HUDSON BAf 



SILVICULTURE SECTION 



FOREST RESOURCES INVENTORY 



Aerial photography was completed on 18,926 square miles 

 in northern Ontario. In the re-inventory program, field work 

 was carried out on 11,380 square miles in Sioux Lookout 

 District. 



Forest stand maps and tabulated inventory data were 

 completed for 7,750 square miles in Fort Frances, Kenora 

 and Sioux Lookout Forest Districts. The multiplex machine 

 was used to plot the contour and form lines of four Pro- 

 vincial Parks covering an area of 20,300 acres. 



The photo processing unit produced 130,436 contact 

 prints, 2,447 mosaics, 2,683 enlargements, 365 diapositives, 

 1,351 copy negatives and 4,136 square feet of repropositives. 

 Some of these were sold to outside organizations. 



The sharp increase in cash value during the past year is 

 the direct result of using an automatic photo processor 

 which now enables all production to be carried out by the 

 Unit. 



Cross Value of Photoprocessing Production 



Cash Department 



Year Receipts Work Total 



1965-6 $50,755.68 $24,592.23 $75,347.91 



1966-7 56,754.20 31,296.58 88,050.78 



1967-8 53,270.95 30,842.42 84,113.37 



1968-9 63,451.15 51,258.79 114,709.94 



SILVICULTURAL OPERATIONS 



Silvicultural Operations include the regeneration and tend- 

 ing of forests on Crown and Agreement Forest lands and the 

 development of new techniques related to these activities. 

 Also included are special projects involving Junior Forest 

 Rangers and Correctional Camps operated by the provincial 

 Department of Correctional Services and the federal Depart- 

 ment of Justice. 



Regeneration includes both natLJral and artificial re- 

 generation. Site preparation is usually necessary; it disturbs 

 both the forest floor and top soil, creating more suitable 

 conditions for natural regeneration, seeding or planting. 

 Site preparation also promotes better survival and growth. 



In promoting natural regeneration, site preparation 

 usually involves use of heavy equipment, adjacent to seed 

 sources. Harvesting systems may also be modified with the 



MAP OF 



THE PROVINCE OF ONTARIO 



SHOWING 



AREAS COVERED BY ORIGINAL 



FOREST INVENTORY 1946-1957 



WHITE AREAS By Department of Lands and Fji 

 SOLID BLACK AREAS By Private Companies 

 HATCHED AREA No Inventory 



MAP OF 



THE PROVINCE OF ONTARIO 



SHOWING AREAS ON WHICH 



FOREST RE-INVENTORY 



HAS BEEN COMPLETED 



AS OF MARCH 31, 1969. 



