Journal of electricity, power, and gas . Fig. 2. Ohio River Chart. tions in the nature and intensity of the one are re-flected in variations in the runoff per inch of precip-itation. The vegetation on the ground surface has toosmall an influence to be detected. Ottawa River Basin, Canada. In connection with the proposed Georgian BayShip Canal, the Department of Public Works, Can-ada, has compiled the discharge of Ottawa Riverabove Besserers Grove (nine miles below Ottawa)from 1850 to date, and the precipitation on the water-. Fig. 3. Ottawa River Chart. shed from 1866 to date. (Georgian Bay Sh
Journal of electricity, power, and gas . Fig. 2. Ohio River Chart. tions in the nature and intensity of the one are re-flected in variations in the runoff per inch of precip-itation. The vegetation on the ground surface has toosmall an influence to be detected. Ottawa River Basin, Canada. In connection with the proposed Georgian BayShip Canal, the Department of Public Works, Can-ada, has compiled the discharge of Ottawa Riverabove Besserers Grove (nine miles below Ottawa)from 1850 to date, and the precipitation on the water-. Fig. 3. Ottawa River Chart. shed from 1866 to date. (Georgian Bay Ship CanalReport for 1908, Plates 30 and 56; also Progress Re-port 1909-1910, p. 41.) No detailed estimate of the amount of deforesta-tion that has taken place on this watershed has asyet been made, except that it is known to be con-siderable. At one time the entire watershed washeavily forested with spruce, pine, etc. Lumbering 136 JOURNAL OF ELECTRICITY, POWER AND GAS [Vol. XXXII—No. 7 operations have been carried on extensively for thepast 30 years at an increasing rate. The river valleysin the lower reaches have for the most part beencleared for agricultural purposes, yet the percentageof reduction of forests on this watershed is not great,but may be taken at about 10 per cent during theperiod of record. The total drainage area above the gauge is 45,500square miles. There are numerous lakes on the water-shed, some of them being of large extent. A largepart of the precipitation is in the form of snow, andthe spring
Size: 1684px × 1485px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauth, bookcentury1800, bookdecade1890, booksubjectelectricity
