SILVICULTURE SECTION 



Inventory Unit 



Capital Air Surveys Ltd. completed vertical aerial photography of 15,417 

 square miles in the Districts of Cochrane and Kapuskasing. Unfavourable weather 

 conditions prohibited the completion of this contract, leaving 1,182 square miles 

 to be flown during the summer season of 1963. Hunting Survey Corporation Ltd. 

 was awarded the contract for vertical aerial photography covering the Geraldton 

 and Port Arthur Districts. This contractor satisfactorily completed 21,300 square 

 miles and the remainder of the area will be photographed in 1963. 



Field work was restricted to 736 square miles, comprising 121 square miles 

 of Agreement Forests of the Southwestern Region and 615 square miles of 

 abandoned licence in North Bay District. One field party was assigned to the 

 North Bay area and two field parties completed the ground sampling on the balance 

 of the Agreement Forests. The properties cruised are as follows: The County 

 Forests of Ontario, York, Dufferin, Middlesex, Kent, Halton, Wentworth, Water- 

 loo, Brant, Oxford, Huron, Bruce and Grey; The Conservation Authority Forests 

 of Metropolitan Toronto and Region, Grand River, Upper Thames, Big Creek, 

 Otter Creek, Middle Maitland and the Ausable River. These parties also covered 

 the scattered Crown lands of this area, including the nursery properties at St. 

 Williams. 



Photo-interpretation was completed for 736 square miles which represents the 

 area of field work as noted above. Forest stand maps and forest ledgers were 

 completed for 3,666 square miles. These covered the Crown Management Units 

 of New Liskeard, Wanapitei, Onaping, Sudbury, Tyson Lake, Trout Lake and 

 Burwash. Included are the Conservation Authority Forests of the South Nation, 

 Napanee, Moira and Ganaraska, the County Forests of Leeds and Grenville, 

 Lanark, Lennox and Addington, Northumberland and Durham, Victoria and 

 Simcoe, the township forests of Marlborough, Torbolton and Galway and various 

 Crown properties at Kemptville, Orono and Midhurst. Work proceeded on revision 

 of the planimetric base maps for those areas covered by the 1961 photography. 



A composite report of the forest resources of Ontario was completed and 

 made available for distribution. This report summarizes the forest surveys carried 

 out between 1946 and 1959 by the Department of Lands and Forests and by those 

 licensees who were required by Statute to supply an inventory of the timber 

 resources on their licensed areas. 



A publication has been prepared on the photographic interpretation of tree 

 species in Ontario. This work is to be used for training personnel on photo inter- 

 pretation and also as a reference for experienced photo interpreters. The publi- 

 cation is unique in that the stereograms are original positives and therefore no loss 

 of detail exists through the printing process. Each stereogram is hand mounted and 

 at present 500 copies have been prepared. The remaining 500 copies are to be 

 completed during 1963. 



The multiplex machine was used to interpret contours and form lines and 

 prepare plans for the Parks Branch. Under this programme, plans were completed 

 for the Killarney Area, 153 square miles with 50' contour intervals. Flack Lake 

 Provincial Park 72 square miles at a scale of 1" = 100 feet, Killarney Area ^1 

 with 10' and 20' contour intervals, Killarney Area ^2 with 10' and 20' contour 

 intervals and Killarney Area ;^5 with 25' contour intervals. 



The use of planimetric and forestry maps remained at a high level. The photo- 

 processing staff produced 64,823 contact prints; 3,644 photo mosaics at a scale 



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