j her, 



brush, 

 and 



Area burned (acres) 



1921 



1922 



1923 



1924 



1925 



6-year average 



1,795 

 2,245 

 1,978 

 2,240 

 2,657 

 2,614 



2, 255 



Num- 

 ber of 



man- 

 caused 



fires 



Tim- 

 bered 



1,142 

 2,028 

 1,708 

 1,548 

 1,872 

 1,114 



124, 622 

 30, 148 

 103, 174 

 103,636 

 436, 899 

 20, 618 



Non- 

 tim- 

 bered » 



281, 416 

 620, 576 

 550, 098 

 838,929 

 548, 140 

 163, 093 



I,; 



136,516 .500,375 



Total 



406,038 

 650, 724 

 653,272 

 942, 565 

 985,039 

 183, 712 



636, 892 



Damage 



Timber 



Other 

 damage ' 



$380,859 $185,890 

 67,851 I 562,794 

 211,035 437,725 

 197,922 1,644,302 



1,312,897 1,089,780 

 109,886 i 151,017 



Total 



380, 075 678, 585 1, 058, 



$566,749 

 630,645 

 648,760 



1, 842, 224 



2, 402, 677 

 260,903 



Suppres- 

 sion costs 

 (Federal, 

 State, 

 and 

 private) 



$211,564 

 205.915 

 296. 051 

 245. 724 

 1. 32^. 543 

 250, 435 



423,205 



° Brush, grass, and weed areas. 



6 Includes damage to reproduction, forage, improvements, etc. 



1 United States census, 



- Irrigation report, Commonwealth Club of San Francisco. 



3 Division of engineering and irrigation. State department of public works. 



4 A deficiency in crop land in California occurred in 1024, due to prolonged drought. 

 The normal area of improved lands in farms in the State, as given in the 1920 census, is 

 11,878,339 acres. 



5 United States and State departments of agriculture. 



