FOREST MANAGEMENT 



59 



ministration by reducing the forest yield sees that the market 

 is not depressed by over production, if this seems necessary to 

 attain the desired result. This does not mean that the silvi- 

 cultural welfare of the forest is neglected, but the financial side 

 of the question is considered first. The management of the 

 remaining species, on the other hand, is based rather on the 

 policy of conservation than on financial returns, with the pos- 

 sible exception of aleppo pine, which is now being tapped in 

 turpentine operations. 



FIG. ii. The transport of cork to a local depot in the mountains near 

 Philippeville, Algeria. 



Cork-oak Management. 21 The method of treatment adopted 

 in managing the cork-oak forests is based solely on the re- 

 quirements for cork production; the harvest of tannin as a 

 by-product and the matter of regeneration are considered as 

 separate and distinct, as well as subsidiary, problems. The 

 bark is in reality like a fruit crop, where trees bear only after 

 attaining a certain size and continue fruitful only for a certain 

 period Consequently, the selection system is applied; but 

 with a large area it is neither advantageous nor practicable to 

 collect selection crops over an entire forest each year. It has 



21 Based chiefly on the official working plan for Foret Domaniale des Ouled-el- 

 Nadj, December 10, 1912. 



